Have you tried placing an appropriate thermometer in the refrigerator compartment to check whether the displayed temperature is accurate or not, (within a degree anyway)?
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors in your model. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
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Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is open or shut. At least for me anyway ;-)
+
Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is partially open or shut. At least for me anyway ;-)
Can feel if any air is coming though it? The evaporator fan in the freezer compartment will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on when both the doors are shut and off when either door is open. You don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
Have you tried placing an appropriate thermometer in the refrigerator compartment to check whether the displayed temperature is accurate or not, (within a degree anyway)?
-
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors. One each in the fridge, freezer and quick chill section
+
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors in your model. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is open or shut. At least for me anyway ;-)
Can feel if any air is coming though it? The evaporator fan in the freezer compartment will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on when both the doors are shut and off when either door is open. You don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
Have you tried placing an appropriate thermometer in the refrigerator compartment to check whether the displayed temperature is accurate or not, (within a degree anyway)?
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is open or shut. At least for me anyway ;-)
-
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
+
Can feel if any air is coming though it? The evaporator fan in the freezer compartment will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on when both the doors are shut and off when either door is open. You don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
Have you tried placing an appropriate thermometer in the refrigerator compartment to check whether the displayed temperature is accurate or not, (within a degree anyway)?
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is open or shut. At least for me anyway ;-)
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
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+
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
-
Looking at an image of the damper it shows that the shutter is black in colour but it is hard to tell from your image of it, if it is open or shut. At least for me anyway ;-)
+
Looking at an image of the damper in the parts list, it shows that the shutter is black in colour but it is hard to tell from your image of it whether it is open or shut. At least for me anyway ;-)
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
+
The display temperatures are usually derived from the temperature sensors in the compartments. There are 3 temperature sensors. One each in the fridge, freezer and quick chill section
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
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Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
+
Given the cost of the refrigerator sensor ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
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Looking at an image of the damper it shows that the shutter is black in colour.
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If the damper fails to close then this may be why the fridge temperature is too low. Is the freezer temperature OK or also too low?
+
Looking at an image of the damper it shows that the shutter is black in colour but it is hard to tell from your image of it, if it is open or shut. At least for me anyway ;-)
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
-
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
-
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
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-
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Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
+
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) as opposed to the damper control unit (part #367 or #368 fresh food section) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
-
Looking at an image of the damper (part #367 or #368 fresh food section) it shows that the shutter is black in colour.
+
Looking at an image of the damper it shows that the shutter is black in colour.
-
If the damper dials to close then this may be why the fridge temperature is too low.
+
If the damper fails to close then this may be why the fridge temperature is too low. Is the freezer temperature OK or also too low?
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
-
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range
+
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range.
-
Looking at an image of the damper (part #367 or #368 fresh food section) it shows that the shutter is black in colour. Can feel the air coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
+
Looking at an image of the damper (part #367 or #368 fresh food section) it shows that the shutter is black in colour.
+
+
If the damper dials to close then this may be why the fridge temperature is too low.
+
+
Can feel if any air is coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range
-
Looking at an image of the damper in the parts list it shows that the shutter is black in colour. Can feel the air coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
+
Looking at an image of the damper (part #367 or #368 fresh food section) it shows that the shutter is black in colour. Can feel the air coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range
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I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
+
Looking at an image of the damper in the parts list it shows that the shutter is black in colour. Can feel the air coming though it? The evaporator fan will stop when a door (either door, refrigerator or freezer) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
-
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen
+
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen to maintain the compartments within their set operating range
I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
+
+
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen
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I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open so to feel for the air coming through the damper, with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
+
I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open, so to feel for the air coming through the damper with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
-
-
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
+
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
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You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen
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There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open so to feel for the air coming through the damper, with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
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Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
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I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open so to feel for the air coming through the damper, with a door open, manually operate the door switch to turn off the light in the compartment. This switch usually is also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the switch you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
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I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open so to feel for the air coming through the damper, with a door open, manually operate the door switch to turn off the light in the compartment. The door switch(s) are usually also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the door switch(s) you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running
Hi,
The display temperatures are usually derived from the temperature sensors in the compartments.
Your model has 3 temp sensors. One in the fresh food section (refrigerator), one in the freezer section and one in the quick chill section.
Here’s a link to the [https://www.searspartsdirect.com/model/3ej3xur8sj-000432/ge-zisb420dra-side-by-side-refrigerator-parts|parts diagrams] for your model[br]
Given the cost of the sensor part ([https://www.searspartsdirect.com/product/4rvysn151y-0046-363/id-wr55x10025|part #336 - fresh food section]) it may be worthwhile replacing it first to see if that resolves the problem.
You could test the sensor but would have to know its’ specifications, (which I don’t) to see if it was still within specs. Normally they are NTC (negative temperature co-efficient) thermistors which means that as the temperature increases, their resistance decreases and their datasheet would show what their known resistance value is at any given temperature within their operating range. This resistance value is used by the control board to determine what should happen
There are other suppliers online. Just search for ''ZISB420DRA parts'' to get results for suppliers that suit you.
I don’t know about the damper but if you can’t feel the air coming though it, it will be closed. The evaporator fan will stop when a door (either door) is open so to feel for the air coming through the damper, with a door open, manually operate the door switch to turn off the light in the compartment. This switch usually is also used to signal the control board to turn the evaporator fan on (when both the doors are shut) and off when either door is open as you don’t want to be blowing the cold air out of the compartments. By manually operating the switch you fool the control board into thinking that the door is shut and the fan should start again. The evaporator fan should run as long as the compressor is running