Einleitung
If your Frigidaire oven won’t heat, or it only warms to under about 200 °F, the problem is often a failed bake element, a bad oven temperature sensor (sometimes called a thermostat), a damaged terminal block or power connection, or a failing control board. This guide walks through simple checks, safe electrical testing, and basic part replacements to restore normal heating without an unnecessary service call.
Was du brauchst
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Schritt 1 Prepare and work safely
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Turn off the range, let it cool completely, and pull it away from the wall so you can access the back.
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Unplug the power cord before opening panels or disconnecting any wires.
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Set up a phone to take clear photos of wire positions before removing anything from the control board or terminal block.
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Schritt 2 Confirm the problem is oven heating
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Turn a surface burner knob to the highest setting and confirm a burner heats normally.
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Test the Broil function and check whether the broil element heats.
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Schritt 3 Test the outlet and power cord voltage
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Set a multimeter to AC voltage.
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Measure left hot to neutral and right hot to neutral, and expect about 120 V on each leg.
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Measure left hot to right hot, and expect about 240 V.
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Fully reset the breaker if voltage is wrong, and call an electrician if voltage stays incorrect after reset.
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Schritt 4 Inspect and test the terminal block
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Locate the terminal block at the bottom center of the range, and inspect it for burn marks, melted plastic, or loose or damaged wires.
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Inspect the power cord wires at the terminal block and the three wires leaving the block into the range.
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If needed, test the terminal block just like the outlet by measuring hot-to-neutral (about 120 V each) and hot-to-hot (about 240 V).
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Unplug the range after the voltage checks before continuing.
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Schritt 5 Visually inspect and optionally replace the bake element from the front
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Inspect the bake element inside the oven for visible damage like scorching, charring, cracks, or sections that look exploded.
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Use a screwdriver to remove the two screws holding the bake element to the rear oven wall.
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Pull the element toward you a few inches to expose the wire connectors.
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Clamp the wires in place with a clamp on each side so the connectors don’t slip back through the hole.
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Disconnect the element from the terminals, swap in a replacement element, reconnect it, and reinstall the two mounting screws.
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Schritt 6 Remove the rear access panels
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Use a 1/4 inch hex head screwdriver or a drill gun with a 1/4 inch hex head to remove the screws holding the rear silver panel(s).
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Lift the panel(s) away and set the screws aside for reassembly.
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Schritt 7 Test the bake element from the back
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Inspect the bake element wiring harness where it attaches to the element for burned, loose, or damaged connectors.
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Remove one wire from the bake element so you can test the element by itself.
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Set a multimeter to ohms resistance and measure across the two element terminals.
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Replace the bake element if the reading is OL or extremely high, and expect about 10–20 ohms on a good element.
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Schritt 8 Test and replace the oven temperature sensor
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Locate the oven temperature sensor on the right side near the middle of the oven cavity.
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Unplug the sensor from its harness so you can test the sensor by itself.
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Set a multimeter to ohms resistance and measure across the sensor terminals.
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Replace the sensor if it reads OL or if it’s far outside about 1050–1100 ohms.
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Remove one or two mounting screws, rotate the sensor housing counterclockwise if required, and pull the sensor out.
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Install the replacement sensor, reinstall the mounting screw(s), and reconnect the wire harness securely.
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Schritt 9 Test the control board bake output voltage
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Locate the control board and identify the two wires that feed the bake element from the board, which are yellow and orange on the unit shown.
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Clip multimeter alligator clamps to the two bake-output wires or carefully hold probes on the connections.
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Set the oven clock so it isn’t flashing 12:00, because an unset clock can prevent operation on some models.
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Set the oven to Bake at about 375–400 and wait for it to click on.
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Expect about 240 V AC when the board is calling for bake heat, and replace the board if it’s much lower like 160 V or less.
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Schritt 10 Replace the control board
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Unplug the range before removing or installing the control board.
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Take a photo of all wires on the control board, including the large terminal connector at the bottom.
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Remove the spade connectors from the board, using needle nose pliers if they’re tight.
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Use a Phillips screwdriver to remove the four Phillips screws holding the control board, and support the board so it doesn’t fall when the last screw comes out.
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Transfer or install the plastic overlay if needed by peeling the adhesive backing, aligning it to the buttons and display, and pressing firmly.
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Install the replacement board with the four screws, reconnect all wires by matching the letter and number markings, and set the clock after restoring power.
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Schritt 11 Replace a melted or damaged terminal block
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Use a 3/8 inch socket wrench to remove the nuts holding the three power cord wires to the terminal block posts.
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Remove the cord wires from the terminal block and replace any burned wires before reassembly.
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Remove the screws securing the terminal block to the chassis, including the green ground screw and grounding strap if present.
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Mount the replacement terminal block using the supported holes on the chassis, because there may be multiple hole patterns.
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Reinstall the grounding strap unless the range uses a four-wire connector, which doesn’t use the grounding strap.
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Reinstall the range wiring on the posts and tighten the nuts securely, using 10 AWG wires if replacements are needed.
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Schritt 12 Reinstall the rear panels and secure the power cord
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Reinstall the rear panel(s), align all holes, and reinstall the screws using a 1/4 inch hex head screwdriver or drill gun.
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Reinstall the power cord onto the terminal block posts and tighten the included hex screws or nuts firmly with a screwdriver or socket wrench.
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Schritt 13 Check for a thermal fuse and damaged wiring
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Look for a thermal fuse on the back of the range if the oven still won’t heat after the main tests.
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Test the thermal fuse with a multimeter for continuity and replace it if it doesn’t have continuity.
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Inspect wiring between the control board and the bake element for broken or burned terminals, especially at exposed metal connectors.
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Schritt 14 Test the oven
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Restore power, set the clock, and run Bake to confirm the bake element heats.
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Test Broil as well to confirm the range heats in both modes.
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