circuit priming message loops at beginning, but machine brews coffee

Circuit priming message loops at beginning, but machine brews coffee

When starting the machine after it was off for a while, it circles in a loop trying to prime the water pipe. It displays a message saying “circuit priming”. But it never stops unless manually hit the ESC button. After that, the machine works fine and can brew coffee, dispense hot water. Even after the machine went to sleep, turn it on, it will continue to work. This problem only occurs after the machine is off for a long time.

Unlike others can’t brew at all, this machine working perfectly after escape the starting priming. I cleaned the machine using factory liquids, oil removal tablet, and tried to inject hot water into a few openings. But no luck. Hope someone can help.

Thank you

Oliver H.