GE Ice Maker Error Code Water LED icon on (solid)

The solid Water LED icon signals that the control board has detected a failure in the machine compartment thermistor circuit. The thermistor is a temperature sensor, and the board has found that its circuit is either open or shorted. When the door is closed, the LED turns off and three audible tones play to confirm the fault. The ice maker cannot accurately monitor machine compartment temperature until the issue is resolved.

The unit will continue running the condenser fan motor continuously during a fault condition, which means some ice production may continue, but the machine cannot properly regulate temperature without a working thermistor. Continuing to operate the unit for an extended period without resolving the fault could contribute to component wear. It is best to diagnose and repair the fault promptly.

A power reset may temporarily clear the displayed fault, but if the underlying thermistor circuit problem is still present the fault will return once the control board completes its diagnostic cycle. The solid Water LED and audible tones will reappear as long as the thermistor reads an open or shorted condition. A lasting fix requires identifying and correcting the actual cause of the circuit fault.

A knowledgeable DIYer can perform basic diagnosis by inspecting the thermistor wiring, checking connector condition, and testing thermistor resistance with a multimeter. If the thermistor element itself has failed, replacing it requires purchasing the correct part and accessing the machine compartment. Control board replacement is more advanced and may be better suited to a qualified technician.

If only the thermistor needs replacement, parts typically cost in the range of $15 to $50 depending on the model, and a repair technician may charge $75 to $150 in labor. If the control board has failed, parts alone can range from $100 to $300 or more. Cleaning a corroded connector costs nothing beyond time and contact cleaner.