Frigidaire Refrigerator Error Code WATER HEATER ERROR

This error means the control board has detected a problem with the water reservoir tank heater circuit. The board has found either an open circuit (broken heater element with no continuity) or a short circuit in the heater. The error is designed to alert you that the heater is not functioning correctly, which could allow the internal water reservoir to freeze and affect water dispensing.

A reset may temporarily clear the error code from the display, but if the underlying heater circuit fault still exists, the error will return. The control board will re-detect the open or shorted heater on its next diagnostic cycle. A permanent fix requires repairing or replacing the faulty component rather than just resetting the appliance.

If only the water reservoir tank heater needs replacement, parts typically range from $20 to $80 depending on the specific model, with professional labor adding $100 to $200 in most markets. If the PCB is also damaged due to a shorted heater, total repair costs can rise to $200 to $500 or more. Diagnosing the fault yourself before calling a technician can help reduce labor time and overall cost.

Start by disconnecting the heater connector from the PCB and measuring resistance across the heater terminals with a multimeter. An open circuit (OL reading) or a near-zero ohms reading confirms a failed heater element that needs replacement. If the heater tests normally, inspect the wiring harness for damage or corrosion at the connector pins before considering the PCB as a potential cause.

A shorted heater element does carry a degree of electrical risk and should be addressed promptly. In a shorted condition, the control board may disable the heater circuit to protect the appliance, but you should avoid ignoring the error for an extended period. Disconnecting the heater from the PCB until the part can be replaced is a reasonable precaution if a short is confirmed.