Fisher & Paykel Washer Error Code 26

Error code 26 means the Motor Control Module has detected an abnormal voltage from the valve diagnostic circuit, indicating a fault with the cold water inlet valve, the hot and cold inlet valves together, or the dispensing valves. The MCM monitors this circuit continuously and triggers the error when the measured voltage is outside the acceptable range. This error will stop normal washer operation until the fault is resolved.

It is not recommended to continue running the washer while error code 26 is active. A faulty valve or wiring fault can result in incorrect water fill behavior, including underfilling, overfilling, or failure to fill at all. Running a cycle with a compromised valve circuit could lead to poor wash results or, in some cases, water control issues. Resolve the fault before resuming normal use.

If the fix is simply reseating a loose connector or straightening a bent pin, there is no parts cost involved. Replacing an inlet or dispensing valve typically costs between $40 and $120 for the part, depending on the specific valve and model. If a technician is needed, expect to add labor costs in the range of $80 to $180 depending on your location and the complexity of the repair.

Start by checking that all valve wiring harness connectors are fully seated at both the valve bodies and the Motor Control Module, and inspect each connector for pins that may be bent or pushed backward. If the connections are secure and undamaged, the next step is to test the solenoid coils on the cold inlet valve, hot inlet valve, and dispensing valve for correct resistance. Any valve with a failed coil will need to be replaced. If the wiring and valves check out, the Motor Control Module may need further evaluation.

A power reset may temporarily clear the error display, but the code will return if the underlying fault has not been corrected. The Motor Control Module will re-detect the abnormal voltage from the valve diagnostic circuit as soon as it performs another check. A lasting fix requires identifying and repairing the faulty wiring connection or replacing the defective valve component.