Fisher & Paykel Washer Error Code 42

Error code 42 means the Motor Controller received confusing or contradictory feedback from the rotor during Phase 1 of motor operation. The controller could not reliably determine rotor position, so the machine halted the cycle. This can be caused by a transient electrical glitch, a faulty rotor sensor, damaged wiring, or a problem with the Motor Controller board itself. The first recommended step is to turn the machine off at the wall for 5 seconds and then restart it.

You should not continue running the washer while error code 42 is active. The machine has detected unreliable motor feedback and has stopped the cycle to protect the motor and drive components from potential damage. Attempting to force the machine through a cycle under these conditions could worsen the fault or damage additional components.

Repair costs depend on the root cause of the fault. If a wiring or connector issue is found, costs may be relatively low, typically in the range of a service call fee plus labor. Replacing a rotor position sensor or Motor Controller board will add parts costs, and total repair bills for those components can range from around $150 to $400 or more depending on parts pricing and local labor rates.

A power cycle reset, turning the washer off at the wall outlet for 5 seconds and restarting, is the first recommended diagnostic step and may clear the error if it was caused by temporary electrical interference. If the code returns after resetting, the underlying cause is likely a hardware fault such as a damaged sensor, wiring issue, or Motor Controller problem that will need further diagnosis and repair.

Start by turning the washer off at the wall for 5 seconds, then restart and attempt a new cycle. If the error returns, inspect the wiring harness and connectors between the rotor sensor and the Motor Controller for damage, corrosion, or loose connections. If the wiring appears sound, the rotor position sensor or the Motor Controller board may need to be tested and potentially replaced by a qualified technician.