Fisher & Paykel Washer Error Code 226

Error code 226 on a Fisher & Paykel washer indicates a MarchX RAM check error within the Motor Control Module (MCM). The MarchX algorithm is a memory testing routine used to verify the integrity of RAM (Random Access Memory) on the control board. During startup or operation, the MCM runs this diagnostic test on its own internal RAM. If the test detects a failure, such as a memory cell that cannot reliably store or retrieve data, error code 226 is triggered. This points directly to a hardware fault within the Motor Control Module itself.

The Motor Control Module is responsible for regulating motor speed, direction, and torque throughout the wash cycle. Because the MCM relies on RAM to temporarily store operational data, a RAM failure means the module cannot function reliably or safely. This type of fault is not caused by external wiring, sensors, or the motor itself. The failure is internal to the MCM's onboard electronics, specifically its memory architecture.

Because the fault is internal to the MCM's onboard RAM, there is no external component to test, adjust, or replace that will resolve the condition. Power cycling the machine may temporarily allow the washer to restart if the RAM check passes on the next boot cycle, but a true RAM hardware fault will return consistently. The direct and recommended course of action is replacement of the Motor Control Module.