Fisher & Paykel Washer Error Code 72

Error code 72 indicates a pressure transducer error caused by maximum positive drift. The washer's control module re-calibrates the water level sensor during operation and compares that reading to a factory-programmed zero value. When the difference between these two values exceeds an acceptable threshold, the machine stops and displays error 72. The Motor Control Module is the primary suspect in this fault.

It is not recommended to continue using the washer while error 72 is active. The pressure transducer is responsible for controlling water fill levels, and a significant calibration fault means the machine may not accurately detect water levels. Running the washer in this state could potentially lead to overfilling or other water-related issues. Stop using the appliance until the fault is diagnosed and repaired.

A power reset by unplugging the washer for a few minutes may temporarily clear the error and allow a cycle to start, but the fault is rooted in a hardware component issue rather than a software glitch. If the Motor Control Module or pressure transducer is genuinely faulty, the error will return during the next wash cycle when the re-calibration routine runs again. A reset is not a permanent fix and the underlying cause must be addressed.

The primary recommended fix is replacing the Motor Control Module, which is a moderately advanced repair requiring comfort with disassembling the washer cabinet and handling electronic components. A knowledgeable DIYer can perform this replacement, but if the error persists after the module is swapped, a technician should inspect the pressure transducer and air chamber hose. Always disconnect power before working on any internal components.

Repair costs vary depending on whether the Motor Control Module, the pressure transducer, or both need to be replaced. Parts alone for a Motor Control Module typically range from $150 to $350, while professional labor can add $100 to $200 depending on your location. If only the pressure transducer or air hose is at fault, costs are generally lower. Getting a diagnostic estimate from a certified technician before committing to parts is advisable.