Whirlpool Washer Error Code 311

Error code 311 on a Whirlpool washer means the compressor motor inverter board has detected and reported a fault. The inverter board controls the motor that drives the compressor or blower, and this code appears when that board cannot operate normally. The washer stops as a protective measure to prevent further damage. Diagnosing the fault starts with verifying that the correct AC voltage is present at the board's supply connector.

No, you should not attempt to run the washer while error code 311 is active. The machine has stopped operation because the inverter board detected a fault, and continuing to use it could cause further damage to the motor or board. Disconnect power to the unit until the fault has been properly diagnosed and resolved.

Repair costs vary depending on what component has failed. If the issue is a loose connector or wiring problem, costs may be limited to a service call fee, typically in the range of $75 to $150. If the inverter board needs replacement, parts and labor combined can range from $200 to $450 or more depending on the specific model and local labor rates. A motor replacement would likely fall at the higher end of that range or beyond.

Some steps, such as checking the power supply voltage, inspecting the CN8 connector for loose or corroded pins, and ensuring the unit has adequate ventilation, can be performed by a knowledgeable DIYer. However, working near live AC voltage requires caution and proper safety practices. If the inverter board or motor needs replacement, those repairs are more involved and may be better suited for a qualified technician.

Performing a reset may temporarily clear the code, but if the underlying cause has not been addressed, the error will return once the washer attempts to operate again. A reset alone is not a repair. The supply voltage, wiring, inverter board, and motor should all be inspected to find and correct the actual source of the fault.