Maytag Dishwasher Error Code 1F3

The 1F3 code means the main control board is not communicating properly with the Wash Process Sensor. The Wash Process Sensor monitors conditions during the wash cycle, and this error appears when the data link between the sensor and the control board breaks down. The dishwasher will typically stop operation until the fault is resolved.

Resetting the dishwasher by cutting power at the breaker or unplugging it for a few minutes may temporarily clear the code, but it will return if the underlying communication fault is not repaired. A reset is a useful first step to confirm the code, but it does not fix wiring issues, a bad sensor, or a faulty control board.

Repair costs depend on which component has failed. If the fix involves only reseating a connector or addressing corrosion, costs can be minimal. Replacing a Wash Process Sensor typically runs in the range of $50 to $150 for the part, while a main control board replacement can cost anywhere from $100 to $300 or more for the part alone, with additional labor charges if a technician performs the repair.

Start by checking the wiring connections between the Wash Process Sensor and the control board, looking for loose, corroded, or damaged connectors. If the connections are secure, the next step is to evaluate whether the Wash Process Sensor itself is functioning properly. If both the connections and sensor check out, the control board should be inspected as the final possible fault.

It is not recommended to continue running the dishwasher while the 1F3 code is active. The error indicates the control board cannot properly monitor the wash cycle through the Wash Process Sensor, which means the appliance may not be operating within its intended parameters. Running it in this condition could result in poor wash performance or further component stress.