Fisher & Paykel Dishwasher Error Code E3

E3 indicates an over temperature fault, meaning the dishwasher has detected that the water temperature has exceeded safe operating limits. The appliance stops the cycle automatically to prevent damage. The most common cause is a hot water supply connected to the machine that is running above 60°C.

You should not attempt to bypass or ignore the E3 fault. The machine has stopped the cycle specifically to prevent damage from excessive heat, which could harm internal components, seals, or your dishes. Resolve the underlying cause before running another cycle.

If the fix is simply adjusting your water heater temperature, the cost is minimal to nothing. Replacing a faulty thermistor or temperature sensor typically costs between $50 and $150 for the part plus labor. A heating element replacement or control board repair can range from $100 to $350 or more depending on parts and the technician's rates in your area.

Start by checking the temperature of the water supply connected to the dishwasher. If it exceeds 60°C, lower the water heater setting or replumb the unit to a cooler supply. If the supply temperature is within range, the fault may lie with the temperature sensor or heating element, which will require further testing or professional diagnosis.

A reset may clear the error code temporarily, but if the root cause has not been addressed, the E3 fault will return as soon as the dishwasher detects the over temperature condition again. Always identify and correct the cause first, whether that is the supply water temperature or a faulty component, before attempting a reset.