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Error code reference

Fisher & Paykel Dishwasher Error Code F3

The water temperature is sensed as greater than 80°C, possibly due to element failed on, temperature sensor failure, electronics ADC failure, or…

Fisher & Paykel codesFisher & Paykel dishwasher codes
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What the F3 error code actually means

Your Fisher & Paykel dishwasher is detecting water that is dangerously hot, above 80°C (176°F), and has stopped operating to prevent damage. This could be because your home's hot water is set too high, or because a part inside the dishwasher like the heating element or a temperature sensor has failed. A technician can diagnose whether the problem is with your water supply or an internal component.

Diagnostic procedure

The full F3 procedure

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1
First diagnostic step
Check if the incoming water temperature is greater than 80°C; adjust the incoming water temperature.
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Most common causes of F3

Ranked by how often they cause this code
  1. 1Incoming water supply too hot
  2. 2Temperature sensor failure
  3. 3Heating element failed in the on position
  4. 4Control board ADC failure

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Questions people ask about F3

What does F3 mean on a Fisher & Paykel dishwasher?
F3 means the dishwasher has detected a water temperature greater than 80°C. The machine monitors water temperature continuously, and this fault triggers when that threshold is exceeded. The cause can be an overheated incoming water supply, a failed heating element, a faulty temperature sensor, or a failure in the control board's analog-to-digital converter circuit.
Is it safe to use my dishwasher when it shows an F3 error?
No, you should not attempt to continue running the dishwasher while F3 is active. Water temperatures above 80°C can damage the dishwasher's internal components, warp plastics, and pose a scalding risk if water is expelled during the cycle. Leave the machine off until the fault is diagnosed and resolved.
How much does it cost to repair an F3 error on a Fisher & Paykel dishwasher?
Repair costs vary depending on the cause. If only the water heater thermostat needs adjustment, there is no parts cost. Replacing a temperature sensor is typically the least expensive parts repair, while a new heating element or control board will be more costly. Including labor, most F3 repairs fall somewhere in the range of $100 to $400 depending on which component has failed.
How do I fix an F3 error on my Fisher & Paykel dishwasher?
Start by checking the temperature of the hot water supply entering the dishwasher. If it exceeds 80°C, lower your water heater thermostat and test again. If the supply temperature is normal, a technician will need to test the temperature sensor and heating element with a multimeter, and assess the control board if both other components check out.
Will resetting the dishwasher clear the F3 error?
A reset may temporarily clear the F3 code, but it will return as soon as the dishwasher runs another cycle if the underlying problem has not been fixed. If the incoming water is too hot or an internal component has failed, the fault will reappear. Only correcting the root cause will permanently clear the error.

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