Monogram Heater / Temperature Fault

Dishwasher displays F3; may indicate a heating system fault.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed heater element in Monogram dishwasher, Faulty thermistor, Loose heater wiring, Control board heater relay failure

Safety: Disconnect power before testing heater or sensor.

Inspect heater and wiring: Look for burned connectors or damaged heater.
Test heater resistance: Use a multimeter to confirm continuity across the heater.
Test thermistor: Measure resistance and compare to specifications.

Replace any failed components. If both heater and sensor are good, the control board may need replacement.

Hard 4/5

Heater Element

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