Dishwasher displays F3; cycle may stop during heating or drying.

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

Open heater element, Faulty high-limit thermostat, Wiring issue, Failed control board heater relay

Safety: Disconnect power and allow the unit to cool before testing heater components.

Inspect heater element: Look for visible damage. Test continuity with a multimeter; replace if open.
Check high-limit thermostat: Locate the thermostat (often on the tub bottom or heater circuit). Test for continuity; replace if open.
Inspect wiring: Check heater and thermostat wiring for burns or loose connections.
Control board: If all components test good, the control board may not be energizing the heater and may require replacement.

Hard 4/5

Heater Element

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