Dishwasher shows F7E2 and may stop mid-cycle or not advance, often with no heat and long cycle times.
Safety Warning
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
How to Fix / Troubleshooting
Safety first: Disconnect power immediately if you suspect overheating.
- Inspect heater and wiring: Look for signs of overheating, melted insulation, or discoloration around the heater terminals.
- Check thermistor: Test the temperature sensor for proper resistance at room temperature and compare to the tech sheet.
- Inspect control board: Look for a welded or burnt heater relay on the main control board.
Repair action: Replace the main control board if the heater relay is stuck or damaged. Replace the thermistor if it is out of specification. Do not operate the dishwasher until the overheating issue is resolved.
Repair Difficulty
Required Part
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