F7E2
Maytag
Heater Relay or Temperature Control Fault
Dishwasher stops with heating-related error; may show F7E2 heater stuck on or off.
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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.
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Possible Causes
Shorted heater relay on control, Shorted heating element to ground, Faulty temperature feedback
How to Fix / Troubleshooting
Safety First: Disconnect power before any testing. Heating circuits involve live line voltage.
Steps:
- Ground test: With the dishwasher unplugged, test the heating element for continuity to ground. Any continuity to chassis indicates a shorted element that must be replaced.
- Inspect control board: Remove the inner door panel and inspect the control board for burned heater relay contacts or traces.
- Replace failed parts: Replace a shorted heating element. If the element is good but the relay is stuck or burned, replace the main control board.
- Re-test: After replacement, run a diagnostic cycle to confirm proper heater operation and that the error is cleared.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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