Microwave shows E18 and the exhaust fan on an over-the-range model does not operate or is stuck on high.
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: Turn off power at the breaker or unplug the unit before inspection.
Steps:
- 1. Check fan settings: Cycle through fan speeds on the control panel to see if any setting works.
- 2. Listen for noise: If the motor hums but the fan does not move air, the blower wheel may be jammed.
- 3. Access blower (for DIYers): Remove the top grille and blower cover (per Vida instructions). Inspect the blower wheel for obstructions and ensure it spins freely.
- 4. Wiring: Check that the fan motor connectors are secure.
If the motor is seized or open-circuit, replace the exhaust fan motor assembly. If the fan runs constantly regardless of settings, the control board relay is likely stuck and the board will need replacement.
Repair Difficulty
Required Part
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