Maytag
Will Not Start – Interlock or Control Fault
Microwave display is lit but unit will not start when Start is pressed; no error code shown.
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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
Faulty door interlock switch, Misaligned door latch, Defective Start button on keypad, Failed relay on control board
How to Fix / Troubleshooting
Safety first: Unplug the microwave before accessing door or control components.
Basic checks:
- Ensure the door is fully closed and latched; press firmly on the door and try again.
- Try multiple functions (e.g., Add 30 Sec, Time Cook) to see if any start.
Door-related issues:
- If the display shows "Door" or similar when trying to start, suspect the door switches or latch.
- Inspect and, if qualified, test and replace faulty door interlock switches or latch assembly.
Keypad/control issues:
- If only the Start key is unresponsive, the keypad may be failing.
- If relays on the control board do not click when starting, the electronic control board may be defective.
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Repair Difficulty
Hard
4/5
Required Part
Door Interlock Switch Assembly
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