Microwave shows E9 and will not start, often after a door slam or impact.
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: Unplug the microwave before inspecting the door mechanism.
Door inspection:
- Open the door and examine the plastic latch hooks on the door edge. Look for cracks, chips, or missing pieces.
- Check that the door closes evenly and that the gap around the door is uniform. A warped door may not engage the interlock switches correctly.
- Gently lift the door up and down; excessive play can indicate worn hinges or a bent hinge bracket.
Cabinet-side latch check:
- With the cabinet removed, inspect the latch bracket assembly that holds the door switches. Ensure it is not cracked or loose.
- Tighten any loose mounting screws and realign the bracket so the latch hooks fully depress the switches when the door is closed.
Repair: Replace any broken latch hooks or a damaged latch bracket with Commercial Chef-compatible parts. After reassembly, test door operation and verify that E9 no longer appears.
Repair Difficulty
Required Part
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