Sage Door-Induced Power Interruption

Microwave clock and settings reset whenever the door is opened or closed.

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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

Loose mains connection, intermittent internal fuse or thermal cut-out, shorting door switch, cracked solder joint on control PCB

How to Fix / Troubleshooting

Safety: Unplug the microwave before inspecting the door area or internal wiring.

User-level checks:

  • 1. Observe behavior: Note whether the display flickers exactly when the door moves, suggesting a mechanical link.

Technician-level checks:

  • 2. Inspect door switches and wiring: Look for chafed wires near the door latch that may short when the door moves.
  • 3. Check fuse and thermal cut-outs: Ensure they are firmly seated and not loose in their holders.

This fault can worsen and cause complete power loss; professional diagnosis is recommended.

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Repair Difficulty

Hard 4/5

Required Part

Door Switch Wiring / Line Fuse Holder
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