Black+Decker Intermittent power or control board reset

Microwave clock resets to 0:00 or 12:00 randomly without a known power outage.

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

Loose power cord connection, Faulty wall outlet, Failing control board power supply, Internal wiring issue

Safety first: Unplug the microwave before internal inspection.

Verify outlet stability:
- Test the outlet with another device for flickering or resets.
- Try a different outlet on a separate circuit.
Check power cord:
- Inspect for damage or looseness at the strain relief.
Internal check (if qualified):
- Remove the outer cabinet.
- Inspect the line filter board and wiring harness for loose connections.

If the issue persists, the control board may be resetting due to internal failure and should be replaced.

Medium 3/5

Main Control Board (PCB)

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