Microwave intermittently shows E92; clock resets or loses time.

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

Weak backup capacitor or battery on control board, Power interruptions, Faulty main control board RTC circuit

Safety: Unplug the unit before any internal work.

User-level steps:

Check power stability: Ensure the microwave is on a stable circuit without frequent outages or tripped breakers.
Reset clock: After any power loss, reset the clock and monitor if E92 recurs without outages.

Technician-level steps:

Inspect the main control board for a backup capacitor or battery and test its capacity if serviceable.
If the RTC or backup circuit is defective and not serviceable separately, replace the main control board.

Medium 3/5

Main Control Board

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