Hisense Voltage Drop / Internal Power Instability

Display and lights flicker or reset when the heater turns on.

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 mains supply, Loose power cord connection, Failing internal power supply capacitor, Poor PCB solder joints

Safety first: Unplug the cooker before internal inspection.

Try another outlet: Use a different circuit to rule out household wiring issues.
Inspect power cord and plug: Replace if any damage or looseness is found.
PCB inspection: Remove the housing and inspect the power supply section for bulging capacitors or cracked solder joints. Resolder or replace components as needed.
Replace PCB: If instability persists, replace the main control board.

Hard 4/5

Main Control Board

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