E10
Balay Power Relay / Relay Driver Fault

Microwave displays E10 and will not start; interior light and fan do not activate when Start is pressed.

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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

Failed main power relay on control PCB,Defective relay driver transistor,Cold solder joints on relay pins,Control PCB track damage

How to Fix / Troubleshooting

Safety: Unplug the microwave before opening the cabinet.

User-level: There is no safe user repair for this error. Confirm that the wall outlet has power and that the plug is fully inserted. If other appliances work on the same outlet, the issue is internal.

Technician-level:

  • Remove the control PCB and visually inspect the main power relay and surrounding area for heat damage or cracked solder joints.
  • Resolder any cracked joints on relay pins.
  • Test the relay coil and contacts; replace the relay if it does not actuate or has burned contacts.
  • If the relay driver circuit is damaged, replace or repair the control PCB as per Balay guidelines.

Because this involves mains voltage switching, repairs should be performed by a qualified technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Power Relay (on Control PCB)
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