E15
Balay
Internal Self-Test Failure
Microwave shows E15 and may emit a continuous or repeated beep; no cooking functions can be started.
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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
Control PCB hardware fault,Memory or processor error,Corrupted configuration data,Failed low-voltage power supply on PCB
How to Fix / Troubleshooting
User-level:
- Disconnect power for 10–15 minutes and reconnect to see if the error clears.
- If E15 reappears immediately, internal electronics are likely damaged.
Technician-level:
- Measure low-voltage outputs from the control PCB's power supply section (e.g., 5 V, 12 V) and verify stability.
- Inspect for burned components, bulging capacitors, or cracked solder joints.
- If the board fails self-test consistently, replace the main control PCB.
Due to the complexity of microcontroller-based boards, component-level repair is usually not recommended outside authorized service centers.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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