E15
Polaris
Internal Power Supply Voltage Error
E15 appears and the cooker may shut down unexpectedly during operation.
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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 low-voltage power supply on main board, Shorted component drawing excess current, Loose mains input connector, Faulty line filter or varistor
How to Fix / Troubleshooting
Safety first: This fault involves mains voltage. If you are not experienced with electronics, seek professional service. Always unplug before opening.
- Check mains cord and plug: Inspect for damage, burns, or loose connections at the entry point.
- Inspect power supply section: On the main board, look for burnt components, cracked resistors, or bulging electrolytic capacitors in the power supply area.
- Measure output voltages: If qualified, measure the low-voltage outputs (e.g., 5 V, 12 V) from the power supply section. Deviations beyond ±10% indicate a failing supply.
- Board replacement: In most cases, replacing the entire main control board is more practical than component-level repair.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (Power Supply Section)
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