P0
Sencor
DC Bus Voltage Protection
Display shows P0, unit may limit operation or shut down.
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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
Supply voltage out of range, Faulty rectifier or PFC circuit on PCB, Loose power connections, Surge damage
How to Fix / Troubleshooting
Safety first: High DC bus voltages are present on inverter boards. Do not probe live circuits unless you are qualified.
- Step 1 – Verify mains voltage: Use a multimeter to confirm that the supply voltage is within the range specified by Sencor.
- Step 2 – Inspect power connections: With power off, tighten terminal screws and check the power cord and plug for damage.
- Step 3 – Surge protection: If P0 occurs after storms or power cuts, consider using a surge protector or voltage stabilizer.
- Step 4 – Professional PCB check: If P0 persists with correct supply voltage, the rectifier or PFC circuit on the PCB may be damaged and requires professional replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Power PCB
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