P0
Gorenje Inverter Module or DC Bus Voltage Protection

P0 displayed; unit may not start compressor or may run at reduced capacity.

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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

Abnormal DC bus voltage on outdoor PCB, Loose DC bus connections, Faulty PFC (power factor correction) circuit, Power supply fluctuations

How to Fix / Troubleshooting

Safety: High DC voltages are present on the inverter board. Only qualified personnel should open the control box.

User-level:

  • Check that the supply voltage is stable and within the range specified on the Gorenje rating plate.
  • Avoid using the air conditioner on circuits shared with heavy loads that cause voltage dips.
  • Power cycle the unit for 10–15 minutes to clear transient faults.

Technician-level:

  • Measure DC bus voltage and inspect capacitors and rectifier.
  • Repair or replace the outdoor PCB if components are defective.
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Repair Difficulty

Professional Required 5/5

Required Part

Outdoor Inverter PCB
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