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• 🔧 Typical inverter faults (short version for manual/drawing)

  Unit starts → stops
  Possible cause: inverter protection, sensor fault, low voltage or overheating.

  Fan runs but no compressor
  Possible cause: faulty inverter board or no signal to compressor.

  Compressor pulses or starts briefly
  Possible cause: inverter module fault, low voltage or temperature sensor issue.

  Unstable operation / fluctuating output
  Possible cause: NTC temperature sensor, humidity sensor or control board fault.

  Unit completely dead
  Possible cause: damaged inverter board, power surge or moisture damage.

  Common spare parts

  • Inverter/power board

  • Temperature sensor (NTC)

  • Humidity sensor

  • Fan motor

  • Compressor

  Quick check:
  Disconnect power for 2 minutes, restart, check fan operation and listen for compressor.

  Air filter

• Condensate pump (if fitted)

• Display/control panel

• Power switch or power cable

We stock the most commonly requested spare parts.
Please state model and spare part number when enquiring.