H3
Olimpia Splendid Compressor Overheat Protection

H3 error; unit shuts down; compressor very hot to touch

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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

Blocked coils or filters, Failing outdoor fan, Low refrigerant causing overheating, Faulty compressor thermal protector

How to Fix / Troubleshooting

Warning: The compressor and pipes can be extremely hot. Allow the unit to cool before touching.

  • Turn off and cool: Switch off the Olimpia Splendid unit and let it cool for at least 30 minutes.
  • Clean filters and coils: Ensure all filters are clean and both indoor and outdoor coils are free of dirt.
  • Check fan operation: Confirm that both fans run correctly. Repair any fan issues first.
  • Restart and monitor: After cleaning, restart and observe. If H3 returns quickly, a deeper refrigerant or compressor issue is likely.
  • Professional service: A technician should check refrigerant charge, compressor current draw, and the thermal protector.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Thermal Protector
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