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Back to Error CodesHIGH

H0: Compressor Sensor Error (Daikin)

Daikin heat pump compressor temperature or pressure sensor has failed.

What This Error Code Means

A sensor monitoring compressor conditions is providing invalid data to the control system.

Common Causes

  • Sensor wiring damaged
  • Compressor discharge thermistor failed
  • Pressure transducer failure
  • Connector corrosion
  • Control board input circuit fault

Affected Brands

Daikin

How ROMA Heating Fixes This

  • Check sensor wiring for damage
  • Measure sensor resistance values
  • Test pressure transducer output
  • Replace failed sensor
  • Verify compressor protection circuit

Why Trust ROMA Heating

24/7 Emergency

True round-the-clock service including weekends and holidays

Licensed Technicians

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Fast Diagnosis

We know exactly how to interpret and resolve error codes

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