R-Pro › Field cases › Air conditioning
Inverter Overheating from Overload Operation
Likely causes
Compressor overloaded from refrigerant overcharge
Check: Measure ambient temperature (confirm below 43°C)
What to do: Measure ambient temperature (confirm below 43°C) → Measure high/low side pressures → Check for refrigerant overcharge (measure subcooling) → Clean condenser and check fan → Improve machine room ventilation
High compression ratio from elevated head pressure
Check: Measure high/low side pressures
What to do: Measure high/low side pressures → Check for refrigerant overcharge (measure subcooling) → Clean condenser and check fan → Improve machine room ventilation
Ambient temperature too high (above 43°C)
Check: Check for refrigerant overcharge (measure subcooling)
What to do: Check for refrigerant overcharge (measure subcooling) → Clean condenser and check fan → Improve machine room ventilation
Heat sink is clean but inverter is overheating. Eliminate the compressor overload cause.
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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