58
COMPRESSOR CUT-OUT
COMPRESSOR CUT-OUT
Compressor discharge
temperature within limits?
Unit working
NO
Check parameters, e.g.:
superheating, refrigerant
charge, etc.
YES
Notes
1) Measure, using a thermometer in direct contact, the temperature of the compression line at the position of the compressor
safety thermostat. A correct refrigerant charge corresponds to a maximum temperature of 85°C/90°C.
Higher temperatures mean excessive superheating of the inlet gas; check the right operation of the expansion device.
2) The thermostat inside the compressor is activated at a temperature of around 135°C. Temperatures lower than 100°C must
correspond to a closed contact and the enabling of the operation of the compressor.
FAN OVERLOAD
FAN OVERLOAD
Motor intact?
Unit working
NO
Check for possible
blockages on exchanger
Check the blades are not
obstructed
YES
Check electric windings
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