Symptoms
The compressor runs continuously or for long periods
Likely Cause
- Insufficient refrigerant gas charge
- Thermostat contacts blocked in the closed position
- System insufficiently sized for the charge
- Excess charge to be cooled or insufficient insulation
- Evaporator covered with ice
- System circuit restriction
- Condenser blocked
Remedy
- Repair any leaks and add refrigerant gas
- Replace the thermostat
- Replace the system with a more powerful one
- Reduce the charge or improve the insulation
- Defrost
- Identify the cause and remove it
- Clean the condenser
