PROBLEM - HIGH COMPRESSOR DISCHARGE PRESSURE
There is an internal restriction in the
Replace the condenser.
condenser. (Ice buildup on the
condenser or a cool spot on the line
from the condenser to the receiver-
Air is present in the system.
Repair any leaks, evacuate the system, and add a full charge of
Restriction in the compressor
Repair or replace the line.
- EVAPORATOR OUTLET AIR TEMPERATURE INCREASES AS COMPRESSOR
DISCHARGE PRESSURE DROPS
The expansion valve setting is too
Replace the expansion valve. Add a full charge of refrigerant.
PROBLEM - COMPRESSOR OPERATES TOO OFTEN OR CONTINUOUSLY
There is too little refrigerant in the
Repair any leaks, and add a full charge of refrigerant.
There is a restriction in the
Remove the restriction from the line.
The thermostatic switch operates,
Replace the thermostatic switch. Do not attempt to adjust it.
but is out of adjustment.
Loss of refrigerant is causing a
Add a full charge of refrigerant.
delayed cycling of the compressor.