-24-
High superheat and high subcooling
14)
Low
suction pressure and high head
pressure
High superheat and high subcooling
15)
low to normal suction pressure and high
head pressure
Normal to high superheat and
high subcooling
and suction lines
connected wrong
14)
Liquid line restricted
before receiver
15)
Condenser restricted
11. Condensing Unit Troubleshooting
Unit not running
1) Incorrect power supply
2) Incorrect or loose wirings
3) Failed components
4) Low pressure switch shutting down the
system
5) high pressure switch shutting down the
system
1) Check for proper voltage
2) Check
all
wirings
and
connections
3) Check start relay, start capacitor, overload
protector, compressor.
4) Check for system restriction or low
refrigerant
5) Check for the condenser water flow
