-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
