-25-
High superheat and normal subcooling
13)
Low suction pressure and high
head pressure
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
13)
Both
evaporator
and
condenser
restricted;
liquid 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
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
Check for the condenser water flow
