Hyundai HRP-S09WH Service Manual page 65

Troubleshooting Troubleshooting
Diagram 4:
Main test points:
● Check the system pressure is high.
● Check the voltage is low.
Step out problem happen
after power on
Check the
compressor stop
more than 3 mins
Check the compressor wire
COMP(UVW) is connected.Make sure
chronological connection.
Connected wires
Change control
board AP1
Errors declared?
Change
Compressor
End
62
Step out during the
operation
Check the outside fan
motor is normal.
The unit
heat dissipation is
bad.
The input voltage
setting is normal.
Over fill refrigerant?
Change control
board AP1
Errors declared?
Change
Compressor
End
Check the fan terminals
OFAN is connected.
Improve heat dissipation for
unit( such as heat exchanger
clearance strengthen
ventilated
Please recovery the
power to normal voltage
before start
Add the refrigerant by the
technical service manual
Change fan motor
capacity C1
Change outside
fan motor