68
ro les ootin
Diagram 4:
Main test points:
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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.
Change control
board AP1
Errors declared?
Change
Compressor
End
Connected wires
End
Change
Compressor
Errors declared?
Change control
board AP1
Over fill refrigerant?
The input voltage
setting is normal.
The unit
heat dissipation is
bad.
Step out during the
operation
Check the outside fan
motor is normal.
Check the fan terminals
OFAN is connected.
Change fan motor
capacity C1
Change outside
fan motor
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