Service manual

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GB
12. Over current protection of compressor
1) The air conditioner stop running immediately and display error code �hen input
current more than or equal to Imax.
2) The compressor decrease 2Hz per 3 seconds until input current less than or equal to
(Imax-13) �hen the input current more than (Imax-13).
3) The compressor decrease 1Hz per 3 seconds until input current less than or equal to
(Imax-16) �hen the input current more than (Imax-16).
4) It resume normal frequency �hen the input current less than or equal to (Imax-20).
13.DC voltage of �ire protection
1) The air conditioner stop running and display DC voltage abnormal �hen it less than
260V.
2) The compressor decrease frequency and display FA6 �hen DC voltage less than 285V.
3) The air conditioner resume normal running �hen DC voltage more than 290V.
Outdoor unit fault of indoor unit display
Fault Display
Transducer module protection P2
Over current P3
Discharge temperature of compressor overheat,
ambient temperature overheat
P4
DC voltage of outdoor unit abnormal P7
Leakage or reverse valve fault P8
Outdoor sensor fault F6
Compressor drive fault FC
WARNING!!!
When Po�er Up – the �hole outdoor unit controller, including the �iring, is under HIGH
VOLTAGE!!!
Never open the Outdoor unit before turning off the Po�er!!!
When turned off, the system is still charged (400V)!!!
It takes about 3 Min. to discharge the system.
Touching the controller before discharging may cause an electrical shock!!!
For safe handling of the controller please refer to section 1.6 belo�.
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