7.TROUBLE SHOOTING
between the
outdoor control
board and the
drive board has
in trouble
2.The cable between the control board and
the drive board is failure;
3.The drive board is failure
4.The control board is failure
2.Replace the communication cable
between the control board and the
drive board;
3.Replace the drive board;
4.Replace the control board.
47
discharge
temperature too
high fault
1. The refrigerant of the unit is not enough;
2.The refrigerant of the unit is not enough
due to add the length of the installation pipe
3.Throttling service is failure;
4.The outdoor ambient temperature is too
high
1.Check the welding point to confirm
whether the unit has exist leakage
point, and then add some refrigerant.
2.Add some refrigerant refer to the
installation user manual;
3.Replace the throttling service(such
as capillary, expansion valve)
4. Normally protection.
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