7
7
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
DC INVERTER AIR CONDITIONER TECHNICAL& SERVICE MANUAL V3.3
102
Fault
code
Fault Description
Possible Reason of Abnormality
How to Deal With
REMARKS
96
the refrigerant of the unit is not
enough fault
The refrigerant of the unit is not enough
Discharge the refrigerant and charge
the refrigerant refer to the rating label
VRF
97
4-way valve commutation
failure fault
1.The wiring of the 4-way valve coil connect
loose;
2.The 4-way valve coil is failure;
3.The 4-way valve is failure;
4.The driver board of the 4-way valve is
failure
1. Reconnect the wiring of the 4-way
valve;
2. Replace the 4-way valve coil;
3. Replace the 4-way valve;
4.Replace the driver board of the
4-way valve.
FOR
VRF&inverte
r unitary
types
