Hitachi RCI-3.0UNE1NH - Overload Protection Faults (Heating)

2
2
.
.
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
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
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.
24