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
108
Fault
code
Fault Description
Possible Reason of Abnormality
How to Deal With
REMARKS
81
Indoor ambient
Temperature Sensor Fault
1. The cable of the room temperature
sensor connect loose;
2. The room temperature sensor is
failure;
3. The sampling circuit is abnormally
1.Reconnect the cable of the room
temperature sensor;
2. Replace the room temperature
sensor;
3. Replace the indoor control board.
82
Evaporator Inlet
Temperature Sensor Fault
1.The cable of the coil temperature
sensor
of the evaporator is failure;
2. The coil temperature sensor of the
evaporator is failure;
3. The sampling circuit is abnormally
1.The cable of the coil temperature sensor
of the evaporator is failure;
2. The coil temperature sensor of the
evaporator is failure;
3. The sampling circuit is abnormally
83
Evaporator Middle
Temperature Sensor Fault
1.The cable of the coil temperature
sensor
of the evaporator is failure;
2. The coil temperature sensor of the
evaporator is failure;
3. The sampling circuit is abnormally
1. Reconnect the cable of the coil
temperature sensor of the
evaporator;
2. Replace the coil temperature
sensor of the evaporator;
3. Replace the indoor control board.
84
Evaporator outlet
Temperature Sensor Fault
1.The cable of the coil temperature
sensor
of the evaporator is failure;
2. The coil temperature sensor of the
evaporator is failure;
3. The sampling circuit is abnormally
1. Reconnect the cable of the coil
temperature sensor of the
evaporator;
2. Replace the coil temperature
sensor of the evaporator;
3. Replace the indoor control board.
85
Wiring Remote Controller
Sensor Fault
1. The temperature sensor of the
wiring
controller is failure;
2. The sampling circuit of the wiring
controller is failure
1. Replace the wiring controller;
2. Replace the wiring controller
86
Air outlet temperature
sensor fault
1. The cable of the temperature sensor
of
the air outlet connect loose;
2. The temperature sensor of the air
outlet
is failure;
3. The sampling circuit is abnormally
1.Reconnect the cable of the
temperature sensor of the air outlet;
2. Replace the temperature sensor of
the air outlet;
3. Replace the indoor control board.
87
The inlet of water
side entrance temperature
sensor fault
1. The cable of the temperature sensor
of
the inlet of water side is failure;
2. The temperature sensor of the inlet
of
water side is failure;
3.The sampling circuit is abnormally
1. Reconnect the able of the
temperature sensor of the inlet of
water side;
2. Replace the temperature sensor of
the inlet of water side;
3. Replace the indoor control board.
