98
Faul
t
cod
e
Fault Description Possible Reason of Abnormality How to Deal With REMARKS
failure;
3.The sampling circuit is abnormal.
sensor;
3.Replace the outdoor control board.
18 AC voltage is abnormal
1.The AC voltage>275V or <160V.
2.The AC voltage of sampling circuit on the
driver board is abnormally
1. Normally protection, please check
the supply power;
2. Replace the driver board.
MUTI-SPLIT
TYPE ONLY
19
Suction temperature sensor
fault
1.The wiring of the suction temperature
sensor connect loose;
2. The suction temperature sensor is failure;
3. The sampling circuit is abnormally
1.Reconnect the wiring of the suction
temperature sensor;
2.Replace the suction temperature
sensor;
3.Replace the outdoor control board.
20
The temperature sensor for the
inlet tube of the condenser fault
1.The wiring of the temperature sensor for the
inlet tube connect loose;
2.The temperature sensor for the inlet tube is
failure;
3.The sampling circuit is abnormally
1.Reconnect the wiring of the
temperature sensor for the inlet tube of
the condenser;
2.Replace the temperature sensor for
the inlet tube of the condenser;
3.Replace the outdoor control board.
21
The outlet tube of the
condenser temperature sensor
fault
1.The wiring of the temperature sensor for the
outlet tube connect loose;
2.The temperature sensor for the outlet tube
is failure;
3.The sampling circuit is abnormally
1. Reconnect the wiring of the
temperature sensor for the outlet tube
of the condenser.
2.Replace the temperature sensor for
the outlet tube of the condenser;
3.Replace the outdoor control board.
22 The defrosting sensor fault
1.The wiring of the defrosting sensor connect
loose;
2.The defrosting sensor is failure;
3.The sampling circuit is abnormally
1. Reconnect the wiring of the
defrosting sensor;
2. Replace the defrosting sensor;
3. Replace the outdoor control board.
23
Expansion valve A tube(thin)
sensor fault
1. The wiring of the sensor for the expansion
valve A(thin tube) connect loose;
2.The sensor for the expansion A(thin tube) is
failure;
3. The sampling circuit is abnormally
1. Reconnect the wiring of the sensor
for the expansion valve A(thin tube);
2. Replace the sensor for the
expansion valve A(thin tube);
3. Replace the outdoor control board.
FOR
MUTI-SPLIT
&Inverter
unitary types
24
Expansion valve B (thin)tube
sensor fault
1. The wiring of the sensor for the expansion
valve B ( thin tube )connect loose;
2.The sensor for the expansion valve B(thin
tube) is failure;
3.The sampling circuit is abnormally
1.Reconnect the wiring of the sensor
for the expansion valve B(thin tube);
2.Replace the sensor for the expansion
valve B(thin tube);
3. Replace the outdoor control board.
FOR
MUTI-SPLIT
outdoor
25
Expansion valve C (thin)tube
sensor fault
1. The wiring of the sensor for the expansion
valve C(thin tube) connect loose;
2.The sensor of the expansion valve C(thin
tube)is failure;
3.The sampling circuit is abnormally
1. Reconnect the wiring of the sensor
for the expansion valve C(thin tube);
2. Replace the sensor for the
expansion valve C(thin tube);
3. Replace the outdoor control board.
FOR
MUTI-SPLIT
outdoor