AUX ARV Series Technical Manual

AUX-DC inverter ARV outdoor unit individual series technical manual
127
Indoor unit temperature sensor is abnormal.
4.Outdoor unit error code explanation
4.1 Temperature or pressure sensor failure
Code
Error code definition
Recovery
or not
Possible reason
C1
Ambient temperature
sensor failure
Yes
1. Temperature sensor is broken.
2. Test temperature exceeds limit.
3. Sensor connection is incorrect.
4. Outdoor unit PCB failure.
C2
Defrosting temperature
sensor failure
Yes
C3
Discharge temperature of
inverter compressor failure
Yes
C6
Suction temperature of
compressor failure
Yes
37
Temperature sensor of
inverter module failure
No
F1
High pressure sensor
failure
Yes
1. High pressure sensor is broken.
2. Low pressure sensor connection is incorrect.
3. Outdoor unit PCB failure
F4
Low pressure sensor
failure.
Yes
1. Low pressure sensor is broken.
2. The connection between sensor and outdoor PCB incorrect
3. Outdoor unit PCB failure
H1
High pressure switch failure
No
1. The stop valve on high pressure side is not opened normally.
2. Outdoor fan motor is failed.
3. Outdoor heat exchanger is dirty.
4. In heating mode indoor fan stop
5. In heating mode indoor EXV can’t open normally.
H4
Low pressure switchfailure
Yes
1. The stop valve on suction side is closed
2. In cooling mode indoor EXV is closed or blocked
3. In heating mode outdoor unit EXV is closed or blocked
4. In heating mode outdoor unit fan stop
5. In heating mode outdoor unit air outlet block

AUX ARV Series Specifications

General

Brand	AUX
Model	ARV Series
Category	Air Conditioner
Language	English