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
Summary of Contents for ANB66FVAMT
Page 1: ...AUX DC inverter ARV individual series 1 Technical Manual DC Inverter ARV Individual Series ...
Page 3: ...AUX DC inverter ARV individual series 3 ...
Page 19: ...AUX DC inverter ARV outdoor unit individual series technical manual 16 ...
Page 21: ...AUX DC inverter ARV outdoor unit individual series technical manual 18 ...
Page 96: ...AUX DC inverter ARV outdoor unit individual series technical manual 93 ...
Page 113: ...AUX DC inverter ARV outdoor unit individual series technical manual 110 ...
Page 127: ...AUX DC inverter ARV outdoor unit individual series technical manual 124 ...