AUX ALCA-12-NHB Manual De Instalación Y Usuario página 59

5. TROUBLESHOOTING
5.1. T roubles and causes of air conditioner
If one of the following malfunctions occur, stop operation, shut
off the power, and contact with your dealer.
If the system does not properly operate except the above
mentioned cases or the above mentioned malfunctions is
evident, investigate the system according to the following
procedures.
Table 5-1 Error codes displayed on the receiver display of the indoor unit or on the wired remote control
Nº Code Unit
1 AA Indoor Communication failure of wire controller
A1 Indoor Indoor ambient temp sensor failure
2
3 A2 Indoor Indoor coil temp sensor failure
A3 Interior Fault with the liquid pipe temperature sensor on indoor unit
4
5 A4 Interior Fault with the gas pipe temperature sensor on indoor unit
A5 Indoor Drain pump failure
4
5 A6 Indoor Indoor fan motor failure
A8 Indoor Indoor unit EPROM failure
6
7 A9 Indoor Communication failure between indoor unit and outdoor unit
AJ Interior Fault with anti-Frozen protection of indoor unit in heating model
8
E5 Interior Communication failure of wired controller
9
Indoor Indoor high temp protection in heating
10 E8
Outdoor Overload protection in cooling mode
11 31 Outdoor IPM module protection (F0)
32 Outdoor IPM module hardware protection
12
13 33 Outdoor IPM module software protection
34 Outdoor Compressor unconnected
14
15 35 Outdoor Over power current protection
Over/low power voltage protection
16 36 Outdoor
Over/low main line voltage protection
37 Outdoor Outdoor module heat fins temp sensor failure
17
18 38 Outdoor Fault with the Compressor Power supply Phase deficiency protection
39 Outdoor IPM module protection
19
20 C1 Outdoor Outdoor ambient temp sensor failure
C2 Outdoor Outdoor coil temp sensor failure
21
C3 Outdoor Outdoor discharge temp sensor failure
22
23 C6 Outdoor Suction temp sensor failure
C8 Outdoor Outdoor defrost temp sensor failure
24
25 E3 Outdoor High discharge temp protection
FH Outdoor Low discharge temp protection
26
27 E1 Outdoor 4way-valve failure
F1 Outdoor Outdoor DC fan motor failure
28
29 F6 Exterior Fault with the low pressure
H1 Outdoor High pressure switch protection
30
31 H4 Outdoor Low pressure switch protection
Communication failure between the driver PCB and main PCB
32 J6 Indoor
of the indoor unit
J3 Outdoor Communication failure between PCB and IPM module
33
3H/5H Outdoor Communication failure between main PCB and DC fan motor module
34
J7 Outdoor Main control PCB EPROM failure
35
3E Outdoor DC inverter compressor running out of step
36
Please cut off the power supply when appearing the
above malfunction, check if the voltage provided is out of
range, check if the installation of air-conditioner is
correct, then electrify again after 3 minutes power off. If
the problem is still existent, please contact the local
service station or the equipment provider.
Description
59
CAUTION