AUX ASW-H09B5B4/FAR3DI-C3, Service Manual

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8. Maintenance
8-1 Troubleshooting Guide
Many error codes many appears on this air conditionor, and this troubleshooting
guide is prepared for the maintenance personnel to detect the error position and the
parts to be replaced during the troubleshooting process. In this Guide, the
Troubleshooting Method is guided by the Error Name, and the Reference Code under
the General Index is the error code of the Indoor Unit of the mainstream model
supplied by the Company.
Example:
“Indoor Unit coil sensor error” is coded as E3 in the error code of the
Indoor Unit, but appears as flash-out via the trouble light of the Outdoor Unit machine.
However, their troubleshooting method is the same, and use the same table as well.
General index: fix speed air conditioners only involve E1, E2, E3 and E4
No. Error Name Reference Code
1 Overcurrent Protection of Indoor Unit E0
2
Indoor Unit temperature sensor error E1
3 Outdoor Unit coil sensor error E2
4 Indoor Unit coil sensor error E3
5
Indoor Unit motor error of wall mounted air
conditioner
（
PG motor
）
E4
6
Indoor Unit motor error of wall mounted air
conditioner
（
DC motor
）
E4
7
Indoor Unit and Outdoor Unit communication
error
E5
（
5E
）
8
Indoor EE Failure Eb
9
Outdoor Unit DC motor error (3-core terminal
motor)
F0
10 Module protection error F1
11 PFC protection error F2
12 Compressor startup error F3
13 Exhaust sensor error F4
14 Pressing top head sensor error F5
15 Outdoor Unit temperature sensor error F6
16 OVP or UVP error F7
17
Outdoor Unit main PCB and module panel
communication error
F8
18 Outdoor EE error F9
19
Recirculated sensor error
（
four-way valve switch
error
）
FA
20 High-pressure protection P2
21
Liquid Deficiency Protection P3