LG LS091HSV3 Installation Manual page 72
Single zone high efficiency, standard, extended pipe, and mega wall mounted
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Also See for LS091HSV3:
- Owner's manual (102 pages) ,
- Installation manual (86 pages) ,
- Engineering manual (76 pages)
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TROUBLESHOOTING
Error Codes
Single Zone Wall Mounted Outdoor Unit Error Codes
The Single Zone Wall Mounted outdoor unit error codes are visible on the outdoor unit, as well as from the indoor unit. However, the indoor
unit error codes are only visible from the indoor unit and will not display at the outdoor unit. When troubleshooting the system, be sure to
verify if the error codes that are being displayed are specific for indoor or outdoor units.
Table 36: Single Zone Wall Mounted Outdoor Unit Error Codes
Error
Code
21
DC Peak (IPM Fault); Compressor DC voltage was too high
22
Current Transformer2 (CT2) error; Alternating current (AC) input too high
23
DC Link Low Volt
25
AC Low/High Volt
26
DC Comp Position Error (not providing rotation), Locking
27
PSC Fault; Current to inverter compressor between AC and DC converter circuit too high
28
Inverter compressor DC voltage is too high
29
Inverter compressor amperage is too high
31
Current-to-current transformer (CT) thermistor is too low
32
Inverter Compressor Discharge Pipe (D-Pipe) Overheat
40
CT Sensor Error; Thermistor is disconnected or is shorted out
41
D-Pipe Sensor INV is disconnected or shorted out
44
Outdoor Air Sensor is disconnected or shorted out
45
Middle thermistor of outdoor unit condenser coil is disconnected or shorted out
46
Outdoor unit suction line thermistor is disconnected or shorted out
48
Outdoor unit coil outlet (liquid line) thermistor is disconnected or shorted out
53
Communication failure from outdoor unit to indoor unit
60
Outdoor unit printed circuit board (PCB) EPROM check sum error
61
Outdoor unit condenser coil temperature is too high
62
Outdoor unit inverter compressor PCB heat sink temperature is too high
63
Condenser coil pipe thermistor temperature is too low
65
Heat sink thermistor has disconnected or has shorted out
67
Outdoor brushless direct current (BLDC) fan motor lock error
Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds.
72
Description
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
No. of Times Outdoor Unit
LEDs Blink
LED1
LED2
(Plasma LED)
(Power LED)
2X
2X
2X
2X
2X
2X
2X
2X
3X
3X
4X
4X
4X
4X
4X
4X
5X
6X
6X
6X
6X
6X
6X
1X
2X
3X
5X
6X
7X
8X
9X
1X
2X
-
1X
4X
5X
6X
8X
3X
-
1X
2X
3X
5X
7X
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