21
LG
LG air conditioner error 21
Meaning
IPM Fault (Compressor Over current)
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
DC peak error / IPM fault; compressor DC voltage was too high
Models
LS091HSV, LS121HSV
How the unit shows it
- No. of Times Indoor Unit LEDs Blink LED1 (Heating LED): 2X
- No. of Times Indoor Unit LEDs Blink LED2 (Cooling LED): 1X
- No. of Times Outdoor Unit PCB LEDs Blink LED1 (Green): 2X
- No. of Times Outdoor Unit PCB LEDs Blink LED2 (Red): 1X
Causes and how to check
- 1 possible causes
- the cited manual page, and follow-up questions
No account needed to look up codes.
Model series: LS