53
LG
LG air conditioner error 53
Meaning
Communication Error (Indoor ↔ Outdoor)
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Communication failure from outdoor unit to indoor unit
Models
LS091HSV, LS121HSV
How the unit shows it
- No. of Times Indoor Unit LEDs Blink LED1 (Heating LED): 5X
- No. of Times Indoor Unit LEDs Blink LED2 (Cooling LED): 3X
- No. of Times Outdoor Unit PCB LEDs Blink LED1 (Green): 5X
- No. of Times Outdoor Unit PCB LEDs Blink LED2 (Red): 3X
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
Guides
- Communication error between indoor and outdoor unit: what to check, in which order
Communication (transmission) error codes usually come from the connecting wire, the supply or a board. The checks from easy to hard.