1
LG
LG air conditioner error 1
Meaning
Indoor room temperature thermistor open/short; Indoor pipe temperature thermistor open/short
Models
LSN090CE, LSN090HE, LSN120CE, LSN120HE, LSN180CE, LSN180HE, LSN240CE, LSN240HE, LSU090CE, LSU090HE, LSU120CE, LSU120HE, LSU180CE, LSU180HE, LSU240CE, LSU240HE
Meaning
Indoor unit return air thermistor has disconnected or has shorted out
Models
LS091HSV, LS121HSV
How the unit shows it
- No. of Times Indoor Unit LEDs Blink LED1 (Heating LED): 1X
- Error Display LED (Indoor body operation LED): 3sec 3sec 3sec (once)
Causes and how to check
- 1 checks in order
- the cited manual page, and follow-up questions
No account needed to look up codes.
Model series: LS
Guides
- Checking an air conditioner temperature sensor (thermistor)
How to check the room, coil or discharge sensor when the unit reports a sensor error: measure its resistance and compare with the exact model's table.