CH01 LG — Room Temperature Sensor Fault
At a glance
- Severity
- WARNING THEN STOP
- Domain
- AIR_CONDITIONING_SYSTEM
- Reference standard
- EN 60335-2-40
- Product / context
- Room Temperature Sensor Fault
What it means
The room sensor reports an out-of-range or incoherent value and the controller cannot regulate capacity correctly.
Probable causes
- Open or shorted NTC room sensor
- Loose connector on the indoor board
- Sensor affected by recirculated air or incorrect placement
Reference values
| NTC 10k 25C resistenza kohm | {"-10C":"55.3","0C":"32.6","10C":"19.9","20C":"12.5","25C":"10.0","30C":"8.06","40C":"5.32","60C":"2.49"} |
|---|---|
| nota | Typical 10 kΩ B3950 NTC table: always compare with the manufacturer table. |
Full guided diagnosis in the app
The diagnostic tree for this fault has 3 guided steps with measurements, checks and resolutions. You'll find it in HVACIQ, one of the five IndexOS apps: free, works offline.
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The same fault on other brands
More LG codes
- CH05 — Indoor Unit Communication Error
- CH22 — Compressor Overcurrent / Overload Protection
- CH32 — Discharge Temperature Too High
- CH34 — High Pressure Alarm / HP Lockout
- CH35 — Low Pressure Alarm / LP Lockout
- CH67 — Outdoor Fan Motor Fault
- CH05 — Refrigerant addressing error
- CH32 — Capacity unbalance between circuits