CH32 LG — Discharge Temperature Too High
At a glance
- Severity
- FAULT STOP
- Domain
- AIR_CONDITIONING_SYSTEM
- Reference standard
- EN 378 / EN 60335-2-40
- Product / context
- Discharge Temperature Too High
What it means
Compressor discharge temperature exceeds the permitted limit and the controller stops operation to protect oil and windings.
Probable causes
- Low refrigerant charge with excessive superheat
- Poor heat rejection at the condenser side
- Faulty or badly fixed discharge sensor
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
- CH01 — Room Temperature Sensor Fault
- CH05 — Indoor Unit Communication Error
- CH22 — Compressor Overcurrent / Overload Protection
- 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