LG Ac E5 Error Code: Causes and Fixes
Quick answer: Current overload protection
What you’ll notice
Compressor shuts off; current has exceeded the protection threshold.
LG
Ac
Code E5
medium severity
LG models: LG Dual Inverter compressor models run continuously at variable speed rather than cycling on/off — sustained low-level operation is normal. The washable filter slides out from the top-rear of the indoor unit housing.
Common causes
- Compressor starting under high load in hot weather
- Capacitor failing — not providing start boost to compressor
- Refrigerant overcharge increasing compressor load
- Compressor beginning to fail
Step-by-step fix
- Turn the unit off for 30 minutes to allow the compressor to cool.
- Test the run/start capacitor — a failing capacitor bulges at the top.
- Restart and monitor current draw if you have a clamp meter.
Tools you may need
Screwdriver setClamp meter (optional)
Prevention
- Replace capacitors proactively if the unit is over 8 years old.
- Service the refrigerant charge every 2–3 years.
When to stop DIY
Call an HVAC technician for refrigerant charge issues or compressor diagnosis.
FAQ
What does E5 mean on LG ac?
E5 usually indicates: Current overload protection.
Can I keep using the appliance with E5?
Use caution. Severity is medium. Call an HVAC technician for refrigerant charge issues or compressor diagnosis.
How long does this fix usually take?
Typical first-pass troubleshooting takes 30–45 minutes.