LG · Air conditioners
LG Air Conditioner CH04 / FL: Condensate needs draining or the drain system needs attention
THE SHORT ANSWER
Condensate needs draining or the drain system needs attention
CH04 / FL indicates condensate needs draining or the drain system needs attention. Identify whether the unit is portable, window-mounted or a ceiling system.
Identify whether the unit is portable, window-mounted or a ceiling system.
Keep covers fitted. Refrigerant, wiring and fan repairs require a qualified technician.
WHAT YOU MAY NOTICE
Symptoms to record
- The display shows CH04 / FL.
WORK THROUGH THE BASICS
Safe troubleshooting checks
Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.
On a portable/window model, turn off and unplug before using the manual’s condensate drain port with a suitable pan. For ceiling units or persistent errors, request service.
What to noteUse the result to decide whether the issue is resolved or needs service.
THE DETAILS MATTER
Scope & troubleshooting notes
Interpret this code in context
High humidity can fill a portable unit’s water collection area. A ceiling-unit drainage fault is not solved by applying portable-tank instructions.
YOUR NEXT DECISION
When to stop and get help
Contact LG service if this indication returns or the appliance cannot resume normal operation.
THE EVIDENCE
Sources & verification
Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.
- LG Air Conditioner — Guide to Error Codes
LG USA · Manufacturer support · Checked
Error-code troubleshooting; relevant display identified in the article — LG room and split air conditioners; match portable/window versus split-system scope.