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LG Air Conditioner CH07 Error Code

Indoor units set to conflicting modes on LG air conditioners.

LGAll LG air conditioner codes

CH07
Easy DIY fix

On a multi-zone system, one indoor unit wants heat while another is set to cool or dry. They all share one outdoor unit, which can't heat and cool at once, so it raises this code.

Compatible models

LG multi-zone heat pumps where several indoor heads (wall, floor or ceiling type) share one outdoor unit.

Also shown as

No other codes are listed for this fault.

Difficulty

Most people can clear this one at home with simple checks.

Not sure you are reading the code right? See how to read LG air conditioner codes.

Safety first: unplug the air conditioner (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix LG CH07

  1. Match the modes

    Check the mode on every indoor unit in the house. Set them all to heat, or all to cool or dry. Cool and dry can run together, but neither can run while another unit heats.

  2. Use fan or air purify if needed

    If a room only needs air moving, put that unit on Fan or Air Purification. LG says those modes can run alongside anything else.

When to call a technician

This is a settings conflict, not a fault. If the code stays once every unit is on a compatible mode, reset the power and contact LG support.

Step-by-step guides for this problem

Frequently asked questions

Which LG models show the CH07 code?

LG multi-zone heat pumps where several indoor heads (wall, floor or ceiling type) share one outdoor unit.

Can I fix LG CH07 myself?

Usually, yes. Most CH07 problems clear with simple checks you can do at home. Start with the first step above: match the modes.

Other LG air conditioner codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked