Samsung Air Conditioner Cl Error Code

Auto Clean running. Here is what it means and how to clear it, easiest fix first.

Easy DIY fix

Cl (sometimes read as CI or CL) means the Auto Clean feature is on. It runs a cleaning cycle inside the indoor unit after you switch the unit off, to help keep musty smells down, and it is not a fault.

Shown on wall-mount units with Auto Clean. Samsung suggests running Auto Clean if the indoor unit has started to smell. These meanings come from Samsung's support pages for markets outside the US (such as the UAE, India, Malaysia and the Philippines); codes and display formats vary by model and region, so check your owner's manual.

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 Samsung Cl

Let it finish
Auto Clean runs after the unit is switched off with the remote. Leave it to complete; you don't need to do anything.
Turn the feature off if you prefer
If you don't want Auto Clean, switch it off from the remote. On some models you press Options, select Clean and press SET; check your manual for your model.

When to call a technician

No repair is needed. If the unit smells even with Auto Clean on and clean filters, have the indoor coil and drain pan professionally cleaned.

Other Samsung air conditioner codes

Frequently asked questions

What does Cl mean on a Samsung air conditioner?

Can I fix Samsung Cl myself?

Usually, yes. Most Cl problems clear with simple checks you can do at home. Start with the first step above: let it finish.

What if Cl keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when Cl appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

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

References