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Samsung Air Conditioner CF Error Code

Filter cleaning reminder. What it means, which models show it, and how to clear it, easiest fix first.

SamsungAll Samsung air conditioner codes

CF
Easy DIY fix

CF is a reminder that the indoor unit's air filters are due for cleaning, not a fault. Dirty filters cut airflow, which can make the unit less effective at holding the set temperature. Samsung suggests cleaning the filters about every two weeks, or whenever CF appears.

Compatible models

Samsung doesn't publish a model list for this code; it appears on Samsung air conditioners with a digital display. Check your owner's manual.

Also shown as

Shown on wall-mount indoor units. 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.

Difficulty

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

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 CF

  1. Switch off and remove the filters

    Turn the unit off with the remote and switch off its breaker. Open the front panel or grille and slide the filters out.

  2. Clean the filters

    Vacuum or brush off loose dust, then wash the filters in lukewarm water with a little mild detergent. Rinse and let them air-dry fully out of direct sun before refitting.

  3. Reset the reminder

    Restore power and clear CF from the remote. On some Samsung remotes you press Options, choose Filter Reset and press SET, but the buttons differ by model, so check your manual.

When to call a technician

CF is maintenance only. If the unit still cools or heats poorly with clean filters, contact Samsung service.

Parts linked to CF

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does CF mean on a Samsung air conditioner?

CF is a reminder that the indoor unit's air filters are due for cleaning, not a fault. Dirty filters cut airflow, which can make the unit less effective at holding the set temperature. Samsung suggests cleaning the filters about every two weeks, or whenever CF appears.

Which Samsung models show the CF code?

Samsung doesn't publish a model list for this code; it appears on Samsung air conditioners with a digital display. Check your owner's manual.

Can I fix Samsung CF myself?

Usually, yes. Most CF problems clear with simple checks you can do at home. Start with the first step above: switch off and remove the filters.

What if CF keeps coming back?

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

Other Samsung air conditioner codes

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

Sources we checked