What it means
Samsung's support pages describe CF as a 'Filter cleaning reminder or Filter reset indicator'.
What to check, in order
- Switch the unit off
Turn the air conditioner off with the remote before you take the filters out.
- Clean the filters
Samsung's support page says to clean or replace the inner filters of the indoor unit. Your user manual shows how to unclip them on your model.
- Clear the reminder
With the filters back in, Samsung says to clear the CF reminder using the remote control. The user manual lists the button for your model.
- Keep to a routine
Samsung recommends cleaning the filters every 2 weeks, or whenever CF appears.
When to call an engineer
No engineer needed. If CF comes straight back after cleaning and resetting, check the user manual for the reset steps on your remote.
Quick answers
What does the Samsung CF error code mean?
The air conditioner is reminding you to clean the air filters. It is not a fault, but dust on the filters cuts airflow and can affect temperature and noise. Samsung's support pages describe CF as a 'Filter cleaning reminder or Filter reset indicator'.
Can I fix Samsung CF myself?
Very easy (about 15 minutes). Start with: switch the unit off; clean the filters; clear the reminder. No engineer needed. If CF comes straight back after cleaning and resetting, check the user manual for the reset steps on your remote.
Is Samsung CF worth repairing?
Usually free. Cleaning the filters and clearing the reminder is all it needs.
Checked against
- Samsung Gulf support: Error codes on Samsung indoor air conditioner
- Samsung Philippines support: Check out the displayed error codes on the indoor unit air conditioner
- Samsung Malaysia support: Error codes frequently displayed on the indoor unit air conditioner
Last reviewed October 2026. Manufacturers update their pages, and your manual is the final word. Spotted a mistake? Email contact@appliance-error-codes.com.