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Source-backed error-code guide

Reviewed

Samsung mini-split CF Filter Reminder

CF is a maintenance reminder on the Samsung air conditioners covered by the reviewed support page. Confirm the exact model and regional manual, clean only the owner-accessible filter as instructed, and use only that model’s documented remote-control reset.

Applies to Samsung indoor air conditioners whose exact model documentation identifies CF as the filter-cleaning reminder

What the appliance detected

Detected condition

On an applicable Samsung indoor air conditioner, CF is a filter-cleaning reminder and filter-reset indicator, not proof of a component failure.

What may contribute

Possible causes

  • The applicable unit has reached its filter-cleaning reminder interval.
  • The owner-accessible filter is due for inspection, cleaning, or replacement under the exact model instructions.
  • The reminder has not yet been cleared with the model-specific remote-control procedure after filter care.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record CF and identify the exact unit

    • Photograph CF and record the complete indoor-unit model from an accessible label without opening a housing.
    • Confirm that the manual or Samsung support for the unit’s sales region identifies CF as this filter reminder.

  2. Use only the documented filter-care steps

    • Follow the exact manual’s shutdown and filter-removal instructions, and handle only the owner-accessible filter.
    • Clean or replace the filter only with the method and interval specified for that model; reinstall it completely before operation.

  3. Clear the reminder only as documented

    • Use only the exact model’s remote-control filter-reset procedure after filter care.
    • If CF remains, returns unexpectedly, or the unit operates abnormally, stop repeating resets and contact Samsung support or qualified HVAC service.

Actions not recommended

  • Do not assume CF has the same meaning on every Samsung air conditioner or in every region.
  • Do not open electrical or refrigeration housings, reach a filter that is not owner-accessible, or bypass a cover or protection.
  • Do not guess at remote button combinations, repeatedly reset the unit, wash a non-washable filter, or operate without the filter installed.

When to stop and request service

  • The exact model or regional manual does not confirm the CF meaning or filter procedure.
  • CF remains or returns after correctly completed, model-specific filter care and one documented reset.
  • Cooling or heating remains abnormal, the filter or housing is damaged, or smoke, sparking, a burning smell, water near electrical parts, or damaged wiring is present.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: September 20, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Samsung.

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