Perform a self diagnostic test on your Samsung Air conditioner

Last Update date : Nov 28. 2023
A Samsung Air conditioner is displayed above a table holding different objects

If you think there is an issue with your Samsung Air conditioner, you can use Smart Install mode to perform a diagnostic test. This will determine if there is an operational or installation issue with your Air conditioner, which will be represented by a numerical error code on the Air conditioner’s display panel.

Note: Smart Install mode may not be available on some Air conditioner models.

A Samsung Air conditioner and its remote control

To activate Smart Install mode, you need to press three buttons on the Air conditioner’s remote control.

1 Point the remote control at the Air conditioner, and then press and hold the Power, Mode, and SET buttons simultaneously for about 5 to 7 seconds.
A Samsung Air conditioner and its remote control with the Power, Mode, and SET buttons highlighted
2 The Air conditioner will begin running the self diagnostic test. This will take between 7 to 13 minutes to complete. The Air conditioner’s LEDs may blink during the test.

Note: The remote control cannot be operated during Smart Install mode.

3 Check the numbers on the panel in the lower right corner. The numbers will begin with 0 and increase until the display reaches 99. If there are no errors, then the numbers will reach 99 without any interruptions and a ringing sound will occur.
The control panel of a Samsung air conditioner is displaying the number 99
4 If there is an error, the Air conditioner will stop counting to 99 and display a letter, followed by a series of numbers. Some examples of this include the following:
  • C4 22
  • C1 01
  • C1 54
The control panel of a Samsung air conditioner is displaying C4
5 Make a note of the letter and numbers that appear on the display, as this code represents a specific type of error. The error code may appear at any point between the numbers 0 and 99.
6 Contact Samsung Support to set up service for your Air conditioner.
The control panel of a Samsung air conditioner is displaying CF

If the Air conditioner is not cooling properly, but there are no errors found during Smart Install, a dusty or dirty filter may be causing the cooling issues. In this case, you can try cleaning the filter.

Note: You should also clean the filter when the filter-cleaning reminder notification (CF) appears on the display.

1 First, slide the filter off of the Air conditioner.
The filter of a Samsung Air conditioner is taken off
2 Then, use a soft brush or small vacuum attachment to remove dust and debris from the filter.
A brush and a small vacuum are used to clean the filter of a Samsung Air conditioner
3 Next, soak the filter in a mixture of mild detergent and water for 30 minutes.
The filter of a Samsung Air conditioner is being washed using a mild detergent
4 Rinse the filter and let it air-dry in a ventilated area away from direct sunlight.
The filter of a Samsung Air conditioner is drying
5 Reinstall the filter and reset the filter cleaning reminder if necessary. To do so, press the Options button, then navigate to and select Filter Reset, and then press the SET button.
A Samsung Air conditioner and its remote control with the Options button highlighted

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