Error codes on your Samsung indoor air conditioner
The display panel on your Samsung indoor air conditioner unit will blink and show a code if an alarm arises. Not every alarm is a product defect, and the alarms can be easily checked and diagnosed using our guide. However, some alarm codes may require you to contact a Samsung service center or a qualified service provider for assistance.
Frequently displayed codes
Note: The design of the display panel and the alarm codes may differ based on the model.
Below are the most common codes and their solutions. Please note that not all of these codes indicate a product error or defect.
|
Displayed codes |
Cause |
Solution |
|---|---|---|
|
CF |
Filter cleaning reminder or Filter reset indicator |
Clean or replace the inner filters of the indoor unit. Then, remove the filter cleaning reminder using the air conditioner’s remote control. (Refer to the user manual if needed.) |
|
CI |
The Auto clean function (The Auto clean function starts immediately when the AC is off.) |
This indicates that the Auto clean function has been enabled. You can turn off this function using the air conditioner’s remote control. (Refer to the user manual if needed.) |
|
dF |
Auto Defrost function (During the defrost operation.)
|
This indicates that the Auto defrost function has been enabled. This is not a product defect, but one of the modes used during heat operation to protect the outdoor unit.
|
Guide for indicators
CF function
When the inside air filter has too much dust, your air conditioner will not be able to draw in a sufficient amount of air. This may cause temperature issues and noise. We recommend cleaning the filter every 2 weeks or when the CF code appears on the indoor unit display. (The CF code is the filter cleaning reminder.)
Please check your air conditioner model and follow the user manual to clean the air filter. This will provide you with cool and fresh air.
dF (Defrost function)
When the unit goes into Defrost mode during the heating operation, the dF indicator will be displayed on the panel. For indoor units, the fan will stop running temporarily to prevent cold air flow. For outdoor units, steam may be visible from the frozen heat exchanger.
Automatic Defrost
When the outdoor temperature is low and the humidity is high, frost may develop on the outdoor heat exchanger, which may decrease heating efficiency. When these conditions are detected during heating operation, the air conditioner runs the Defrost mode for 5 to 12 minutes to defrost the frozen heat exchanger.
Codes requiring authorized service
When the air conditioner displays an alarm on the display panel and won't turn on, it means the room temperature sensor is shorted or defective. Most of these cases need to be handled by an authorized repair technician. Therefore, please contact the nearest Samsung service center for assistance.
|
Displayed codes |
Cause |
Solution |
|---|---|---|
|
C1 or 21 on loop |
Defective room temperature sensor error |
Contact a Samsung service center for assistance. |
|
C1 or 22 on loop |
Defective heat exchanger temperature sensor |
Contact a Samsung service center for assistance. |
|
C1 or 54 on loop |
The Fan is not rotating |
Contact a Samsung service center for assistance. |
|
C1 or 63 on loop |
Incorrect or deleted data in the EEPROM for the main control board |
Contact a Samsung service center for assistance. |
Notes:
- The codes displayed will correspond with the air conditioner model. However, the first letter of the code may differ depending on the model.
- Codes containing numbers will blink on the display panel.
- If the indoor unit indicator blinks, write down the code and contact a Samsung service center with the information.
- For further assistance or questions, please Contact us.
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