How do you fix a Samsung refrigerator error code 21 e?

This error code means that the refrigerator is not able to communicate with the display board. There are a few reasons why this might happen:

1. The refrigerator is not plugged in properly.

2. The display board is not properly connected to the refrigerator.

3. The display board is defective.

4. The refrigerator is not properly grounded.

5. The wiring between the refrigerator and the display board is damaged.

6. The display board is not receiving power.

7. The display board is not functioning properly.

If the refrigerator is not plugged in properly, make sure that the power cord is plugged into a grounded outlet. If the display board is not properly connected to the refrigerator, check the connections and make sure they are secure. If the display board is defective, replace it with a new one. If the refrigerator is not properly grounded, have an electrician check the grounding system. If the wiring between the refrigerator and the display board is damaged, have an electrician replace it. If the display board is not receiving power, check the fuse or circuit breaker. If the display board is not functioning properly, replace it with a new one.

• Check the wiring to the compressor and make sure it is secure
• Check the compressor itself for any damage or debris
• Check the compressor relay for any damage or debris
• Check the evaporator fan for any damage or debris
• Check the evaporator coil for any damage or debris

1. Check the wiring to the compressor and make sure it is secure

1. Check the wiring to the compressor. Make sure it is secure and that the terminals are not touching each other.
2. If the wiring is secure, then the compressor may have a problem. If the wiring is not secure, then the compressor may not work properly and may give an error code 21 e.

2. Check the compressor itself for any damage or debris

1. Check the compressor for any damage or debris.
2. If there is any damage or debris, replace the compressor.

3. Check the compressor relay for any damage or debris

1. Open the refrigerator and locate the compressor relay. It is a small, silver box with a green light on it.
2. If the relay is damaged or has debris inside, the refrigerator will not operate and will display an error code of 21.
3. To fix the relay, remove the cover and unscrew the relay. Clean the contacts and replace the relay if necessary. Reinstall the cover and test the refrigerator.

4. Check the evaporator fan for any damage or debris

1. Open the refrigerator door and look for any debris or damage to the evaporator fan.
2. If you find any debris or damage, clean it off with a vacuum cleaner.
3. Replace the evaporator fan if necessary.

5. Check the evaporator coil for any damage or debris

1.Open the refrigerator and locate the evaporator coil. If the coil is damaged or has debris, it will need to be replaced. 2.If the coil is not damaged, remove any debris and cleaning materials with a vacuum cleaner. 3.Replace the evaporator coil if necessary.

Still not working? maybe try one of these options:

1. Check the condenser fan for any damage or debris.
2. Check the condenser coil for any damage or debris.
3. Clean all the coils and fans with a vacuum cleaner and make sure there is no debris blocking them.
4. Replace any damaged parts.