Error Code 21E
Freezer fan motor or tachometer feedback signal failure
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 21 E
What This Means
Bad feed-back signaling wire; Contact problem at motor wire terminals; Defective fan motor
What actually causes this:
Fan motor winding open, FG signal wire damaged, or ice blockage preventing motor rotation
First Thing to Check
Verify voltage at CN75 #1 and #4 is 7-12V DC
Parts Involved
How to Fix
- 1
Check voltage between MAIN PCB CN75 #1 (GRAY) and #4 (YELLOW) should be 7V-12V
- 2
Verify FG signal from fan motor is present on CN75 #6
- 3
Check for ice buildup or mechanical restriction around motor
This Error Applies To
Samsung RH25H5613S Series Refrigerators
Related Error Codes
Freezer temperature sensor communication failure
Refrigerator temperature sensor communication failure
Ice maker temperature sensor communication failure
Condenser fan motor or tachometer feedback signal failure
Freezer defrost sensor temperature reading failure
Humidity sensor output voltage failure
Refrigerator defrost sensor temperature reading failure
Ambient room temperature sensor failure