Error code ERF

Hello
The E RF code is abnormality of the BLDC fan motor in refrigerator section. It is caused when the feedback signal is not received for over 65 seconds from BLDC fan motor.
Refrigerator Fan Error (E rF)
1) Open the freezer door and Check
the air flow.

2) Check the Fan Motor voltage
Is Fan Motor voltage 8~12V?

3) Check the Fan motor.
Rotate fan using hand.
does it feel sticky?
GO TO page #45 in technician link below
Causes :
1) Bad connection to BLDC motor
2) Drive IC defective
3) TR defective
Matt Ace technician