Error Code E CF

Defect of BLDC fan motor for machine room (condenser fan)

Also displayed as: E CF

How to Fix

1. 1

   Power cycle the unit and enter Test Mode 1 (press TEST button once on Main PCB).

2. 2

   Check if condenser fan is rotating. If fan does not rotate, go to step 3.

3. 3

   Manually rotate the condenser fan blade by hand. If sticky or seized, replace the condenser fan motor.

4. 4

   Measure motor supply voltage at CON4 24th Pin to 23rd Pin in Test Mode 1; expected 11.4 to 12.6V.

5. 5

   If motor supply voltage is absent, replace the Main PCB.

6. 6

   If supply voltage is correct, measure feedback voltage at CON4 22nd Pin to 23rd Pin; expected active signal (not fixed 0 or 5V).

7. 7

   If feedback voltage is fixed at 0V or 5V, replace the condenser fan motor.

8. 8

   If feedback is correct, measure PWM voltage at CON4 21st Pin to 23rd Pin; expected not fixed 0 or 5V.

9. 9

   If PWM is fixed 0V or 5V, replace the Main PCB.

10. 10

    If all voltages are correct, explain normal operation to customer.

This Error Applies To

LG LF29S8330 Series Refrigerators