Error Code E CF
Defect of BLDC fan motor for machine room (condenser fan)
Moderate
Address soon - your appliance may not work properly
Also displayed as: E CF
How to Fix
- 1
Power cycle the unit and enter Test Mode 1 (press TEST button once on Main PCB).
- 2
Check if condenser fan is rotating. If fan does not rotate, go to step 3.
- 3
Manually rotate the condenser fan blade by hand. If sticky or seized, replace the condenser fan motor.
- 4
Measure motor supply voltage at CON4 24th Pin to 23rd Pin in Test Mode 1; expected 11.4 to 12.6V.
- 5
If motor supply voltage is absent, replace the Main PCB.
- 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
If feedback voltage is fixed at 0V or 5V, replace the condenser fan motor.
- 8
If feedback is correct, measure PWM voltage at CON4 21st Pin to 23rd Pin; expected not fixed 0 or 5V.
- 9
If PWM is fixed 0V or 5V, replace the Main PCB.
- 10
If all voltages are correct, explain normal operation to customer.