Zach for Model Number LGHB2869TF7 I have a Frigidaire Gallery refrigerator that is currently giving the error code SY EF. After realizing that this is a evap fan issue I checked the fan and it seemed to be running on hi fine. Upon putting the fridge into diagnostic mode and cycling the fan from off, lo, and hi I find that the fan never changed off of HI setting even when turning the unit off at the control panel. I called a repair man at this point to further investigate. Upon investigation he presumed it was the board. Upon replacing the board the error persisted with the fan not cycling so we re installed the old board. After this he tried tracing the wiring (what little is accessible) and did not find any issues but when he tried the diagnostic mode once more it functioned correctly! After the unit ran for about 6 hours then the error code appeared again with the fan not cycling like before. I also took apart what I believe was the evap sensor/thermostat on the top of the freezer and tested it for resistance with it falling in resistance upon coming up to room temperature which leads me to believe it is functioning correctly.
Answer Zach, This issue would most likely be caused by a faulty fan motor. Read More... Answered by AppliancePartsPros.com | Wednesday, January 25, 2023