The other day I wrote a post about how our freezer stopped working and started to defrost. After consulting with my father-in-law I discovered that the timer-defrost switch was bad and it was causing the frost free freezer to be stuck in defrost mode. So I went online, looked up the part number and ordered a replacement for $25!
As you can see in the photo the new timer-defrost switch is a simple plastic switch that is easily removed by taking out two small machine screws. The timer-defrost switch is located at the left (looking at the back) rear corner of the Frigidaire Commercial Freezer, Model No. LFFU1765DWO. It’s attached to a galvanized steel hanger bracket with two small screws.
The timer-defrost switch is really easy to replace. First you need to un-plug the freezer so there is no electricity going to it. Then once you remove the two small screws you can pull it down a bit so it’s easier to remove the wiring harness. The wiring harness is on there really tight so be sure to be careful not to damage the wires when you remove it.
Simply reverse the process, attach the wiring harness to the new timer-defrost switch, re-install the small screws and you’re finished! This repair literally took 5 minutes to complete with a phillips head screw driver. Be sure to wait at least 10 minutes before turning the freezer back on (something to do with the compressor).
So if you’re freezer stops working and seems to defrost even though there is power to it be sure to check the defrost-timer switch as I described in my previous post. I saved this $500 freezer from certain disposal with a $25 part and 5 minutes of my time.