GFU20F7GW4 Gibson Freezer - Instructions

After testing and eliminating the temperature control and the timer as the problem, I turned to the thermostat. I had to wait for the ice buildup to thaw and then could remove the rear freezer panel (this was the 3rd time: first, to discover the ice buildup causing the problem, second when it came back after a complete thaw and test the thermostat, and this time to put the Partselect thermostat back in). My thermostat was visibly damaged from water melting into ice and expanding the casing and eventually breaking one of the connections. I connected the thermostat connection wires (not recommended) to get by while ordering the part, which shipped faster than local repair places could get it from their warehouses, and at a fraction of the cost. I'm really impressed with partselect's fast service and all the knowledgable customers who have explained how they installed them. I now have an intimate knowledge of how my fridge works and saved hundreds in repair, or twice that in replacement. Thanks!

Parts Select is an excellent source for help and parts identification. I highly recomend them.
My first option was to replace the defrost timer.
After still getting ice and frost buildup in freezer I decided to replace the defrost thermostat.
Remove all shelves. Losen icemaker if applicable. Remove light cover and bulb. Remove all screws securing rear vertical cover. Carefully move back panel, disconnect icemaker and bulb assembly. carefully remove styrofoam cover at upper left and remove defrost thermostat. I tested the thermostat and found it was defective. It would not close circuit after being placed in a working freezer. Reverse procedure to replace thermostat.
This solved the problem

I followed the You-Tube instructions, removed the ice from the compressor and replaced the thermostat with the part I received from Part Select. What I took out was a part that was very much inferior to the replacement part. The repair saved me a lot of money for a new freezer and it was not difficult to do following the video. Now the freezer runs better and quieter than ever. Thank you Parts Select.

Replaced freezer defrost thermostat. Unit worked perfectly.

Replace thermostat and show and tell made it easy.

This was an easy job. First remove the ice maker, if you have one. Mine was mounted with just two screws. Loosen these screws, unplug the power cord at the connector and then lift the ice maker off. Remove the light bulb cover and the light bulb, just so you dont break it. Remove two hex screws and the back cover can be removed. My fan was mounted in the middle of a bracket retained between two rubber bushingings. Just push the fan blad of the shaft and pull the motoer out. Dissonect the power cord at the connector. My moter was differant than the replacement on the mounting so with the removial of the two screws on the motor I was able to exchange the upper and lower cast motoer housings. Reverse the assembly process and you good. Mine is running great.

Removed bottom cover , just two screws , slid old part through install hole and removed wires from old switch and installed on new switch. Installed new switch in same hole and pushed gently until it locked in place. Reinstalled bottom cover and done.

replace thermostat and timer after defrosting and cleaning out freezer. I took less than 10 minutes and now freezer has a defrost cycle that eliminates frost buildup on the coils.

Nothing to it. Remove the center insert. Under there are two phillip head screws. Remove those, place new handle in position, apply screws, and put on the insert. Your done !

inserted key and turned

backed out screws from old handle, install new hansel w/ same screws & screw cover. done

Unplug freezer let stand all night to defrost. Remove the tray cover which is located on the upper back area inside the freezer.( 3 twist fittings remove it ). Remove the upper stainless steel panel which is secured with 6 screws. This will drop down exposing the condenser. Note all the wires and fan will stay attached to the stainless steel panel, this panel will drop down no need to unplug anything. On the left upper side next to the condenser you will see the thermostat. Two color coded wires. Remove the thermostat and install the new one at the same location.

just like the video show sa 1,2,3 yeaaa thanks

Remove cover on handle, and unscrewed the old handle. Then reversed procedure

The sliding shelf side rail is held by three philips head screws that tighten into nut inserts. No amount of tightening would keep two of the three screws tight. I found that the nut inserts which are plastic and insert into the side of the freezer would pull loose, probably from years of overloading the sliding shelf basket. Ordered two nut inserts from PartSelect. 1. Remove three screws to remove shelf slide side rail. 2. Remove nut inserts to be replaced with needle nose pliers or reinsert screw a couple of turns and pull nut insert out with pliers. 3. Insert new nut inserts, position side rail, and tighten screws. Replace sliding shelf/basket.