FRT21PRHB3 Frigidaire Refrigerator - Instructions

It snapped in place.

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!

took 4 screws out of the discharge vent on top of the refrigerator section and unpluged the wiring harness and put the section on the counter and unscrewed the timer and put the new one in and reinstalled the assembly and plugged the Jack and put the 4 screws back in, and rotated the timer and put it on defrost removed the back and check the heaters and drain .

just like the video showed...it was excellent!!!

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

The instructions given to me by part Select were very good.I replaced the Timer- checked the heater with oham meter it was good- checked the door weather striping it was good and replaced the thermostat with new .So at this point I may need to call a professional unless some one has another solution.

Thermostat-Thawed freezer, took out drawers and loosened drawer track(back screw)to help remove back panel. Removed five screws from back panel with nut driver and slide panel up and out. Removed thermostat from coils. Two wire connectors pulled apart. Spring loaded connection on coil pulled off. Placed new part from partselect.(reversing sequence) Timer-Took two screws out from behind kickplate at bottom left of freezer. Pulled connector thermostat out of connector. Replaced with new timer. Turned plastic dial on timer until it clicked. Frig turned on, one week ago. Everything appears to be fine.If it doesn't freeze up in the next two weeks, I will start feeling real good.

1st. replaced the defrost thermostat pn 5303918214 did not fix it next replaced the defrost timmer pn 215846602 that did not fix it,next replaced the defrost heater pn 5303918247 still did not fix it,has the same problem as when I started I don't know what to do next guess will call for a service tech to come out,or get a new refridgerator. Looks like I wasted my money on these parts. Refridgerators are not as easy to fix as yall make them out to be. I have to say all the parts were easy to install and your instructions and videos were great, they just did not fix my refrigerator Thanks Tom

Replace thermostat and show and tell made it easy.

first I replaced the timer control hoping thats the problem,unfortunately situation the same ice build up on the freezer.so I replaced the defrost thermostat.right now I'll still observing the condition if still the same.may be in couple days.so far its good.and to replace the parts is not difficult and easy.

Removed the lower trim panel from front of fridg. and loosened two screws enough to turn it about 1/4 inch so the screw heads were in the larger holes. Pulled it out disconnected the wire connector and transfered the heat shield and screws to the new clock, connected the wire connector and aligned the screws. tightened them and job done. Has worked like new sense. Thanks Roger

Ordered the new part-Unplugged the refrigerator - took off the cover over the defective timer - put in the new part put the cover back on - plugged the refrigerator back in - so far, so good!~

I watched the videos (they really help) and followed the steps. Everything went smooth with no surprises

remove back metal cover inside refrigerator,disconnect the blower motor ,install new motor,use existing motor bracket and blades. now my refrigerator runs perfect !!!

I order defrost timer then replaced it but it seemed doesn't work. I order defrost thermostat again then it worked fine until now. Thanks. Part selects.