RT21F7WX3E Gibson Refrigerator - Instructions

1. Unplug the refrigerator.2. Remove the storage rack and back panel in the freezer. 3. Locate the thermostat. 4. Defrost the freezer coils , i used a hair dryer. 5. Remove the thermostat from the cooling coil and then clip the connecting wires close to the unit. 6. Strip the ends of these wires and connect these wires to the wires of the replacement unit using the supplied wire connectors. 6. Heat seal with a lighter the connections using the water shield sleeves provided and further wrap connections with electrical tape. 7. Reconnect the thermostat to the cooling coil at the location it was removed from. 8. Replace the freezer back panel removed earlierand the storage rack if you have one. 9. Plug the freezer back in. My refrigerator has been working ever since the repair. There are several YouTube videos available that walk you through the diagnoses and repair process. They are very good.

with patience

Ordered new parts, removed old parts, put in new parts. Done.

I needed to determine if the heating coil was ok. I bypassed the thermostat, rotated the defrost timer manually with a flat screwdriver until it clicked. The coil heated up and turned a glowing red. So the coil was ok. After looking at the wiring diagram located on the back, the only parts in line was the timer and the thermostat. So I ordered both, replaced them, and everything is working fine. I went online about noon on Thursday, placed the order. The shipping indicated 2-3 business days. To my surprise, they were delivered to my home on Friday, mid morning. Great service from Part Select.

The old drain pan had a 1 ½” tall bushing attached to the center of the pan. The new pan did not have this bushing which was great. I had to cut about 1 inch off the bushing to remove the old pan. Also after cutting the bushing I had to screw the bushing off after cutting the old pan from the bushing. I installed new pan onto the ½” of threads that was left on the top of the compressor. Checked repair two days later all was great.

Unplug the refrigerator. You will ultimately need to remove the back panel of the freezer. But first, you will need to unscrew 2 screws on a small vertical fan vent and unscrew two screws on the fan. Maneuver the fan out of the round hole in the back panel and unplug the 3 prong wire connection. Then remove the fan. Unscrew the 4 remaining visible screwson the back pannel and remove the panel. This will expose the freon coils. On this model, the heater has two connections at the top of the coils. Unplug those wire connections. The heater extends down each side of the coils and along the bottom of the coils. Unhook two aluminum ties that connect the heater element to the coils. These ties stabilize the heater element and also prevents any current from flowing along the element because of the touching of two different metalic parts. Maneuver the heater element out of the coils. To install the new heater, reverse the above process beginning with installing the new heater element. If it hasn't already been done, it is good idea to test the old heater element with an ohm meter to make sure that the element is actually bad. The circuit should be open. This is the second heater element that I had to replace on this refrigerator, and it was actually burned in half both times, so I knew for sure the element was bad. Then test the new element to make sure it is good, and start the installation..

simply watched videos provided…making it EXTREMELY simple..saved me hundreds by not having to throw it out!! running better than ever like as if it was brand new!!

Based on the diagnosis on this site I thought the 66% odds of the problem being the Defrost Timer looked pretty good, $30 including shipping versus a Sears tech phone estimate of $250-300. BINGO! Just follow the online installation instructions and don't forget to use the reset switch as described. Works like new! THANK YOU

Problem not consistent. OK for 2-3 weeks, then freeze coils. Mark and observe the defrost timers manual rotating adjuster. Timer would stop mid cycle. One revolution equals 8 hours of compressor run time followed by 30 minutes of defrost. Replacing timer took 5 minutes.

I went on partselect put in make and model number, a list showed the probable cause. I watched the how to video. When I received the part in short order I loosened 2 screws disconnected the wiring plug (sprayed it with contact cleaner) pluged it in, removed screws from old part put them in new one. Put timer back in its location and tightened the screws. Very eazy, works fine.

I pick up very fast at these kind of small jobs but because of my very busy schedule I decided to call (2 times) technicians about my problem but none of them had any idea. About my repair, I removed the grill at the bottom of the refrigerator, unscrew a small plate (located on the bottom left side) that's holding the defrost timer. I plug on the new part, screw back the plate with the defrost timer and that was it. Don't forget to turn clockwise with your finger the timer until you hear a "click" and then turn it slightly more to the right. There is also a video on U-tube.

open freezer door two screws just below unscrew slide piece to side unplug reinstall very simple.

tested the thermostat, cleaned the coils, checked seals all clean. defrost timer did not cycle so replaced it but issue not resolved. even though freezer was working while refrigerator was problematic, proceeded to open freezer panel. discovered that fan was not pushing cold air into refrigerator compartment due to ice build up in connecting tubes. cleaned ice and replaced panels to positive result

Watched the video once. Removed four 1/4 inch screws with a nut driver unplugged the unit, took out two screws securing the timer. Replaced did all of this in about 10 minutes. It was "exactly" as the video showed and it's worked perfectly since the replacement of the faulty timer. I saved a $75.00 service call minimum and the part was more than likely cheaper from Part Select than from the repair facility. Although I'm a pretty good handy man, you would not need any experience to make this repair. The instructions are precise and the part fit perfectly.

I first thought the defroster heater broke - took the back wall of the freezer off and cooling fins were fine. Then took the defroster timer out and opened it up. The contacts were badly burnt so the compressor and fan ran during only part of the cooling cycle. Replacing the timer took less than 5 minutes - turn off the power, remove one screw to take out the control box, cut the ground wire (new timer housing is plastic and does not have a ground connection), remove two screws to unmount the timer, unplug the old timer, plug in the new timer, fasten with two screws, put the control unit in and fasten with one screw, turn power back on.