GC900QPPB3 Whirlpool Trash Compactor - Instructions

Had to first raise the screw plate that compacts the garbage. Then had to turn the compactor over and remove screws holding the bottom plate on in order to get to the gears. Once that was done I removed the worn gears and the chain drive and replaced with the new gears and the chain. Put the unit back together and works like a new one. A $35 dollar fix for a unit that sells for around $900 today. Thanks to partslect for being able to help me with the parts needed. Not only did I save on a new unit but by doing this myself I saved around $100 in labor charges.

replaced the large gear and put it back together.

took longer to pull it out and put it backunder the counter then to pull the panel take the chane gear & drive gear off and put it back together

Same problem as described previously on this site. Pulled unit out and replaced the gear as described. Thanks for the info - would have been tough with out it.

I removed the unit from under the kitchen counter by first pulling the trash drawer all the way out and lifting it out of the track and setting it out on the floor. I then slowly pulled the compacting unit out and unplugged the cord from the electrical outlet. With the entire unit out in the floor I took a nut driver and removed the screws from the top plate and the screws from both sides at the bottom of the front housing. This allowed access to the directional switch. Two screws on the right side of the switch have to be removed to remove the switch along with two holding plates on the left side of the switch. The switch can then be accesses for removal. Several wires are attached to the switch and should be removed one at a time and installed to the identical identical location on the new switch. The new switch can then be installed by aligning the holes and reinstalling the holding plates. When this is done the front frame and top plate can be replaced with the nut screws. Plug back into the electrical outlet and see if it works. In this case it did exactly what it was doing before I started. So either I did not reinstall the directional switch properly or I am in the one percent rather than the 99 percent that should successfully solve the problem as suggested in the trouble shooting guide. I will now recheck the installation of the directional switch nd then check the bottom of the unit to see if the gears or chain drive are broken .

Pull unit from under counter (Held in place with 2 screws) Use nut driver to remove top and front panel. (I didn't remove the control panel from the front panel which probably made access more difficult) Locate the directional switch near the top of the unit and remove two screws, being careful not to lose a small metal plate into which the screws thread (similar to a Tinneman nut). I moved the wires one at a time from the old switch to the new as I am color blind and have trouble with wire colors. Fit the new switch in place, being sure the switch lever is positioned against the metal tab that operates it. Screw the switch in place and then reassemble the compactor.

easy ... got the new bag holder and replaced old one. the impressive part of the process is how easy it was to get the part info from partselect website. could have spun my wheels a lot without that.

changed out the big gear that was broken

Compactor ram was stuck in the down position after hearing a loud bang during a compacting cycle. Removed outer compactor casing to determine cause, only to find gear housing underneath the compactor that contained drive chain and gear assembly. Primary gear had split neatly in half. Determined the appropriate part needed with partselect part finder (of course, an entire kit, and not just the gear), had part shipped and had compactor repaired in three days. The actual repair and reassembly of the compactor took less than a half-hour. Consisted of removing chain tension from gear hub by loosening four sheet metal screws holding motor assembly, removing circlip and old gear hub from chain and shaft, replacing gear hub with new part, lubricating the gear mechanism, and reinstalling in reverse order.

Laid appliance on side - removed top sheet metal cover and bottom sheet metal cover. Broken delrin ring gear was on bottom of bottom cover (housing). Gear had broken off of its hub, which also was the sprocket chain drive for both acme screws driving the compactor platten. Motor had to be loosened so that the chain could be removed from the old sprocket hub, and the new delrin ring gear - with new sprocket hub attached - could be mounted on its fixed spindle. With new delrin gear/chain sprocket mounted, the motor had to be spaced and tightened to allow 0.010 inch lash between the gears. The only instructions included with the new gear was how to do this - by placing a piece of paper in between the pinion gear on the motor, and the new ring gear, and then tightening the motor into place. This was done, the sheet metal covers were re-installed, and the compactor works just fine. There is a design flaw in the original (KitchenAid) engineering of the gear, however, and I expect that in the next four years this will probably happen again.

A trash compactor is a very simple machine. Basically there are two parts that could cause the problem of the machine not shutting off at the end of the cycle. The limit switch which was listed as the most likely cause and the momentary contact switch, if fused would cause the same problem. I first replaced the limit switch and to my dismay, the problem continued which meant the contact switch was at fault. The switch unit is easy to get too, First remove the two screws securing the front panel to the machine. Then transfer the wires from the old switch to the new. Remove two screws which secure the switch unit to the front and discard the old switch. Reassemble the unit in the reverse order and plug the unit back into the wall. Works perfectly!

First off....I was surprised at how inexpensive the drive gear kit was. As others commented, they fit perfectly and I believe will fit other manufacturer's models since there is a lot of cross branding. The Drive gear replacement itself would be easy as described by others so I won't repeat that. However replacing the plastic tubular "ram stops" on the screw drive was a challenge since there are no "helpful hints" in the blog. To do that you have to work from the top and sides. Needed to remove the two gear cams where the screw drives are seated on the bottom of the unit, then (working with the unit on it's side)you have to raise the whole (heavy) plunger that is attached to the drive screws high enough to remove the old tubular ram stops and bushing and replace. To raise the plunger assembly out from the top you have to remove the sheet metal top plate of the unit....and....importantly remove the control panel on the front where the switches are. There is a limiter switch that has a metal arm which engages a plate on the plunger to stop the unit when it reaches the top. You need to remove that switch to be able to raise the plunger assembly high enough to get the new parts on the screw drive. Put all that back together and then go on to the gear replacement as described by others which was straight forward. Very messy job with all the grease and garbage residue. I am pretty handy figuring these things out, and there may be an easier way, but next time I will call a pro or replace the whole compactor.

Replaced drive gears.They arrived in a kit from Parts Select with instructions.They fit perfectly and the compactor works like new.

Looking at the information I found online it was either one of 2 things the directional switch was bad, or the drive gear was broken. I replaced the directional switch 1st since that was the easiest and that did not solve my problem. I put it all back together and thought about it for a little while. After a couple of days. It occurred to me that I could see the ramrod's spinning as the plunger goes down, then when the plunger reached as far as it would go. The ramrod's would stop spinning. I reasoned that the problem had to be somewhere between the motor and those rods when I opened up the bottom of the trash compactor, Iran the cycle again and I could see that the drive gear was still spinning, but the chains to the ramrod's were not spinning. Once I saw that I realized that the sprocket that was attached to the drive gear had broken. The sprocket is metal and the drive gear is plastic and they fit together perfectly, but through age or stress. The plastic have become rounded and no longer fit perfect on that nut when you applied a good deal of pressure. I didn't have the tool that I needed to replace the small drive year. I think you need some kind of a punch to get that pin out. So I left that one in place loosened the nuts that hold the motor in place to create some slack in the chain chain came off the new drive gear one on. I tightened the motor back up in the correct position is reassembled everything and it's working perfect again.

Took the bent one out, put the new one in. The repair was not the story, the story was that we ordered the part on Monday afternoon and it was delivered on Tuesday! And the shipping was less than $8.00. Fresno to Elk Creek in less than 24 hours for that price was amazing!