Compactor ram was "sticking" now doesnt work (Whirlpool GX900QPKS0) - The Kitchen Appliance Repair Forum - Do-It-Yourself Appliance Repair Help - ApplianceGuru.com: The Samurai Appliance Repair Forums

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Compactor ram was "sticking" now doesnt work (Whirlpool GX900QPKS0)

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Posted: Fri Feb 12th, 2010 05:52 pm

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DefiniteNovice
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My compactor ram would go down and come up but would make a loud noise and wouldn't shut off. I continued to operate it by just turning it on and off at the switch instead of pressing the "start" button. Now, however, it doesn't turn on at all. Nothing.......Where should I start?

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Posted: Fri Feb 12th, 2010 06:19 pm

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appl.tech.29501
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Check to see if the door switch lever is broken

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Posted: Fri Feb 12th, 2010 11:09 pm

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DefiniteNovice
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I located and checked the door switch with my handy dandy ohm meter. Needle didn't move which means switch is bad....correct? (analog)

I have a new one on order so hopefully I will have a fully operational compactor in a few days.....

Your the man!!!

Thanks

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Posted: Fri Feb 12th, 2010 11:24 pm

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appl.tech.29501
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That won't fix your other problem, but that should get you back to where your were

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Posted: Wed Feb 17th, 2010 08:10 pm

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DefiniteNovice
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Ok....I replaced the door switch and I am back to where I was (as you stated)...the compactor is again operating but the ram is sticking and wont shut off. I have to open the door to get it to stop. Where do you suggest I go from here?

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Posted: Wed Feb 17th, 2010 08:35 pm

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kdog
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remove the top and get an eye on the teflon "powernuts" which are the male threaded inserts inside the 2 brackets that attach to the top of the ram. One or both may have worn and not allow proper positioning to operate switch - replace them as a pair

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Posted: Wed Feb 17th, 2010 08:44 pm

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kdog
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Looks like the RepairClinic part # is 750668, which appear different than the ones I recall replacing in the past - look like they attach from the side - see if you can verify problem with the thread travel

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Posted: Wed Feb 17th, 2010 11:54 pm

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DefiniteNovice
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It appears the ram travels down then back up fine. However when it reaches the top, it starts making the noise and appears to want to keep going up. Could it be the upper limit switch? There are 5 "leads" on the switch.(marked GY, R, O or V, Y, O or Y or BR) I have disconnected all wires but I'm not sure which leads to use to test to see if the part is bad.

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Posted: Thu Feb 18th, 2010 01:46 am

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RegUS_PatOff
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GX900QPKS0 Tech Sheets

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Posted: Thu Feb 18th, 2010 03:39 am

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KurtiusInterupptus

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check to see if the start switch is stuck...this would also cause it not to stop at the top ram position unless you turned it off...

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Posted: Thu Feb 18th, 2010 02:47 pm

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DefiniteNovice
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Thanks for the tech sheet. I'm just a girl trying to repair her trash compactor but if Im reading it right...

I touched my ohm meter to the GY and R leads and nothing happened (needle didnt move.) Soooo, this means I have an open circuit and either the GY or R wire are broken or disconnected at the motor????

Sorry for my ignorance, tech sheet is all "greek" to me.

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Posted: Thu Feb 18th, 2010 02:48 pm

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DefiniteNovice
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How do you check that? (start switch stuck)

Please excuse my ignorance!

Last edited on Thu Feb 18th, 2010 02:49 pm by DefiniteNovice

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Posted: Thu Feb 18th, 2010 03:20 pm

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RegUS_PatOff
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Does your model have a Cycle Switch ?

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Posted: Thu Feb 18th, 2010 03:57 pm

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DefiniteNovice
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no, it doesn't appear it does.

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Posted: Thu Feb 18th, 2010 04:09 pm

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RegUS_PatOff
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It does change directions OK (goes down & comes back up) ?

Power removed:

OHM meter tests:
(needle movement)

Momentary Start Switch:

Violet to Yellow only while Start Switch is pushed.
if needle movement while not pushing Start Switch,
then Start Switch is bad OR part of the Top-Limit Switch is bad.

(would have to disconnect to determine)

if you have a Harbor Freight Store near you,
they have these digital meters, usually $ 4.99, w/battery
("normal" prices change from month to month)

but sometimes on sale for $ 2.99
if on sale, print sale page and take to store

click on picture

# 90899 Sale $ 2.99 in this postal & in-store sale flyer Expires : 02/25/2010
http://www.harborfreight.com/tabviewer/4572/6.gif
click on picture

OR this one

click on picture

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Posted: Thu Feb 18th, 2010 05:24 pm

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DefiniteNovice
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It does change directions...goes down then up again but makes the tamping noise once it gets to the top.

Power removed, I touched ohm meter to the yellow lead and the violet lead on the switch. The needle moves all the way to the right.

I tried pressing the "start" while touching the two leads but there was no change, the needle still stays to the right.

What do I need to disconnect to deteremine where the problem lies?

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Posted: Thu Feb 18th, 2010 05:32 pm

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kdog
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the yellow and voilet are different circuits and should not have continuity - check to see if the violet and orange are open at the top of the rams travel as this is the "limit" portion of the switch(dual purpose switch) yellow to red, or yellow to gray determines motor direction. Either the ram is not coming up far enough to open the switch (V-O) or the switch itself has failed

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Posted: Thu Feb 18th, 2010 05:48 pm

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KurtiusInterupptus

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sounds like you got it- to be absolutely sure, remove the wires and test just thru the switch contacts...if they are closed when you are not pressing the start button, theres yer problem

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Posted: Thu Feb 18th, 2010 06:06 pm

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kdog
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KurtiusInterupptus wrote: if they are closed when you are not pressing the start button, theres yer problem
That's assuming the ram has travelled upward enough to be actuating the switch arm

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Posted: Thu Feb 18th, 2010 06:11 pm

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KurtiusInterupptus

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i think we be talking bout 2 different things ,dog. i mean the pts momentary, not the upper ram switch

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