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Kenmore gas-dryer doesnt start.


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18 replies to this topic

#1 semajftw

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Posted 23 May 2005 - 05:18 PM

I've never posted to a site like this before, I sure hope you can help me. Can someone help me troubleshoot my dryer? From all the posts I have read I have realized that the more info you have the better off *I* will be. So here goes.

I have a gas Kenmore 90 Series Dryer Model number 110-97590140.

Couple of days ago my wife said it wasnt drying well, took about 2-3 times what it normally took to dry a load of laundry. Then it quit working all together. It doesnt even start now.

Here is what I have done and what I have checked.

1. The electrical outlet works.

2. The dryer is plugged in.

3. The door switch was tested for continuity and is working.

4. The timer was somewhat checked. (I really dont know what I am doing.) The timer has always made a humming noise when not in the off position, It still makes this noise and will stop when the door is opened.

5. I took apart the dryer, and thoroughly cleaned it.

6. From reading the site, I checked the thermal fuse. It has continuity also.

Right now, the dryer is in pieces, if I need to put it back together to troubleshoot more, it isnt a problem. My very uneducated guess is that it is the ignitor, but I dont know how to verify that, without just replacing it. And I would like to avoid unnecessarily replacing parts.

Any help troubleshooting this would be extremely appreciated.

Thanks for your trouble.
-semajftw


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#2 FatMan

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Posted 24 May 2005 - 02:54 AM

Put it back together and run it with the vent off, check to make sure the vent isn't plugged. Then remove the inspection plug from the lower left front corner and watch the flame and or ignitor, if the ignitor glows and you don't get a flame  you most likely need the coils on the burner valve. If no glow from the ignitor then you want to check the sensor and ignitor, that's enough for now let us know what you find.    

#3 Pegi

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Posted 24 May 2005 - 11:04 AM

From what I am reading the dryer is dead, will not even run....is this correct or not?
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#4 semajftw

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Posted 24 May 2005 - 11:15 AM

Yes, the dryer does not start now. 

It was drying slowly and now it doesnt start at all.

-semajftw


#5 Pegi

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Posted 24 May 2005 - 11:30 AM

Hummm, this is a puzzle.  Breaker feeds the outlet, outlet feeds the cord, cord feeds the terminal block=make sure the black wire is not burnt off the terminal block,  ...terminal block feeds dryer, black to the timer, feeds the push to start switch, check the push to start switch, this feeds the door switch, by pass to test, blue to white, door switch feeds motor, make sure all of the wires are ok on the motor. The white termal fuse on a gas dryer cuts power to the heat circut not the motor. The long dry time was probably caused by a blocked vent system from the dryer to the outside so the dryer might have hurt the electrical to the dryer. But since the timer hums this should be ok.  Check the start switch and the door switch, and that leaves the timer or the motor or a burnt wire...ouch???   Keep us posted.
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#6 semajftw

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Posted 24 May 2005 - 04:05 PM

Breaker feeds the outlet...check
outlet feeds the cord...check
cord feeds the terminal block=make sure the black wire is not burnt off the terminal block...check
terminal block feeds dryer, black to the timer, feeds the push to start switch, check the push to start switch, this feeds the door switch...check
door switch feeds motor, make sure all of the wires are ok on the motor...check
Check the start switch...check
the door switch...check
the timer...dont know how to check, but it hums
the motor...dont know how to check
a burnt wire...I dont see any.

what does that leave?

BTW I cleaned all the vents, and put it back together. I got nothing.

Is this dryer a total loss? :(




#7 Pegi

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Posted 24 May 2005 - 04:20 PM

Oh Hell, I should have looked before!!!  This is one of those damn DOTT dryers!!!!  Just looked at the breakdown to see what I was missing...check the belt switch under the belt idler pulley assy.  This is a switch that cuts power to the motor if the belt breaks and we have seen these go dead just because they want to..........see if it makes and breaks when you push the button in and out....would show good with the button out but if the belt were to break the idler arm would push against the switch pushing the button in and cutting voltage to the motor.....sorry I did not look earlier, worth a look see...
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#8 semajftw

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Posted 24 May 2005 - 04:35 PM

Just tore apart the dryer again. this switch seems to be working properly.

:(

#9 semajftw

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Posted 24 May 2005 - 04:45 PM

Not that I am a good trouble shooter. But how does one check the electric motor?

#10 Pegi

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Posted 24 May 2005 - 04:55 PM

well hell.....there is a white thermo fuse on the vent housing that on an electric dryer cuts the power to the motor but on a gas dryer, a normal gas dryer that is, cuts the power to the heat circut.  But this is not a normal dryer, let us check that white fuse on the vent housing should show to have cont.  it is behind the blower housing, but do not believe that will be the problem,however at this point..........
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#11 semajftw

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Posted 24 May 2005 - 05:03 PM

I checked the thermal fuse, before. Checked it again. Got all excited because there wasnt any continuity, then realized i didnt turn on the multimeter :(
It has continuity.

Any other thoughts?


#12 Pegi

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Posted 24 May 2005 - 05:26 PM

If this has a regular timer you can remove it from the dryer, remove the silver plate off of the back and carefully pull the silver back and cam out leaving the wires attched and see if there are burnt contacts inside of the timer/  Want to be careful to not bend any of the contact followers, will want to turn /wiggle the timer shaft while pulling or reinserting the timer cam so all will line up right without bending gold followers.  You could also have a bad wire somewhere would have to ohom every wire to see if has a break inside the insulation.  You can test the motor taking a test cord to 4 and 5 on the motor switch and plugging it into a 115 volt outlet.  this is such a puzzle wish I could get my little hands on it....:X
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#13 exsearsguy

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Posted 24 May 2005 - 06:01 PM

Like Pegi, I wish I could see this, but my suspicion is a bad motor.Long dry times (motor cutting out after running awhile) and then no running at all.Does your motor act like it tries to start when  your dryer is together?

#14 Pegi

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Posted 24 May 2005 - 06:09 PM

are you sure there is nothing wrong in the breaker box dropping amps or voltage when a load is put on it????
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#15 semajftw

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Posted 25 May 2005 - 07:37 AM

exsearsguy - the motor does nothing. doesnt even try to start.

pegi - breaker box dropping amps or voltage when a load is put on it? I dont know how to check that, but wouldnt it go on and off, if that was the case?

I think what I need to do is go back to square one and see if I did anything wrong when checking things.  Could someone post a complete list of what I should check and a link to how to check it?  By no means am I an expert in electrical, but I follow directions well.   And if I was doing something wrong, I just wouldnt know what it was, unless someone told me differently.

Thanks everyone for your help.  This is my last ditch effort before calling the dryer a complete loss.

-semajftw


#16 exsearsguy

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Posted 25 May 2005 - 10:29 AM

Try checking your voltage when you are trying to start the dryer and see if your  voltage drops below normal.Do this on both 110 volt legs and 220 volts.If it acts funny (it shouldn't drop much or long),you probably have an electrical problem.

#17 semajftw

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Posted 25 May 2005 - 10:35 AM

Excuse me for my ignorance, but it is a gas dryer I dont think it has 220V.

#18 Pegi

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Posted 25 May 2005 - 11:41 AM

ZZZZZZZZTTTTTTT if so!!!   Bye dryer!!!!   Is ok, they just did not notice was a gas dryer...  ;)
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#19 exsearsguy

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Posted 25 May 2005 - 05:48 PM

Sorry about that. I thought it was electric.Just check the 110 then.




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