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DRYER TIMER RUNS BACKWARDS

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Posted: Sat Oct 23rd, 2010 08:24 pm

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Tronicsmasta

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KurtiusInterupptus wrote:
also, according to the wiring diagram this is a 120vac dryer, right?

Kurtius,

Its one of those compact dryers that match the whirlpool world/compact washers... its an electric element but only uses 120vac

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Posted: Sat Oct 23rd, 2010 09:33 pm

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havintrouble
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all 3 timer numbers were exactly the same. now, power surge....you might be onto something. I noticed this morning the dryer was on with the timer moving backwards, when my wife turned the stove on in the other room, there was a surge or flicker of the lights throughout the entire home that i did notice. note: the stove/oven and dryer are on different breakers.

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Posted: Sat Oct 23rd, 2010 09:34 pm

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havintrouble
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oh and yes it is 120v unit. sorry i forgot to mention that in last post.

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Posted: Sun Oct 24th, 2010 01:36 am

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The numbers on the MOTOR on the timer are the same??? WHY did you change the timer in the first place????? Is there an air fluff or no heat cycle?? if there, is does the timer run backwards in that cycle??

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Posted: Wed Oct 27th, 2010 12:33 am

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havintrouble
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Just to let everyone know, the problem is solved. THE BUZZER was the problem! I'm just leaving the buzzer disconnected Thanks everyone for the help. Now you all know in case someone else has the same problem!

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Posted: Wed Oct 27th, 2010 12:37 am

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kdog
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Just for curiosity sake - please post the resistance you found with your failed buzzer

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Posted: Wed Oct 27th, 2010 12:47 am

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havintrouble
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I didn't test the buzzer. I never suspected it to be the cause. A local appliance parts store told me to disconnect it and see what happends. So I did, and it worked.

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Posted: Wed Oct 27th, 2010 01:18 am

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RegUS_PatOff
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Buzzer shouldn't have anything to do with it..

even if it was shorted ..

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Posted: Wed Oct 27th, 2010 03:51 pm

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havintrouble
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Sorry, my mistake. I kept sayin BUZZER, I meant BOARD!

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Posted: Wed Oct 27th, 2010 05:46 pm

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kdog
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So what did you disconnect exactly ?
Now dryer works fine ?

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Posted: Wed Oct 27th, 2010 06:34 pm

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havintrouble
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I removed the electronic control board. Yes, it works fine now! It is for the "auto" cycle. However, it was messing up all of the cycles.

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Posted: Wed Oct 27th, 2010 07:13 pm

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kdog
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So now the auto cycle is disabled, and you are left with timed cycles only ?

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Posted: Wed Oct 27th, 2010 09:12 pm

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havintrouble
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Yes, but the timed cycle does not move backwards anymore.

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Posted: Wed Oct 27th, 2010 11:19 pm

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kdog
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Thanks, that's interesting - ate you 100 percent certain that the hot and neutral lines are not reversed ?

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Posted: Wed Oct 27th, 2010 11:58 pm

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kdog wrote: ... certain that the hot and neutral lines are not reversed ?
wouldn't matter ..

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Posted: Thu Oct 28th, 2010 12:16 am

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appl.tech.29501
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I have definitely never heard of that and I am going to try and see if I can duplicate that problem at work...this had me flamboozled!

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Posted: Thu Oct 28th, 2010 12:49 am

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KurtiusInterupptus

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fascinating...you 'd prolly need the failed board to reproduce the problem.
definitely one for the books...this will really help someone else, sometime if this happens again.
i get the impression not many of us have seen this first hand in the field

kdog, you must have been burned on that "i checked the power and it's fine" routine
one too many times, like me.
i NEVER believe it until l i see it myself

Last edited on Thu Oct 28th, 2010 12:52 am by KurtiusInterupptus

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Posted: Thu Oct 28th, 2010 01:49 am

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appl.tech.29501
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I have a ton of those boards, I delete component by component if I have to

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Posted: Thu Oct 28th, 2010 03:16 am

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Appl.tech ...see if havintrouble will swap you boards............ then get that old board and see if that problem could be repeated ...........

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Posted: Thu Oct 28th, 2010 05:28 am

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kdog
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I make a habit of always checking circuits for polarity/ground etc (have a small indicatore that simply need be plugged in) as that seems to be the first requirement in practically every piece of accompanying literature that I have ever seen. If incorrect, no telling what can arise

This dryer somehow had a failed board influence the direction of a theoretically uni-directional motor - i would be interested to know if reverse polarity played a part in this

Last edited on Thu Oct 28th, 2010 05:30 am by kdog

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