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dryer drum wont turn without help


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5 replies to this topic

#1 drpolm

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Posted 20 September 2013 - 04:39 PM

Hello 

 

Have an intresting issue cant quite figure out. Customer called has dryer that  wont start, it makes only a faint buzzing noise when the start button is depressed. I found that you can spin tub and get centrifical switch to close and unit runs . took out tub and belt and started, found motor tries to turn but not enough to hit start up speeds. Have 240 volts to unit and correct voltages to neutral. Customer had another dryer on site, one he is replacing has the same issue. I tested and brought a third dryer from my shop,tested and working there. Same problem... any ideas



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#2 sh2sh2

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Posted 20 September 2013 - 04:42 PM

got to be a electrical supply issue, 3 dryers wont have the same issue...now what the problem could be is out of my leauge



#3 RegUS_PatOff

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Posted 20 September 2013 - 04:56 PM

... Have 240 volts to unit and correct voltages to neutral.

voltages should be measured at the Dryer Power Cord Terminal Strip

while the Dryer is trying to run.

 

Is this a 3-wire OR a 4-wire Dryer Cord ?

 

 

 


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#4 JJ Surfer

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Posted 21 September 2013 - 12:35 AM

I'm betting its a 3 wire plug with a bad ground/neutral. A good test is to wire L1 and the neutral to a 110 outlet and you should be able to run the motor. This way you can show the customer they need an electrician

#5 drpolm

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Posted 21 September 2013 - 01:38 PM

Yep it's a three wire plug but i had customer change out plug as it was the same one used on all three dryers. Same issue, will try the 110 wiring just to test. Is it possible you can have a bad neutral leg in the 230 volt circuit but still show 115 volts to neutral at the terminal strip? customer had an electrican to house said that end was ok 



#6 RegUS_PatOff

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Posted 21 September 2013 - 06:15 PM

... Is it possible you can have a bad neutral leg in the 230 volt circuit but still show 115 volts to neutral at the terminal strip?

voltages measured  while the Dryer is trying to run ?


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