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Maytag Dryer MDE7600AYW

No heat burnt connection

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5 replies to this topic

#1 tpoindexter

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Posted 13 August 2013 - 08:45 PM

Had a dryer with no heat today. Checked the power outlet and found 220 volts as needed.

Pulled apart and found no problems with any of the normal culprits.

Found no power coming from the motor to the element. After further checking I found the blue wire coming to the motor from L2 didn't have required voltage.

So I go back around behind and find the blue wire burnt in two at the terminal block and the first couple inches kinda melted.

I fixed the wire, checked the rollers and idler to ensure they were turning freely.

After putting it together turned the drum by hand and it didn't seem to turn too stiffly.

In my mind I'm thinking the motor was pulling too many amps. I didn't check the amp draw because frankly I didn't know what to do if it was drawing too many amps.

Question: What could have caused this ?


Edited by tpoindexter, 13 August 2013 - 08:50 PM.

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#2 fairbank56

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Posted 13 August 2013 - 09:15 PM

  Blue wire isn't used for driving the motor, only goes through motor switch for heater circuit.

 

Eric



#3 tpoindexter

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Posted 13 August 2013 - 09:18 PM

So maybe cycling thermostat? Loose connecting at terminal block?


Edited by tpoindexter, 13 August 2013 - 09:22 PM.

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#4 RegUS_PatOff

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Posted 13 August 2013 - 09:18 PM

... blue wire burnt in two at the terminal block and the first couple inches kinda melted.
... What could have caused this ?

you may have a loose nut  :whistling:


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#5 tpoindexter

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Posted 13 August 2013 - 09:28 PM

Kinda what I'm thinking to Reg. Funny enough I didn't take note if it was tight when loosening to repair. But I did tighten the ground about 3/4ths of a turn and L1 about 1/4th after doing the repair at L1.


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#6 fairbank56

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Posted 13 August 2013 - 09:28 PM

In my mind I'm thinking the motor was pulling too many amps. I didn't check the amp draw because frankly I didn't know what to do if it was drawing too many amps.

Question: What could have caused this ?

 

  The motor is driven via L1 and neutral. Blue wire is L2 and only goes through motor switch for heater circuit. As Reg suggested, a loose connection or faulty wire terminal connection would overheat and cause the wire insulation to melt and wire to part.

 

Eric







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