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fede2022  
#1 Posted : Thursday, October 26, 2017 11:35:08 AM(UTC)
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fede2022

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Joined: 10/26/2017(UTC)
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Hey guys!

I have an old maytag LDE512 electric dryer that spins but wont heat up. When i initially opened the dryer there was a wire going to the hi-limit thermostat that was completely burnt off, so i cut the burnt portion off and crimped a new connector on. I thought it was a simple fix but still dint heat.

I checked for voltage at the outlet got 249V, checked for continuity on the 2 cycling thermostats and hi limit thermostats which they both have. (this model does not have a thermal fuse)

Checked the centrifugal switch on the motor and it is working properly.

Also checked the heater coil for continuity and to make sure it wast grounded to the housing, all checked out good. Timer does not advance in auto-dry but will advance in timed -dry.

Looking at the wiring diagram, i checked the timer for continuity between BK9 and PU49 when the timer is in auto dry and there was none. It seems as though this is providing L1 voltage to one side of the heater element and so if there is no continuity there, 240V is not getting to the heater. Am i correct in that assumption?

Here's the wiring diagram (sorry its in rough shape its really old)

https://imgur.com/a/y9FMs
https://imgur.com/a/qNwoP
[IMG]https://imgur.com/a/y9FMs[/IMG]
[IMG]https://imgur.com/a/qNwoP[/IMG]

Thanks
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ThatGuy  
#2 Posted : Thursday, October 26, 2017 12:24:25 PM(UTC)
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ThatGuy

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With the timer set on any of the heating cycles, you should get continuity between BK9 and PU49. High or low heat. If not the problem is in the timer.
fede2022  
#3 Posted : Thursday, October 26, 2017 1:04:51 PM(UTC)
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fede2022

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Originally Posted by: ThatGuy Go to Quoted Post
With the timer set on any of the heating cycles, you should get continuity between BK9 and PU49. High or low heat. If not the problem is in the timer.


Thanks for your reply! Should i test to see if the heater works if i join the BK9 and PU49 wires together and run the dryer?
ThatGuy  
#4 Posted : Thursday, October 26, 2017 6:20:59 PM(UTC)
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ThatGuy

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I can't recommend doing that.

All I can say is be very careful and insulate any connections so they can't short or fry you.
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