Bad Timer Or Grounded Heater


Bad Timer Or Grounded Heater

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borgward
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Whirlpool LE5800XMN1 Heat element stays on except with Fluff Air Dry. Timer motor has continuity. How do I check to see if element is grounded or if the timer is causing the element to stay on when it should not be on?

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On the element you can simply check for continuity.. if there is no continuity the element is bad and you can also visibly inspect the element for coil breakage





borgward
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The element was broken. I could see parts of its coils in the bottom of the dryer. It was still getting red hot eventhough broken. That led me to suspect it was grounded. How do I check to see if the timer is functioning correctly? I have been told that a bad timer can cause the element to stay on when it shouldn't.
The element stays hot unless fluff dry is selected. The timer only advances when fluff dry is selected.


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Well if the coil is broken it must be touching the housing or something metal to allow it still to heat ... first the element needs replaced if you havent already done that? https://www.speedyapplianceparts.com/whirlpool-4391960-dryer-heating-element-replacement/





borgward
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Will order new element. I want to make sure the timer is working right before new element arrives. How do I check the timer to see if it is good or bad? I tried another timer but got the same results. (both timers could be bad) Both timer motors have continuity.

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You would have to get the timer specs.. there is no easy way of checking these unless you are an experienced tech. I am pretty sure your element has grounded and is the reason it is heating when it is broken.. You could still have a bad timer but I do not know which terminals need to be checked against which ones to see if it is a bad timer or not.. you might try youtube and maybe there is a video on it for your exact timer





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Timer is good. I am not getting heat with new element. I suspected the limit switch on the heater housing - probably went out because of way too much heat from the grounded element. I temporarily bypassed it. Element heats up, Stays off when it supposed to.
I now need limit switch. The label is not legible. Numbers stamped on it's flange:
250-40F
350
20042
What is it called, so I can order one?






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I do agree with your assessment about the hi-limit thermostat (sometimes called thermal fuse). Unfortunately, we do not have lookup for your model to provide you with the correct replacement part. You may want to contact the manufacturer for the replacement part #. 


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