Author Topic: Maytag Dryer not getting hot ENOUGH, new thermostat installed  (Read 16075 times)

Offline Shotgun

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Ok, so I'm no fix-it-all repair guy, but being an engineer, I can usually make stuff work.

My wife complains that the dryer is not getting the clothes dry very fast anymore.  She further complains that the "Intellidry" function is not working properly.  She claims the unit turns off prior to the clothes actually drying.  

First things first, I clean out all the lint.  Truth be told, I do this every once in a while anyway, and this was not a problem.  I double check flow through the 4 inch duct, no issues.  The line to the outside is A-OK and unobstructed.

I think to myself: "Ok, how hard could this be?  Faulty sensor?  Bad/open coil?"

I open the unit and quickly find a single heating coil element with 4 "sections" and a heat element thermostat mounted on top of it.  

After some playing around, I try to eliminate the thermostat as a problem by unscrewing it, and physically removing the element from the heating coil so that heating coil operation will not change the sensing.  This causes the heating element to go super HOT, so I turn it off before it blows or melts or whatever.  I deduct the coil is WORKING, and seemingly, working properly.

Next, I deduct that the thermo fuses are intact, otherwise, the element would not heat at all.

I further deduct the problem is a faulty thermostat.  I go online, order a kit with identical parts, receive it today, and install it.  NO CHANGE.

The unit still spins, the unit still heats,  but the unit takes 3-4 times longer to dry clothes.  The outgoing air flow is warm, but not HOT.  I have read somewhere outgoing flow should be roughly between 120F-160F.  I think the outgoing heated air is struggling to reach 100F.

The "Intellidry" function(s) have not been tested.  I figure this must be some type of humidity tester which is not being tripped due to low heat causing low evaporation.  *shrug*  Perhaps, this faulty sensor is causing the unit to lower heat?  I doubt it, since this feature turns the machine OFF, not DOWN, right?

Any input?

Model PYE4558AYW

Offline JWWebster

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #1 on: March 03, 2010, 02:49:58 PM »
Those dryers are notorious for having a stripped blower wheel. Here is your blower wheel. Notice the flat spot in it. Look on your blower wheel and you will see that yours is gone. This makes the clothes take twice as long to dry. I fix em all the time. The link above is your exact part and buying it there supports this site. Thanks

I have some repair photos here
« Last Edit: March 03, 2010, 02:52:00 PM by JWWebster »
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Offline Shotgun

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #2 on: March 03, 2010, 03:28:31 PM »
With all due respect, the blower looks fine.  I have taken some pictures of it, but the camera is being a b1tch.

After removal of the front panel, I cannot locate the "flat" section you reference in your post or the pictures, but the wheel itself looks ok, turns ok, and does not appear broken or stripped.  Am I missing something?. 

Is it possible the "cycling thermostat" is causing problems?

Offline Shotgun

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #3 on: March 03, 2010, 04:28:13 PM »
Also, I am glad to hear that the linked site supports your site -- they are who I ordered the replacement thermostat from -- SUPER QUICK!

I will continue to work with this, and post some pictures if I can hold back from smashing this camera into dust.


Offline jumptrout51

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #4 on: March 03, 2010, 04:56:23 PM »
The premature stopping would suggest a cycle thermostat is at fault.
Take a Kid fishing.

Offline Shotgun

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #5 on: March 03, 2010, 05:09:38 PM »
The "cycling thermostat" is itching me...what does it do exactly?  Does it cause any feedback of sensing to the power of the heating element?  If this thermostat does not register "too high" or "in range", what is the effect?

Is there a way to test functionality of this device while not in action?  Will a faulty, defective, or damaged thermostat vary resistance or visible markings?

Offline Shotgun

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #6 on: March 03, 2010, 05:12:32 PM »
I see from this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=49277&diagram_id=683416#d683416

that this cycle thermostat is the unit that actually DOES control heat output.  Is this true?

Offline JWWebster

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #7 on: March 03, 2010, 06:21:45 PM »
What about the filter housing is it clear? What about going to the outside of the building is that vent clear?
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Offline jumptrout51

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #8 on: March 03, 2010, 06:24:48 PM »
You can only test the large terminals on the cycle stat for continuity.
Yours has continuity or it would not work at all.
It is inexpensive. Replace it.
Take a Kid fishing.

Offline JWWebster

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Re: Maytag Dryer not getting hot ENOUGH, new thermostat installed
« Reply #9 on: March 03, 2010, 06:32:01 PM »
The way that thing works is: Power goes through the bigger terminals to the heating element. The smaller wires are powering up a tiny heater inside the thermostat. Warming the bi-metal makes it shut down faster for permapress and delicate. So the basic temp setup can all be done by one bi-metal instead of 3 or 4 like old days and that means less wiring and less timer issues to deal with. So.. if the air flow is ok the next thing to deal with is the
control thermostat. If that does not fix it then a contact in the timer from that thermostat could be burnt. If the timer is ok then the circuit breaker may be faulty, getting hot and shutting down on the heat load side.
« Last Edit: March 03, 2010, 06:35:16 PM by JWWebster »
May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

 

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