Question about GE Profile Harmony DPGT750GC Gas Dryer

11 Answers

Heat is unpredictable

I've read your solutions to similar problems, but cannot follow a thread to resolution. I need help. My dryer is operating with heat flow that has become unpredictable over the past 2 days. I can get clothes dry, but it takes multiple cycles. Sometimes the heat comes on intermittently over a 30 min cycle; sometimes the heat only comes on for the first min of a cycle and then not again; and finally, sometimes the heat does not come on at all. There is a consistent noise that is new and is hard to describe (maybe plastic on plastic grinding). I've cleaned the ducts from the front of the dryer all the way to the outside of the house, and didn't want to go further without better instruction.

Thank you,
drakesnest@q.com

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  • 2 more comments 
  • drakesnest Nov 18, 2008

    Do you have a repair manual for this dryer, or further instruction? I'm flying blind here, but want to take on the challenge of fixing this myself (with your help).

  • drakesnest Nov 18, 2008

    For Master_Tech:
    I've read your solutions to similar problems, but cannot follow a thread to resolution. I need help. My dryer is operating with heat flow that has become unpredictable over the past 2 weeks. I can get clothes dry, but it takes multiple cycles. Sometimes the heat comes on intermittently over a 30 min cycle; sometimes the heat only comes on for the first min of a cycle and then not again; and finally, sometimes the heat does not come on at all. There is a consistent noise that is new and is hard to describe (maybe plastic on plastic grinding). I've cleaned the ducts from the front of the dryer all the way to the outside of the house, and didn't want to go further without better instruction.

    Thank you,
    drakesnest@q.com

  • drakesnest Nov 20, 2008

    If you are an expert in software, computers, etc., please do not offer a solution. I need a large appliance expert.

  • drakesnest Nov 20, 2008

    Can you provide more instruction? If it is the blower, what should I know before removing?

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Gas valve coils sound like there breaking down when they heat up.

Posted on Nov 20, 2008

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Hello drakesnest, From viewing the replys you have and notes to efforts you have applied I suggest checking the venting to & from the unit. A extensive 'Preventive Maintance' could solve the errors. #1- close the gas line to the unit. #2-disconnect the gas line and exchaust duck. #3-move the unit to access of an air compressor, layunit on the side & blow the insides out. #4-check the wings in the drum for leaks. #5- good luck.

Posted on Nov 20, 2008

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Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.


Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws.

Posted on Nov 20, 2008

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HI,

1.If you have problems with a gas dryer, it is very important to first check for gas leaks to minimize your risk of fire, explosions, or prolonged exposure to gas vapor. Always turn off the gas before attempting a repair even if you have confirmed there are no leaks. Electrical components have the potential to form a spark upon disconnect which will ignite the gas.
2. Never attempt to repair a faulty gas valve. This is a "replace-only" dryer part, and attempts to rig the valve may result in fires or explosions once the gas is on.
3. As with any appliance that uses or generates electricity, always wear rubber soled shoes, avoid puddles of water, and grip only the insulated ends of your tools.
Please dont rate me if not satisfied.
Thank you..

Posted on Nov 20, 2008

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There are only 2 things that cause this issue, one is the electronic igniter for the gas burner, the other is thermostat that is located in the air stream, these parts are cheap and easy to replace.

Posted on Nov 20, 2008

  • yadayada
    yadayada Nov 20, 2008

    Most of the responding experts are guessing on what's wrong, or way over complicate the fix, why because they are fishing.

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I've run into the intermittent heat problem before on this unit and it turned out to be the coil on the gas valve. Unfortunately, the coil is not available as an individual part, but only as part of the entire gas valve. You can get a new valve and just switch out the coils to make your job easier. GE part number for the gas valve is WE01X10201 . This unit is actually manufactured for GE by LG, and the LG part for that would be 5221EL2002A which would save you at least $25 over the GE part number. (the box from GE will likely have the LG number on it too) It is possible that the inverter board is bad, but not as likely. Noise sounds like you will have to check out the blower wheel to see if it is rubbing.

Posted on Nov 20, 2008

  • Carl Schulzetenberg
    Carl Schulzetenberg Nov 20, 2008

    If you need advice on disassembley, let me know and I'll be happy to assist.

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It is either the heating element or the thermostat which is faulty, in most cases this is the thermostat that has developed a problem. here is the link for the user manual and troubleshooting tips: http://www.ajmadison.com/ajmadison/itemdocs/PDF_GE_DPGT750EC_01user.pdf

I hope this helps
regards

Posted on Nov 20, 2008

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  • Master
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Hi,

Initially, you made three (3) significant descriptions:

  • operating with heat flow unpredictable and therefore heat comes on intermittent
  • dry, but it takes multiple cycles
  • consistent noise that is new and is hard to describe (maybe plastic on plastic grinding).
Based on the above, a few ideas to explore:
  • heat production/flow intermittent/unpredictable - suggests a blower motor failure or its controller;
  • insufficient heat - heater works but cuts out early
  • noise - blower motor or its vanes blades scraping against something.
Summing the three above, probabilities forwarded:
  • the blower fan or its controller is faulty;
  • the hot air is not moving across and as fast as it should be
  • this cause heat to be localized in one area other than the clothes to be dried;
  • thermostats sense heat built-up (built not where it is wanted (clothes);
  • cuts gas supply to lower heat.
probable conclusion:
images of the units exloded parts diagram maybe found here, here or here.
Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 18, 2008

  • Louie  Role
    Louie Role Nov 20, 2008

    The blower motor is on the bottom of the unit, at the very rear. Depending on the version that you have, the kick panel has to be removed to gain access.

    Incidentally, another some experts have forwarded alternative views. It would be to your advantage to consider their views as well.

    The exploded diagrams should give you an idea of parts location.


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Sir,

click this link for more info

thanks

Posted on Nov 17, 2008

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Hi, it sounds like the problem is coming from either the ignitor or the heat sensor. I would replace the ignitor first. If that did not fix the problem, I would then repalce the heat sensor. Since these two parts work together, its hard to determined which is the fault, unless you know how to use a multitestor.

Posted on Nov 17, 2008

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  • GE Master
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That is probably a faulty gas valve or the thermocouple that controls the valve is faulty.

Posted on Nov 17, 2008

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