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GE clothes dryer not hot

Discussion in 'Electronic Repair' started by DaveC, Aug 15, 2005.

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  1. DaveC

    DaveC Guest

    This GE dryer (USA 240v model) has 4 heat settings: Hi, Medium, Low, Fluff
    (no heat). It also has a moisture-monitoring setting ("More Dry" and "Less
    Dry").

    I presume the way 3 heat settings are accomplished is through the use of 2
    different wattage heater elements. For example, Low = 1000w element; Medium =
    1500w element; High = both elements.

    There is now one heat setting: medium. All the settings of the heat switch
    result in the same medium heat.

    The filter screen is clean and the airflow out of the vent hose (I
    disconnected it and checked the flow) is unchanged from a year ago (the last
    time I remember checking it out). Mains voltage verified. No overheating
    external connections.

    How is it possible for the dryer to fail in a mode that results in only
    medium heat?

    Just trying to get a few ideas before opening it up.

    GE model DBXR453ET3WW

    Thanks,
    --
    Please, no "Go Google this" replies. I wouldn't
    ask a question here if I hadn't done that already.

    DaveC

    This is an invalid return address
    Please reply in the news group
     
  2. Guest

    This may be right. Another way it can be done is with two equal wattage
    elements. Low = one element across 120 V, medium = one element across
    240 V, high = both elements across 240 V. More common in electric ranges
    that have off-1-2-3-4 pushbuttons instead of "infinite" heat controls,
    but possible in a dryer.
    Using your assumption, "low" element open, or faulty temperature switch.
    Open it up. :) Most GE washers and dryers will have a schematic folded
    up and taped somewhere inside the control panel. If you can read this
    and drive a DVM, you can make some tests of the switches and the elements
    at the control panel wiring, before having to pull the drum out to get at
    the elements. Unplug the dryer first and watch out for sharp edges of
    sheet metal inside it.

    Matt Roberds
     
  3. Consider that your dryer is not just 240V it is 120-240V any element
    can be running at 120V or 240V or 0V at any one time. It might also cycle,
    but I don't think any do that to control the temp.
     
  4. Close, 2 of the same wattage elements and usually a couple of different
    thermostats.
    One of the two elements broken, element grounded are a couple of
    possible trouble makers.

    Some take apart helps....
    http://www.applianceaid.com/take-apart.html
    http://www.applianceaid.com/ge-dryers.html
    http://www.applianceaid.com/grounded.html

    jeff.
    Appliance Repair Aid
    http://www.applianceaid.com/
     
  5. James Sweet

    James Sweet Guest

    Dryer elements that I've seen have all been 240v, I also had a Kenmore dryer
    that had separate button thermostats which cycled the element depending on
    the temperature setting, I figured most dryers did it this way.

    If you have two elements and are only getting medium then the low element is
    not working, either it's burned out, the overtemp thermostat is tripped or
    defective, or the switch is bad.
     
  6. pop the top and watch the heater coil when it's running... if it cycles
    "off" more than "on" (mine did about 10 seconds on and 50 off during a
    minutes, no matter which temp you set it to, then suspect a clogged
    exhause (not the little flexible 4" pipe leading from the dryer to the
    wall - but the REST of it - the part that goes from the wall behind the
    dryer to the outside... mine was clogged almost shut... when I cleaned
    it out, problem solved. Now the dryer can get enough airflow that it
    doesn't overheat the thermostat quickly (which shuts off the element),.
     
  7. CJT

    CJT Guest

    FWIW, I had the same thing happen with my gas dryer -- I think it's a
    common problem, especially with long exhausts.
     
  8. DaveC

    DaveC Guest

    Thus spake Steve Henderson:
    When troubleshooting externally (I've not opened it up, yet), I disconnected
    the hose and felt the temperature of the air. It was only lukewarm,
    unchanged, it seems, whether the hose is connected or not. Airflow is
    maximum, I think. This rules out airflow blockage.
    --
    Please, no "Go Google this" replies. I wouldn't
    ask a question here if I hadn't done that already.

    DaveC

    This is an invalid return address
    Please reply in the news group
     
  9. James Sweet

    James Sweet Guest

    Did you try the suggestions we already gave you? Are both elements
    themselves ok? Are the thermostats closing? Is power getting to them?
     
  10. Guest

    Hang a clothesline, save energy and money, and quit whining.-Jitney
     
  11. James Sweet

    James Sweet Guest

    That's not permitted in most neighborhoods these days, I guess it depends on
    where you live. Not only that, if I tried it in my area the trees would piss
    sap all over the clothes and ruin them before they even got dry.
     
  12. Guest

    That's not permitted in most neighborhoods these days, I guess it
    depends on
    where you live.(snip)

    Amazing how we give up freedom without even noticing, isn't it?

    Not only that, if I tried it in my area the trees would piss
    sap all over the clothes and ruin them before they even got dry.(snip)

    How is it that people managed to dry clothes before automatic dryers
    were invented?-Jitney
     
  13. James Sweet

    James Sweet Guest


    Well in the case of families in this area they had several acres of rural
    land and a sizeable portion of it was cleared for a back yard and field. Now
    days land in this area is far too expensive for that and you're lucky to
    have much of a yard at all and some trees for privacy. It's the price to pay
    to live in a desireable area with a dense population.

    Doesn't matter to anyway, I've never had to pay money for a clothes dryer
    and have always been able to keep them running with minimal effort. The cost
    of running one is trivial compared to all the other electrical crap in my
    house. I was just trying to help the original poster.
     
  14. Guest

    That's fine. I live in the Southwestern U.S. desert, and poeple could
    dry their clothes here in 15-20 minutes on the clothesline. Many want
    to do so, but are prevented by the blockfhurer facist HOA committes.
    This, in the middle of an energy crisis. I thought we fought a war to
    defeat fascism. Silly me.-Jitney
     
  15. Guest

    How about a nice hoophouse, aka polytunnel? A large 5 cent/ft^2 piece of
    4-year greenhouse polyethylene film stretched over $5 double-curved 1x3
    bows on 4' centers...

    Nick
     
  16. ~^Johnny^~

    ~^Johnny^~ Guest

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    Since when?
    I thought it was only disallowed in those gay communities under
    Neo-Nazi HOA's. :)


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    evZeh2qv6SoY6F5bSD8Icd0s
    =5LC4
    -----END PGP SIGNATURE-----
     
  17. ~^Johnny^~

    ~^Johnny^~ Guest

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    This is wrong. 120 V across both elements in parallel will be half
    the wattage of 240 V across a single element.
    I hated those systems. A quick way to spot a dodgy switch is with an
    inline wattmeter. Just cycle through the heat selections and watch
    the meter.

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  18. Asimov

    Asimov Guest

    "DaveC" bravely wrote to "All" (14 Aug 05 23:32:15)
    --- on the heady topic of "GE clothes dryer not hot"


    If the drier is okay then the other possibility is that the line is
    missing 1 phase. Measure each phase voltage to common/ground at the
    terminal block. Because the 2 elements are shared across each 120V
    phase, the medium setting might get 120V alright but the high setting
    also only gets 120V. This could be due to an open fuse/relay or wire,
    either at the main electrical box, or terminal block, plug, etc...

    A*s*i*m*o*v


    Da> From: DaveC <>
    Da> Xref: core-easynews uk.d-i-y:498519 alt.home.repair:644380
    Da> sci.electronics.repair:339721


    Da> This GE dryer (USA 240v model) has 4 heat settings: Hi, Medium, Low,
    Da> Fluff (no heat). It also has a moisture-monitoring setting ("More Dry"
    Da> and "Less Dry").

    Da> I presume the way 3 heat settings are accomplished is through the use
    Da> of 2 different wattage heater elements. For example, Low = 1000w
    Da> element; Medium = 1500w element; High = both elements.

    Da> There is now one heat setting: medium. All the settings of the heat
    Da> switch result in the same medium heat.

    Da> The filter screen is clean and the airflow out of the vent hose (I
    Da> disconnected it and checked the flow) is unchanged from a year ago
    Da> (the last time I remember checking it out). Mains voltage verified. No
    Da> overheating external connections.

    Da> How is it possible for the dryer to fail in a mode that results in
    Da> only medium heat?

    Da> Just trying to get a few ideas before opening it up.

    Da> GE model DBXR453ET3WW

    Da> Thanks,

    .... I worked hard to attach the electrodes to it.
     
  19. If it uses fuses, most likely is that one of the two fuses blew.
    First check the fuses. My cousin has a drier that does that periodically
    even though nothing is wrong with it and the fuses are sized correctly.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name is included in the subject line. Or, you can
    contact me via the Feedback Form in the FAQs.
     
  20. Mike W.

    Mike W. Guest

    If you can open up the back to get to the elements, a visual check will tell
    you quickly is one is open. That is the most common problem. You say it has
    4 heat settings, so there must be a switch or a set of buttons to control
    that. Those should be checked if the elements prove to be OK.

    "DaveC" bravely wrote to "All" (14 Aug 05 23:32:15)
    --- on the heady topic of "GE clothes dryer not hot"


    If the drier is okay then the other possibility is that the line is
    missing 1 phase. Measure each phase voltage to common/ground at the
    terminal block. Because the 2 elements are shared across each 120V
    phase, the medium setting might get 120V alright but the high setting
    also only gets 120V. This could be due to an open fuse/relay or wire,
    either at the main electrical box, or terminal block, plug, etc...

    A*s*i*m*o*v
     
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