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My LG Tromm dryer is not drying clothes. When I turn it on and look at the back of the dryer I notice a glow coming from the inside but it turns off within 10 seconds. Could this be the ignitor or gas valve? If either one can I fix it myself or do I need to call a tech?

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  • maxt12 Oct 16, 2010

    I can see the diagrams but the comments on the right are cut off. Can you copy and paste the text in an email so I can read all of them?

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  • LG Master
  • 3,051 Answers

Hello there i will post this in 2 or 3 post to ensure i get it all to you
Gas burners can generally be divided into two broad categories; pilot and pilotless ignition. Pilot ignition models have not been manufactured in a number of years, and thus tend to be older units, but there are still a significant number of them in operation.
The main components of the system (see Figure G-2 and G-2a) are the gas valve, venturi and burner chamber, and gas safety solenoids (in all models,) the flame sensor and the ignitor (in pilotless models,) or the pilot orifice and sensor (in pilot models.)
IGNITORS









































My LG Tromm dryer is not drying clothes. When I - htmlexp.gif

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Posted on Oct 16, 2010

  • 6 more comments 
  • Michael Thomas
    Michael Thomas Oct 16, 2010





































    Figure G-2a: Late-Model Split Coils




















































  • Michael Thomas
    Michael Thomas Oct 16, 2010



















































    Figure G-2: Typical Gas Burner
















































































  • Michael Thomas
    Michael Thomas Oct 16, 2010










































    PROBLEMS
    COMMON TO ALL BRANDS 2.




















    When the air in the dryer drum
    reaches the chosen temperature (as sensed by the thermostats) the gas valve
    will close and the flame will shut off.








    2-3(a) GAS BURNER SYMPTOMS
    AND REPAIR



    IGNITOR DOESN'T GLOW (PILOTLESS
    SYSTEMS ONLY)


    Nine times out of ten, if the
    ignitor is not glowing, it is burnt out. Unplug the dryer and remove the
    burner assembly as shown in figure G-4. Usually you will see a white or
    yellowish burned area and a break in the ignitor. If so, replace the ignitor.
    If you can't see an obvious break, test the ignitor for continuity as
    described in section 2-4(e).


    If the ignitor is not
    defective, you need to isolate whether the problem is in the control
    (thermostat) area, or at the burner itself.












    Figure G-3: Ignitors



























  • Michael Thomas
    Michael Thomas Oct 16, 2010


















    Figure G-4: Removing the Burner Assembly




















  • Michael Thomas
    Michael Thomas Oct 16, 2010

    The general idea is that if you have 110 volts getting to the burner assembly, then the thermostats are OK, and something in the burner assembly is bad. If you don't have 110 volts at the burner, then a thermostat or some other control is bad.

    Perform the following test:

    1) Unplug the dryer and open the burner inspection cover as described in the chapter about your brand.

    2) Unplug the main wiring harness leading to the burner assembly. (Figure G-4)

    3) Using your alligator jumpers, connect a VOM to the dryer side of the harness plug. (as opposed to the side of the harness plug that's connected to the burner.)
    4) Make sure no wires will get caught up in the turning drum. Set your dryer timer to the "on" position, high heat, and plug in the dryer. If your VOM reads 110 volts, something in the burner assembly is bad. If the burner isn't getting voltage, the problem is in one of the components of the heating control system: a thermostat, timer or temperature control switch, or motor centrifugal switch.

    If you trace it to the burner assembly, and you've already eliminated the ignitor as the problem, either the flame sensor or the gas valve solenoid coil(s) are bad. Unplug the dryer, disconnect the flame sensor and test it for continuity. If you have no continuity, the flame sensor is bad. If you have continuity, the coils are bad. Bring the burner assembly to your parts dealer to make sure you get the right coil assembly, and don't forget to bring the model number of the machine.

  • Michael Thomas
    Michael Thomas Oct 16, 2010

    also can i get the model number i have a repair manual for you

  • Michael Thomas
    Michael Thomas Oct 16, 2010

    Yes just send me your e-maiil address and i will post it to you and the model number will help greatly
    Best regards MIke

  • Michael Thomas
    Michael Thomas Oct 16, 2010

    Hey there again hey can you send me a e-mail with your make & model number
    To tbirdfan1@yahoo.com
    I have a repair manual and some more things that will help
    Best regards mike

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