Question about LG DLG5988 Gas Dryer

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LG DLG5988W Gas Dryer (NO HEAT)

My DLG5988W will spin and run through its cycles, but it will not turn on the gas burner to create heat.
The "COOLING" light stays on..
No good service techs in my area and no one will even talk to me about it.


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  • Beach94Ag Dec 07, 2007

    I have the same model and problem. It is only 8 months old.

  • DinahMight Dec 14, 2007

    i have the same issue with my LG DLG5988W gas dryer. i get no heat, have to run the clothes through 3-4 times, the cooling light comes on, and i get a "whump whump whump" when it starts up. manual drying is even worse for me. i think i get absolutely no heat whatsover regardless of how i set the dryer.

    if you view epinions on the DLG5988W dryer you'll see at least ten other people with the same issues with their DLG5988W dryers.

    clearly LG has underbuilt the dryer. the whump whump whump noise at startup is apparently due to a bad roller. sometimes the drums become non-cylindrical or damaged, as the drum appears to be paper-thin (from what i've read). finally, motherboards go out consistently on this model. google for yourself and see if you see the same thing as i have seen.

    i don't have weeks to deal with BestBuy's warranty service (they initially refused to lookup my receipt for the extended warranty i purchased, so now i have to find it - not nice), nor do i have the time to wait for LG to dig up another motherboard. check out the guy that went through three motherboards and it still isn't working right.

    i also have the 2777 (?) washer, which dripped chlorine bleach on my clothes and ruined some of them. the washer doesn't fully empty the bleach container after each load, so i have to remove it, rinse it out, and reinsert it. nice. NOT.

    i may look in craigslist for someone with an old refurb'ed maytag washer / dryer. i'm too busy to deal with long waits on service line phone calls, repair people not showing up, and bogus products.

  • Uncle Ed Dec 20, 2007

    I fixed mine!

    I went to the shop that LG told me to order parts from and bought the control boards. They were about $140.00 for both.

    The unit was very easy to disassemble and the dryer works fine now.

    The sensors were very easy to check using a butane lighter and a cheap Radio Shack volt meter.

    I simply used to meter on ohms and warmed up the sensor with the lighter until it changed states and verified if the sensor was working or not.




    After checking all of the sensing devices I determined the only thing I could not check was the control boards and replaced them.

    The cooling light stays on still and I can't determine why as of yet, but I will figure it out and post the results for all of you to read.


    The tub rollers were not rolling free due to hair and lint from the unit getting released within the dryer.

    This stuff builds up on the axle for the roller bearing and stalls the roller wheels.

    Clean out this stuff before re-assembling the unit.

    Ours runs every day as we have 7 people in our family

    (5 of them girls) and the poor thing just runs almost constantly.

    The only thing I am not happy with is the lack of knowledge by the service providers around me on these units.

    My washer has never failed me yet and it runs just as hard as the dryer.

    Over all I am happy with the both of them and their performance.


    When I ordered the parts they were there the next day UPS Ground!

  • Anonymous Jan 25, 2009

    How do you take one of these apart/ Anyone have a step by step guide? Thanks.



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I'm pretty sure that the cooling light is always on and blinks when it is cooling. I look at my brother's and he has the EQ bar and it acts the same.

Posted on Sep 01, 2009

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We're having the same problem after 11 years with the machine. I've ordered a replacement safety thermostat. Does anyone have any insights to add?


Saftey tstat is open
Highlimit tstat is closed
Ignitor at 300 ohms

When I jumper the saftey tstat, I get an ignition cycle, but the flame shuts down earlier than I'd expect. Could be a draft issue as the dryer is all pulled apart? Plan is to replace the safety tstat and then reassemble and see if it works.

Before I disassembled the dryer, I did find that draft was ok and there was a good amount of air coming out the external (outside the houes) exhaust pipe.

Posted on Feb 11, 2017

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Got mine repaired.. They replaced the gas valve. Initial review is that its not drying as well as when it was new. I will use some more this weekend to confirm.

Interesting point on the washer....i have the same one i think (2277? - can't remember either). I've probably had the same issue with the bleach and never made the correction since I don't inspect the clothes before moving them over to the dryer. I will keep my eye out for that issue.

Never had the clunking noise though from the dryer.

Actually, I've been pretty happy with the two units until the dryer stopped heating...

Posted on Dec 19, 2007

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I talked to LG today and they told me NOT to use dryer sheets because it turns off the sensors. Hope that helps.

Posted on Jun 29, 2009

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This dryer has issues with senser. and truning the gas on and keep ihe gas on.the senser get over heat and trun the gas off.if you move the heating senser. out of place. it will work.but it is dangers .this is to just test the dryer only.

Posted on Dec 19, 2007

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