Author Topic: LG Dryer long dry time  (Read 6099 times)

Offline wildimaginations

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Re: LG Dryer long dry time
« Reply #10 on: November 02, 2011, 09:43:25 AM »
I would put a safe bet and recommend you replace the following parts:

The hi limit switch
The gas valve
The drive motor
The control board
The display board
The ignitor

Did I miss anything??   :rofl: :D
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Offline rego

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Re: LG Dryer long dry time
« Reply #11 on: February 17, 2012, 01:51:06 PM »
This one is driving me crazy.  Customer finally wanted me to take a look.  It would fire for a couple minutes then stop, would try again, igniter glow's and nothing.
Unhooked vent from wall and cycled well and ran well.  Found a huge clump of lint at the outside vent. customer cleaned out and all was well for awhile.  Then same problem.
Brought my lint eater and cleaned the entire vent system and got a decent amount out.  Ran unit and still same problem.
All component's check within spec's so thought maybe the coils were going bad and not opening when hot.  Replaced gas valve no luck, same issue.
No vent blockage, new gas valve no change, all components check out and within spec.
Ran a diagnostic per dlg2524 manual and the first number's flash between18:98 and 1U:01; second moisture 255 (specs 70-239); drum temp between 30-31 (not sure if this is in celsius) drum was actually at room temp.
The first number's don't make any sense to me for a fault...am I looking at a bad control board or possibly weak high limit thermastats?
I jumpered the resetable therm. and no difference, could it be the automatic reset high limit on the blower?
So lost, could really use some help...must be something simple I'm missing...help!
Gonna try and run a video of the diagnostic I did.
Thanks folks!

Offline bigbuck

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Re: LG Dryer long dry time
« Reply #12 on: February 17, 2012, 01:57:01 PM »
Have you tried run it with exhaust off

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Offline rego

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Re: LG Dryer long dry time
« Reply #13 on: February 17, 2012, 02:02:28 PM »
Yeah, that's how I found the blockage.  Vent is all clear now from connection to outside.  Tried with disconnected again and still having same problem.  Could it have done this long enough to weaken the thermal cut out

Offline rego

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Re: LG Dryer long dry time
« Reply #14 on: February 17, 2012, 02:49:04 PM »
video of diagnostic.


Offline RegUS_PatOff

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Re: LG Dryer long dry time
« Reply #15 on: February 17, 2012, 07:57:23 PM »
... It would fire for a couple minutes then stop, would try again, igniter glow's and nothing.
Gas Valve Assembly :-\
After leaving this Earth, "Do you want the smoking or non-smoking section?"

Offline rego

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Re: LG Dryer long dry time
« Reply #16 on: February 17, 2012, 08:02:48 PM »
put new gas valve on...that was my thinking... :(

Offline john63

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Re: LG Dryer long dry time
« Reply #17 on: February 18, 2012, 12:35:14 AM »
Remove the BURNER ASSY.

Using a small ruler---measure the gap between the *right* side of the IGNITER and the tip of the BURNER TUBE where the metal edge is *peeled* back.

In other words---do NOT measure the gap from the right side/edge of the IGNITER to the ***hole*** in the BURNER TUBE.
The tip of the burner looks like a peeled banana.
The gap should be 1/8" to 1/4" (3mm to 6mm).

LG published a SERVICE BULLETIN for the very symptoms you've described (and for the model that you're servicing)

If the gap is too wide---simply bend (carefully) the IGNITER closer to the edge of the BURNER TUBE.

Offline rego

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Re: LG Dryer long dry time
« Reply #18 on: February 18, 2012, 06:54:23 AM »
Very cool!  Would never in a million year's have thought of that.  Thanks John!!!

Offline AJ

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Re: LG Dryer long dry time
« Reply #19 on: February 18, 2012, 07:05:30 AM »
Quote
Problem:
There is no gas ignition and NO HEAT in the dryer drum.

Reason:
Ignition does not take place because of incorrect gap between the igniter and the flame holder.
NOTE that the igniter, gas valve, nozle, and PCB are okay. They are NOT dedfective and do not need to be replaced.

Repair method:
Check the distance between the igniter and flame holder. It should be between 3mm and 6mm (1/8 - 1/4 inch). If the gap is not within this range, adjust it..

How to Adjust
See the attached pdf file.
Hope you find our website helpful.

 

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