Author Topic: LG Dryer long dry time  (Read 5183 times)

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 site helpful.

Offline rego

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Re: LG Dryer long dry time
« Reply #20 on: February 18, 2012, 07:18:07 AM »
 O0   I sure hope that's the fix...been banging around that sucker for too long :D  luckily the customer is very understanding.  Gotta love saying "I don't know what's wrong with it, but will find out" :P

Offline AJ

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Re: LG Dryer long dry time
« Reply #21 on: February 18, 2012, 07:25:30 AM »
Service manual sent via PM.
Hope you find our site helpful.

Offline rego

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Re: LG Dryer long dry time
« Reply #22 on: February 21, 2012, 03:34:06 PM »
Crazy, but customer called yesterday and the dryer worked great all weekend.  We are going with "if it aint broke don't fix it" but let him know about the igniter gap and that will be the way I go if it act's up again... :D ...I'll update if things change...
Thanks Guys!

Offline ApplianceGuru

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Re: LG Dryer long dry time
« Reply #23 on: March 16, 2012, 03:57:23 AM »
I was the second company that got called out on one of these LG dryers not heating well.  They had the duct cleaner out a couple times too.  I decided to try something different then the first companies.  I decided to order and replace ALL thermostats/thermistors.

The parts came in, I installed them, and problem solved.  The dryer ran great for the first time in months.  Thermistor are notorious for testing good at room temp, but not working at operating temperatures.

It is good to know about the burner issue.
Appliance Heating & Air Tech

Offline john63

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Re: LG Dryer long dry time
« Reply #24 on: March 16, 2012, 11:31:23 AM »
<<<Thermistor are notorious for testing good at room temp, but not working at operating temperatures>>>

************

THERMISTORS on LG dryers are among the most reliable.
I cannot recall ever having one fail---during 9 years of warranty service---a fact mentioned often at training seminars as well.

************

<<<I decided to order and replace ALL thermostats/thermistors.>>>

<<<The dryer ran great for the first time in months.>>>

************

This is likely the result of having replaced the THERMOSTAT on the back-end of the Heating Element Housing.
This THERMOSTAT was revised/changed (Service Bulletin).


Offline ApplianceGuru

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Re: LG Dryer long dry time
« Reply #25 on: March 18, 2012, 08:19:49 PM »
LG may have good thermistors.  I wasn't talking about LG directly.  I just mean thermistors in general.  Oven temp thermistors, GE fridge thermistors, Samsung fridge thermistors, Whirlpool Duet dryer thermistors, and thermistors in general are notorious for testing good a room temp.

Some manufacturers tell you to test the thermistors at operating temp, and Samsung has a special procedure where you dip the fridge thermistor into salty ice water to test it.

I used to test thermistors at room temp, but it was such an undependable way of testing a thermistor that I stopped wasting my time.  They would test good, but the problem wouldn't go away until I replaced the thermistor.  Go figure.!
Appliance Heating & Air Tech

Offline rego

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Re: LG Dryer long dry time
« Reply #26 on: June 20, 2012, 12:54:16 PM »
Just had a call back on this one again...intermittent drying...I will be checking the gap on igniter and if correct replacing all thermastat's and hopefully be done with it...I'll let you know what I come up with.

Offline rego

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Re: LG Dryer long dry time
« Reply #27 on: August 02, 2012, 02:55:45 PM »
Ya gotta love this.  Checked gap on igniter and all good.  Decided the only thing would be a hokey circuit board.  Replaced still no good.  Went back to my original diagnosis months ago and ordered another gas valve.  Bingo, works like a champ.  I could have bought them a new dryer with the time and material into this thing and my first diagnosis was correct just a bad gas valve out of the box!  Happy it's going but more than a little disgruntled about the original part.  Lesson learned...go with my gut and even new parts if they don't solve the problem.
Great info from this topic though...thank you all!

Offline AJ

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Re: LG Dryer long dry time
« Reply #28 on: August 03, 2012, 10:37:05 AM »
Thanks for the update.  O0
Hope you find our site helpful.

 

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