Thread Number: 84012  /  Tag: Modern Dryers
LG Dryer air flow error 		[Down to Last]

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Post# 1083480   8/1/2020 at 21:37 (1,361 days old) by stevet (West Melbourne, FL)        

We have a model DLEX3570 LG electric dryer which has always given us the "Air Flow' error D80. This happens long before the lint screen is clogged and usually about when the clothes are fully dried. The filter is cleaned after every load of clothes and if not, then immediately prior to drying the next load.

At first we saw that the lint filter chamber would collect lint inside the frame of the filter housing so we vacuumed and brushed it out and still the error. I made sure that the exhaust duct was not crushed behind the machine and brushed out the ducting and vacuumed that as well. That worked for a few weeks and then started again.
I recently brushed it out and vacuumed the duct work again as well as blew it out with the leaf blower which really resulted in a large amount of lint blowing out on to the roof so I felt I might have solved the issue. But lo and behold, it started to give the error again.

This seems to be a very common problem with LG Dryers as the error is a common topic on various LG forums but LG never seems to address the root cause of the problem.

Is there an inherent design flaw in the sensor or the software? I have noticed that the newer Dryers have a redesigned lint filter and housing which seems like it will capture more lint as well as not allow so much to get past the filter and out into the ductwork.

I don't think I need to ask if anyone else experienced the same issue but rather, has anyone found a viable solution to this annoying issue?




Post# 1084725 , Reply# 1   8/11/2020 at 11:25 (1,352 days old) by stevet (West Melbourne, FL)        
Nobody willing to offer a guess?

 I was surprised to not have anyone chime in on this popular error on the LG dryers. I had hoped that maybe one or two of our members who might service LG's would have some insight into the issue and possible solution.

It happened again over the weekend and I am now looking into changing the lint filter housing to the newest style they are using which seems to seal off the lint leaks around the screen itself and also allows for more air to be drawn through the housing and filter assembly. It has a pouch like design instead of a simple flat filter screen

Post# 1084736 , Reply# 2   8/11/2020 at 13:16 (1,352 days old) by eurekastar (Amarillo, Texas)        

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I have an LG 3900 dryer that's only been in service for about six weeks.  I haven't encountered that problem yet.  Hope someone else will chime in!
Post# 1084737 , Reply# 3   8/11/2020 at 13:24 (1,352 days old) by Golittlesport (California)        

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I have a gas LG dryer 3571 (which I think is the same as your electric dryer but in gas.) I have never experienced that error code. Like you, I clean the filter after each load and the duct in my house runs up through the attic and exits on the roof. It's a rather long run and concerns me, so I clean it out at least once a year. I also dismantle the filter housing and vacuum out the dryer's "innards." So we seem to have the same maintenance routine. Sorry I cannot offer any input as to what is causing your error code.

Post# 1084738 , Reply# 4   8/11/2020 at 13:36 (1,352 days old) by DADoES (TX, U.S. of A.)        

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I'm curious by what mechanism the airflow rate is monitored.  A pressure sensor of some type, or a thermostat/thermistor triggering on increased temperature/overheating somewhere in the system?

Post# 1084743 , Reply# 5   8/11/2020 at 15:16 (1,351 days old) by GELaundry4ever (Nacogdoches, TX, USA)        
lg dryer airflow

 I've been curious about the lg dryer airflow rate. I believe the normal cycle gets up to 143 degrees Fahrenheit. I believe it may be 65 feet of air.


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