The Air Flow warning keeps coming on and laundry will not completely dry, I always clean the lint vent and the vent to the outside of the house but still a problem

The most common problem for a dryer to take more than one cycle to dry is restricted air flow.

1.when the dryer is running go outside and find where the venting is located, there should be a good amount of air flow.
2. if the air flow is not good look at the ducting coming from the back of the dryer and make sure it is not kinked or pushed back to far.
there is usually lint build up some where along the ducting or at the end of the duct where it vents to the outside.
3. if you have access to a leaf blower,this can be used to help clear any lint build up inside the duct from the dryer to the outside venting.
move your dryer out and take the leaf blower tube and stick it in the hole and turn it on.
the vented louvers need to be removed from the ouside of the house to allow the lint and things in the duct work to be blown out.

The valve resistance is 1995 ohms and the ignitor is 185.
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Inspect the dryer venting from the rear of the dryer to the outside vent hood of the home.
If there's a restriction in the vent--the clothing in the dryer takes longer to dry.
When the dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry.
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LG gas dryers are more sensitive to venting length and air flow resistance. The gas burner can cause a rapid increase in temperature compared to an electric burner.
Rapid temperature rise in a gas dryer leads to premature burner shutdown (longer time required to dry laundry).
The gradual temperature increase of an electric element is more "forgiving" in homes where the dryer venting is less than ideal.
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Problem:
The dryer has an auto dry feature which never fully dries the clothes so we wind up manually setting the dry time to an hour
Solution:
LG gas dryers are VERY temperamental in long vent set-ups. If fabric softener sheets are used in the dryer--clean the two stainless steel strips of metal on the lint filter housing with a SCOTCHBRITE PAD--scrub back & forth several times to remove the waxy residue from the fabric softener sheets. Most,if not all manufacturers do *not* recommend using sheets in dryers that have a moisture sensor (electrodes).
However--using a SCOTCHBRITE pad keeps the wax off those sensors which can be seen if looking *into* the dryer drum and at the lint filter housing.
If only *liquid* fabric softener is used in the washer--clean the dryer sensors once a month. Liquid softener also contains wax which can slowly accumulate on the dryer sensors from the laundry washed in the washer.
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Hold down on the 'More Time' and 'Less Time' buttons and press the 'Power' button. if it comes up with tE1 or tE2 you have a thermistor error.

LG DRYER MANUAL

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

The most common problem for a dryer to take more than one cycle to dry is restricted air flow.

1.when the dryer is running go outside and find where the venting is located, there should be a good amount of air flow.
2. if the air flow is not good look at the ducting coming from the back of the dryer and make sure it is not kinked or pushed back to far.
there is usually lint build up some where along the ducting or at the end of the duct where it vents to the outside.
3. if you have access to a leaf blower,this can be used to help clear any lint build up inside the duct from the dryer to the outside venting.
move your dryer out and take the leaf blower tube and stick it in the hole and turn it on.
the vented louvers need to be removed from the ouside of the house to allow the lint and things in the duct work to be blown out

2 things are needed to dry clothes. 1 is good air flow. Check to make sure that the dryer vent is not clogged or partially clogged with lint. Also make sure there are no kinks in the vent hose. With the dryer running you should feel good air flow blowing out of the outside house vent. The 2nd thing a dryer needs heat. Check to see that the dryer feels warm to hot when you reach in to tough the clothes. It is possible that the heat element has partially failed. Another thing to investigate is how well the laundry machine is spinning out the water in the spin cycle. This spin cycle is used to get as much water out as possible prior to placing the clothes in the dryer. The wetter the clothes when they come out of the laundry, the longer it takes to dry them.

Check your vent. Inspect the dryer venting from the rear of the dryer to the outside vent hood of the home.
If there's a restriction in the vent--the clothing in the dryer takes longer to dry.
When an LG dryer is functioning normally---the time required to dry laundry is determined by the *Sensor* located on the drum side of the lint filter housing and by the main control board.
When laundry is near dry--any Time Remaining on the control panel that is *not* needed will be eliminated---except for the last 6 minutes.
The final 6 minutes of any LG automatic cycle is for cooling down the laundry before the dryer ends the cycle.
If a dryer *counts down* to the last 6 minutes but the laundry is still not dry--the computer will allow the dryer to run until the laundry has dried or defaults (not drying within the additional time allowed).
Dryer vents that are longer than 8 feet with more than (2) 90 degree turns--can affect drying performance.
Setting the DRY LEVEL selector to *Very Dry* will solve most dryability issues. In homes with abnormally long vents--even the longer run time in the *Very Dry* setting is usually not sufficient to dry laundry loads.
Reducing the length of the vent or starting a second cycle becomes necessary to fully dry the clothing.
If a second cycle was started---only the amount of time that is needed to dry laundry will be used before dropping to 6 minutes and then the cycle will end with dry laundry. Bonus:
LG DRYER

Problem:
The dryer has an auto dry feature which never fully dries the clothes so we wind up manually setting the dry time to an hour.
Solution:
LG gas dryers are VERY temperamental in long vent set-ups. If fabric softener sheets are used in the dryer--clean the two stainless steel strips of metal on the lint filter housing with a SCOTCHBRITE PAD--scrub back & forth several times to remove the waxy residue from the fabric softener sheets. Most,if not all manufacturers do *not* recommend using sheets in dryers that have a moisture sensor (electrodes).
However--using a SCOTCHBRITE pad keeps the wax off those sensors which can be seen if looking *into* the dryer drum and at the lint filter housing.
If only *liquid* fabric softener is used in the washer--clean the dryer sensors once a month. Liquid softener also contains wax which can slowly accumulate on the dryer sensors from the laundry washed in the washer.


If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

I suspect you have a blocked air vent. A blocked vent will definitely extend your drying time. You may even find yourself having to run a load twice to get it fully dried. One way to confirm this is to disconnect the vent hose from the back of your dryer and dry one load with the machine venting directly into your laundry room. If that load dries quickly then you know the problem is a blocked vent. Most vents get blocked by lint near their exit to the outside. There's usually a screen at this location to prevent small animals from crawling into your house. Often this screen gets clogged with lint. Most vents are designed to allow removal and cleaning of this screen from the outside.

Hello,

The reason the dryer takes longer to dry is due to inadequate air-flow.

Very common problem. You need to call a
duct cleaning company and tell them to clean
your dryer vent. Rule-of-thumb: dryer vents
should be cleaned every couple of years to
prevent them from being clogged with lint and
causing lint fires. This is definitely your problem.
Good luck :)

p.s. one way to verify a clogged vent is
to go outside where the vent exits the house
and feel the air-flow. should have adequate air-flow.

first thing you need to know is that heat is not all it takes to get your clothes dry. what you need is to get the moisture from the clothes out of the dryer. the only way this happens is with air flow and that is what you are lacking.
the way to find out is make sure your lint filter is clean, then check to see how much air is going out of the house. most likely the vent is pinched off behind the unit causing very little air flow. if the vent is straight and as short as possible, then you may need to have your vent cleaned out fro the unit to outside your house.
clean or fix the vent and if you can remove the vent from the dryer, let the air go into your laundry room and try a load that way, if it works then you know the vent is the problem.

Check your vent hose for blockage and the vent housing for outside.If air doesn't flow through it to outside it cant remove the lint.

Did you clean the entire length of the vent ducting? Or, did you only clean the lint trap on the dryer and the exhaust vent outside? If you didn't clean the ducting as well, you may still have a clog somewhere causing your dryer to be "starved" for air. A dryer needs proper air flow to dry properly. One way to check is to turn the dryer on and go outside to the exhaust vent opening. Feel to see if you have sufficient air flow. If the air flow is weak, you have a clog. If not, you may have a high limit thermostat cutting off prematurely, not allowing the heating element to heat long enough. Check your ducting first and let me know if this helps.