Dle2532 lg dryer, cooling light is always on

Is this a DLG977W or a DLE5977W?

That is normal in the display. No reset. Check for strong air flow from exhaust.

I would check your vent. It may be clogged somewhere. Cool light is normal.

Hi,
I am using LG Tromm DLE2514 washer dryer. It 's running but didn't dried the clothes. I clean it's lint but still it's not working. The one thing i notice now is it's drying light is blinking and cooling light is turn on all the time during the cycle. So what's the problem with my dryer?

You may need to adjust the air flow on your dryer vent.
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.
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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.

LG DRYER SERVICE MANUAL

LG PARTS


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The cooling light stays on so that is not the issue. Check to make sure you have power in both hot legs of your 220v power outlet.

In normal operation as the dryer is drying the "drying" light flashes and the "cooling" light is on steady until the 5 minute cooldown at which time the "drying" light stays on steady and the "cooling" light flashes. click on this lg link
http://lgknowledgebase.com/kb/index.php?View=entry&EntryID=6253

if you cleaned your lint trap regularly then the dryer vent hose is probably clogged clean it out and that should take care of your problem

try cleaning real good. also the heating unit might be bad

The vent is clogged.  To make sure, disconnect the vent from the dryer and run the dryer normally.  If your clothes dry normally, then have a professional vent cleaning company take care of the vent.  
The cooling light will always stay on during the run.  When it is blinking, the heat has stopped and is in the cooling process.
If there is no heating, you have a problem with the high limit switch or something else electrical and needs to be addressed by a qualified LG technician.