I have LG DLE5955w ele. dryer and just brought a year ago. The dryer check lint filter light and airflow sensor light is always on during drying circle time. I check the lint filter is clean and the dryer duct vent is also not clogged. Could you tell me what's wrong for the dryer?thank you
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I'll take a stab that you use dryer softener sheets. These will deposit a coating on the two metal sensor bars (about 4 inches long, very near the lint filter inside the drum) which prevents the sensor from "seeing" that the clothes are still wet, so the dryer jumps to the cool down portion of the cycle. Clean the metal bars off and it should work again. (note: the bars are not in the cycle if you choose time dry instead of using the automatic cycles)
If you can find the wiring diagram inside the rear service panel of the appliance, follow the circuit to identify the overload sensors. There are several internal temperature sensors in the heater circuit that could be open.
Also check that the vent duct, all the way out to the discharge grill outside of the house, is not partially restricting the airflow. Note the same for the lint filter on top as well. Any restriction to airflow will cause poor or no heating problems.
Check for a good discharge of air with everything hooked up, outside where the dryer vent discharges, while the dryer is operating.
Plase feel free to reply your findings, and if you have any additional questions.
It sounds like you might think you are sending this to Siemans? You aren't, Fixya is a self help website, people just like you helping others. Some of us are Experts on various subjects, like dryers.
Dryers need airflow and this lint filter just works out that either the temperature is getting too hot, or there is not enough airflow.
Trouble spots are usually the following;
Exhaust hoses too long.
Sharp bends on hoses.
Birds nests in hoses. Happened to me twice!
Wet lint build up as the hot wet air hits the first bend.
Plastic concertina hoses are really bad for air flow. Use the aluminium ones that are almost smooth.
Or my guess in your case, is vent flaps that are not opening fully or blocked. The whole external assembly with flaps and tube should be changed about every 5 years
Go to www.repairclinic.com and enter DLE5977B. With luck, you will be presented with a list of common replacement parts and may be able to view a generic LG video showing disassembly. From this information, you may be able to pinpoint the cause of lint backup into your dryer.
Yes, dryer sheets can cause a build up on the sensors and the lint filter. Clean the metal contact strips off (just inside the door) with alcohol or windex and use a toothbrush and a little soap to scrub the lint filter. With the build up you don't get proper airflow and it won't dry right. Also, stop using dryer sheets or be sure and clean the cotacts and filter about once a month.