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Re: LGR7648KQ1 model, dosen't seemd to have in lint in
The thumping noise is a stress crack from poor construction when thr drum was made. I have the exact same problem and found the crack when I removed the top cover by removing the rear upper brace support screws and bracket, then sliding the top dryer panel towards the rear about 3.5" and then lifting it off for complete drum inspection. Rotate the drum by hand and you will see the crack...Mine is at the front, next to the drum seam.... We should all get together and file a class action suit...I'm sure this is a manufacturer fault related problem with this model..
The crack is probably allowing air to bypass the normal air flow through the filter too... Richard
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First thing is to check that your dryer is venting properly. If it is restricted this may occur. There are vent cleaning kits that you can purchase to make it easy to clear your vent from the rear of the dryer to the outside exhaust. Check were your link screen slides in at and inspect it for excess link build up. Any more questions you can contact us a dryer repair service.
If you are collecting more on the outside of the house means the lint filter has a tear in it and the lint in being pulled through the tear and pushed out the exhaust. It sounds like you need a new filter but this isn't cheap. If you do it your self it will run about $70 if you get a repair man it will cost about $150.
I recently solved this problem on my ELECTRIC dryer by taking apart the lint
collection area. Some dryers allow you to do this by removing a couple
screws surrounding the lint screen holder. Others require some
dis-assembly of the top and front panel.
Once you have access behind or below the lint screen, use your hands or a
strong vacuum (shop-vac) to clean out any collected lint that has
fallen below the collection screen and settled in the exhaust duct. I
pulled out about 100 cubic inches (~1.6 liters) of collected lint, cat
hair, and debris that was obstructing air flow.
Obstructed airflow can cause metal parts near the electric heating element to
overheat and scorch clothing and is a serious fire hazard. I expect similar problems can occur with gas dryers.
Sounds like one of the cavity switches is bad. Open back of dryer, you will see wires that attach to little clip next to each other. Try jumping wire from one side to the other, do one switch at a time and try dryer to see if heats, if you get heat replace that switch. These switches burn out if dryer gets to hot, usually from to much lint in duct work. Also vacuum out duct work in wall and on back of dryer.
Poor air flow would be my guess. How long is the vent hose? Does it have more than one angle/turn before venting outside? Is the lint gathering around the outer edges of the door? Keeping the length of air travel shorter will improve the operation.
You need to check the dryer INTERIOR to ensure there's no lint accumulations on or around the heating element. The exhaust systems on dryers are not perfect and SOME lint often gets by the lint screen and can start the collect inside the dryer. The lint will begin to smolder and give off an odor if it sits on the heating element housing. Make sure the dryer is unplugged before attempting to access the interior. If the model number you provided is correct, the heating element will be located under the drum on the right-hand side. You will need to lift the dryer top and remove the front panel (with the door) to access the inside and vacuum. Let me know if you need further assistance. I hope this information is helpful to you.
sounds like you have a restricted vent . check not only the hose but also the house venting. usually clogged at the screen or flapper outside. another ppular place for a buildup is the inlet under the lint screen. without proper airflow lint collects on element. take care of the quickly as it could lead to a fire.