Dryer has started making a humming sound checked lint/vent trap

Question edited for clarity.

I can think of two things.

First wash the lint filter with dish soap and give it a gentle scrub with a plastic pot brush. Fabric softener can gum them up and impede the air flow.

Check the hose at the back for lint build up in the hose itself and in the tube at the back of the dryer. Finally check the flaps on the wall vent for smooth operation and they they are opening fully. If you have the old type with a circular flap, you might even find a birds nest in there!

Although the error light is telling you to clean the lint filter, it is actually registering reduced air flow and an overheat situation.

..

When your dryer spins to dry, water will start to collect at the vent, vent hose and lint trap areas. Make sure to fully remove the vent hose and lint trap and clean both of them out fully you may have to purchase a new vent hose. Make sure you secure both of these parts in after cleaning this should fix the leaking problem along with keeping your house firesafe

Lint Trap

The lint trap is a metal screen with a plastic handle that is located either near the corner at the top of your dryer, or inside the dryer door. In most cases, the lint trap is clearly marked. If your clothes are not drying properly, this is the first place to look because it is the easiest problem to solve. Remove the lint from your lint trap, and then see if your clothes get dry. If they do not, move to the next troubleshooting problem.
Vent Hose

To work properly, a dryer needs to be able to vent warm air. If the vent hose is clogged, bent or has a hole in it, your dryer will not work properly. Examine the vent hose to see if it is installed completely over the dryer exhaust vent, and to make sure it does not have a hole in it. Remove the vent hose to see if it is clogged. There are vent hose brushes you can purchase to clean the vent hose properly. Also check the exhaust vent on the dryer and the outside vent to make sure they are not clogged.

Thermal Fuse

If you have been running your dryer with a clogged vent hose for a while, you may burn out the thermal fuse. A burnt thermal fuse will allow the dryer drum to rotate, but the unit will not heat up. Your owner's manual will show you where the thermal fuse is and provide the part number you need to buy to replace it. Thermal fuses are available at most hardware stores and are easy to replace.
Heating Element

The heating element is the long, coiled wire in the dryer that heats up the air. Over time, the heating element can burn out or become defective. In some models, the heating element can be repaired; in other models, the heating element should be replaced. Refer to your user's manual to see where your heating element is and whether you can repair it or need to replace it.

no there shouldnt be any clothing but dust an lint from the cloths yea pull back panel off an clear out

try cleaning out your dryer vent. Remove your lint trap and use a flexible wire brush to clean deep inside, then remove your dryer vent hose and make sure all lint is clean from the dryer side of the vent and the vent hose all the way to the out side vent.
Sounds like it may be clogged with a build up of lint

If the clothes are coming out wet and hot after the first cycle then there is a blockage in the exhaust. This blockage could be at the lint trap or at the exhaust tube leaving from the back of the dryer. You need to check the lint filter area by removing the lint filter and with a flashlight look into the area where the lint filter was to see if there is any build up of lint. If so, you will need to clean this area. Also at the back of the dryer there is a hose that comes from the dryer to an outlet to the out side. This hose could be clogged with lint or possibly kinked to where the proper amount of air flow is not allowed to leave the dryer therefore causing the clothes to have to dry longer. Check these two areas first before going any further due to these checks are simple and may solve the problem.

Good luck hope this helped
Dave

Go outside and look at your flapper valve. Here is another news flash the lint filter can be clean but the air ducts in the dryer can still have lint build up in them. Pull out the lint trap also then using a flaishlight look underneath and around the lint trap area for lint build up. If you don't see anything there remove the rear vent hose and look both into the dryer and into the vent hose. Most likely you find either a kinded vent hose or lint buildup somewhere other than the lint trap itself. If you do find the source just do not use anything sharp to attempt to remove the lint. A bent metal coat hanger or a very large zip / spot ite works great for this task. Hopefully this will resolve your problem. If not post back and we can go from there.

Check for brisk air flow at outlet of vent hose (hose disconnected). If weak, remove lint screen and retry. If now has brisk flow, clean screen in hot water and detergent.

YOU HAVE A VENTING ISSUE WHICH CAUSE SLOW DRY STEP1 REMOVE LINT FILTER AND CLEAN WITH HOT WATER AND SOAP STEP2 MAKE SURE YUO'RE NOT CRUSHING YOUR VENT HOSE BY HAVING DRYER PUSHED TOO FAR UP AGAINST WALL STEP 3 CHECK OUTSIDE VENT TRAP IS NOT OBSTUCTED BY LINT IF THESES STEP DOESN'T WORK HAVE PROFESSIONAL CHIMNEY SWEEP INSPECT AND CLEAN VENTS

If you need further help, reach me via phone at https://www.6ya.com/expert/marlon_56d9a24f02585258