Lg dryer wont turn off

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.

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the clean filter just blinks at start of a cycle to remind you to clean it. there is no lint filter sensor or anything like that. it goes out after you program your cycle and hit start. if dryer is not coming on, there is another issue. any fault/error codes?

you can unplug it for about 30 minutes, but I would venture to guess that the sensor which is located below the lint trap(if you look down the trap you will see to screws) is dirty and need to be cleaned, clean gently as not to break the sensor. Good Luck Tim

Clean any lint that got by the filter as best you can. If you can, get into the housing that surrounds the filter and clean it, but be careful not to damage the moisture sensor.
Check that the duct (behind the dryer) is clear of excess lint and has no obstructions (kink, bird's nest, etc.).

Good luck

The door switch is bad, the part number is PS346704
that is what it looks like. To get to it take the lint trap out and remove the screws around the lint trap door , be very carefull not to loose them down the lint trap shoot, next take a screwdriver and pry the front end of the top of the dryer up, it will just pop up. The switch will be right in front and center inside of the dryer attached by one screw. Make sure the dryer is unpluged before doing this. You can set the top back on by just pressing down on it after replacing the switch, it will lock back in.

Possible. something in fan unit...Turn drier upside down to try to get out open door / Unplug 1st!!....Good luck

F03 MEAN SENSOR DEFAULTPUMP OR LENT

its the flame sensor,or the coils on your gas valve

Is it a mechanical timer you turn (the "clickety-clank"-kind) to set the time? Sounds like something in it has been worn out. Shouldn't be too hart to get a replacement for it,t and you should also probably be able to replace it yourself unless you're very "un-handy", or want to play it safe.

check the door switch or the actuator for the door switch. hope this helps.