Dryer Drum does not spin

It sounds like there may be an issue with the motor or the motor switch. The thump sound you heard could be the motor attempting to start but not being able to, which can also explain why the drum won't spin. It could be a problem with the wiring, capacitor, or the motor itself. You may want to check the wiring to ensure there are no loose or damaged connections. If the wiring appears to be in good condition, it may be best to call a professional technician to inspect and repair the dryer.

one of the dry drum baffle screw might be lose are there might be something caught inbetween the dry drum front seal are rear

timer relay is bad

your drum glides/rollers are defective on the front edge of dryer where the drum rests,sounds most like the glides are glazed,not roller bearings but check it could be either

check for tripped breaker and proper voltage, next check to see if turns on if your getting air to the outside vent if ok the you need to open the unit up (unplug it FIRST) your be looking for the thermal fuse and or the cutoffs these will be attached to the blower housing assy ohm them out and also if electrical one check the heating element as well most cases this will solve your problems

So,. basically your drum doesnt turn. SO your getting heat still even though the drum isnt turning. Is this right? Sounds strange??? Do you hear any humming noise when you push the start button? I need to know a little more about the problem because im kinda confused as how you decribed the problem. Iv never seen a dryer heat but the drum not spinning. especially your model dryer. Its electric heat right? because if the drum doesnt spin, maybe your motor is bad. and if your motor is bad, then your heating element wont heat up because the centrifical switch in the motor is not switching to complete the circuit to the heating element. So this is why im confused when you said" Dryer heats when knob turned but when "push button" pressed, drum doesnt run." Because your belt wraps around the motor pully and the motor is what makes the drum turn. Like i said, i never seen this model dryer heat with out the motor operating. So if you can give me some more info, ill do my best to help you out....Thanks!!!!

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window.google_render_ad();There are many places & parts that could be causing your Whirlpool dryer to be noisy. To find out what is causing the noises, you need to find out where are the noises coming from.
Start the dryer and let it run for a while and listen to try to pinpoint where in the dryer the noises is coming from. Once you have an idea of the area, you will need to disconnect the dryer from the wall outlet and take the dryer apart.
Below you will find the parts that you need to check when your dryer is noisy.
The drum baffles:

The drum baffles are use to tumble the clothes inside of the drum, in other words, the baffles job is to separate the pieces of laundry as the drum turns.
When the dryer is getting older and if you use the dryer a lot, the drum baffles holding screws will become loose. Loose drum baffles will cause noises. All you need to do, is to open the top panel and tighten the drum baffles holding screws.
The drum support rollers:

These dryers uses four drum support rollers, tow on the front and two on the rear. The job of the drum support rollers is to keep the drum tumbling smooth.
When the grease on one of the rollers dry out, the roller start to make squeaking noises and the roller bearing will start to wear out until the bearing on the roller is gone. When the bearing on the roller is gone, the noise will change from squeaking to a clanking noise.
The blower wheel:

The blower wheel is use to circulate the air inside of the dryer drum. The most common Whirlpool blower noises are cause by something falling inside of the blower housing and hitting the blower when the motor runs.
The Idler pulley:

The Idler pulley is use to apply the necessary tension on the belt. There are two types of idler pulleys, the pulley with the wheel and the pulley with the teflon slide. A bad idler pulley could cause a Whirlpool dryer to be noisy.
The drive motor:

Worn out bearings on the motor will cause the motor to run kind of noisy. When the motor starts making noises, the solution to this problem is to replace the motor.
The belt:

The belt on most dryers is only about1/4 inch wide. These belts work very hard making the drum tumble. When the belt stretch just 1/2 inch more that it supposed to, the belt will start slipping and that could cause your Whirlpool dryer to be noisy.
As you could see, there are a lot of parts that could become noisy in your dryer. When your dryer starts making noises, make sure to check it out before it gets worse.

You may have something next to the drum inside the covering or the motor may be going bad.

drum has worn drum bearing dryer top AND rear panel must be removed to acess the rear of drum to replace drum