How to Troubleshoot & Replace Whirlpool AP6009126 / WP40111201 Dryer Drive Belt

With this model dryer, the pulley that is attached to the drive shaft of the motor was stripped. The pulley holds the dryer belt so that when the motor runs it turns the belt. The pulley is aluminum and the drive shaft is steel. Guess which one gave? The drive shaft stripped out the threads on the pulley that hold it in place on the drive shaft. As a result, the motor turns and the drive shift spins inside the pulley and the pulley doesn't move. Guess who doesn't sell just the pulley? You guessed it! THE MANUFACTURER You have to buy a new motor to get the pulley. Stupid. Fairly easy repair, I recommend taking a photo with your phone of what wires attach where so you put them back in the right place. Also take a photo or make a mental note of how the dryer belt winds around the pulleys. To attach the belt, just pull the arm with the spring on it all the way to the right and it will give you the most room to attach the belt. If you haven't changed your belt in a while, great time to do that too. BIGGEST ISSUE The fan that attaches to the motor is plastic and has to be removed and reattached to the new motor. It takes a 7/8 socket and the nut is plastic. Was hard to break it free and I could see it cracking if you aren't careful.. Took about 1 hour to repair 

My problem was my dryer would work for about 10 minutes after that the ignitor would glow but the flame wouldn't kick on until it cooled down a little bit maybe three or four cycles but then the flame would light up again replaced gas valve coil kit even though ohms test showed it was good found a video on youtube how to diagnose dryer problems and on there the guy says even though your coils test good when they heat up is when they can fail 

I took apart the front of the dryer, the lint trap, and removed the drum to access the pulley. I was amazed that all that had to come off to get to it, but it really isn't that hard. I decided to replace the belt at the same time as long as I had it apart. The new parts worked / fit perfectly and the problem is solved. Note: Non't take the idler pulley arm bolt loose, just remove the retainer clip and slide the old pulley and washers off the arm. Make sure to keep the washers because the new pulley doesn't come with new washers. 

With parts ordered and shipped by appliance parts pro 

Removed Front of Dryer, Took out Drum Changed Tension Pulley Assembly Installed new Roller Installed Drum with new Belt. Put Front Cover Back all completed in lest than 30 Minutes. 

1. I watched your videos (twice) to see disassembly steps and techniques 2. Disassemble dryer to diagnose troubles. 3. Found that the drum was hitting the top of the blower housing and that new felts and glide pad felts should fix it. 4. We accidently broke off the plastic air duct in handling, so I ordered one of these as well. 5. The parts arrived in 3-4 days. 6. We followed the instructions in the videos, which are well detailed and 7. The machine is now very quiet and operates perfectly! Thanks! 

Replaced drum support rollers, dryer belt, and dryer belt tension pulley. I set up an iPad in the washer and followed the awesome step by step videos supplied by APP. 

Took the throw the kitchen sink approach at it. Figured it was the rollers and glides so those went in and since I was removing the drum, let's do the belt and tensioner while we are in there. Do yourself a favor, vacuum everything out as well. Now it's nice, quiet, and smooth again like new. Got 16 years before the repair, hopefully I get another 10. Saved myself $$$ vs service call or a new unit that will probably break and be not repairable due to all the electronics they now include. 

Our Dryer is 18 years old and have had gas valves replaced once. Now it was squealing. I found Appliancepartspros.com on line and read about my described problems. I ordered all possible parts that may cause the problems and received them in just 3 days. I followed the easy videos they provided for each part and in 3 hours it was up and running. Easy fix, Anyone with a little know how and a few tools can do this. I replaced about 10 parts and rollers for a total cost of delivered parts of $86.00. My wife is very happy and so am I. Thanks Pete 

Dryer was making squealing noises like a slipping belt. I removed the drum and didn't find any obvious problems with the rollers or idler pulley. I oiled the bearings on the rollers and idler, but after I reassembled the dryer, the motor ran but drum did not turn. When I disassembled it I found the pulley had come completely off the motor and its threads were stripped. I found I could not buy the pulley alone and thought I might try repairing with JB Weld. That repair failed after about 10 seconds of running so I ordered the new motor/pulley. To replace the motor you remove the screws from the blower housing cover and the two screws holding the motor/blower to the floor of the dryer. Then you can disconnect the wiring harness and pull the assembly out to work on it. You have to remove the blower wheel using a 7/8 socket holding the motor shaft with pliers. Then take blower housing off the motor by removing 3 screws. Use a big flat screwdriver to remove the clips that hold down the motor. I struggled a little bit with this. Put the motor assembly onto the floor or solid surface, hook the screwdriver into the slot on the clip and push down and out. If one side of the clip doesn't want to come off, put the screwdriver on the other side and try that. Reassembly of the new motor is probably easier than removal. Put one side of the clip on, then put the screwdriver on the other side and rap it with the heel of your hand. It should snap back on pretty easily.