DDC4500SBM Whirlpool Dryer

PartSelect showed seven different possibilities why the dryer wouldn't heat. I removed the two screws to remove the bottom panel and turned the dryer on and noticed that the heating element that ignites the gas was working fine. This meant that it was not getting gas so it could be the gas valve or one of the two gas valve coils which are ... Read more located on top of the gas valve. I borrowed my neighbor"s ohm meter and touched the two probes on the coils terminals to check for continuity and found that one of the coils read zero. I then took both of the coils out by removing two screws and tested each coil again. One coil read 500-850 and the other read zero. This meant that it was no good so I called for the part and received it in three days. I reassembled the parts and turned the dryer on and it fired up after a few seconds. It works as good as new. The part plus shipping was less than $30. My repairman would have charged me $150-$200. While the dryer was apart I gave it a good cleaning with a vacuum and a toothbrush in delicate areas. I also removed and cleaned the lint trap housing by removing two nuts. I didn't know much about gas dryers, but thanks to PartSelect I easily fixed it myself.

There was no problem with lint build-up within the dryer & the exhaust vent. I removed the gas cycling thermostat & thermal fuse from system & dryer still was not operating correctly. The radiant sensor & hi-limit thermostat both seemed to be operating correctly. That left either of the two coils as the culprits. I replaced both coils ... Read more & the problem was corrected.

first I took the dryer apart 1st thing i did was unplug the power supply (safety first) then I removed the top of the unit then removed the front cleaned all the lint from the inside of the cabinet I found the proper belt size on part select.com the next day I had my dryer belt delivered (which cost 1/3 the price of the local repair shop ... Read more price)
then I placed the belt over the dryer drum and made sure it was in the general location it should be I then replaced the front cover and the top. then I removed the rear cover which was held on by six 5/16 sheet metal screws which gave me access to the drive pulley and belt tensioner the belt goes on by going under the tensioner then around the drive pulley
Then i rotated the drum by hand to make sure everything had clearance I then buttend everything up plugged it and started it up it workd fine and I figure Ill get another 8 years out of it
Thank you partselect.com