WGD6720RU0 Whirlpool Dryer - Instructions

I ordered the part(and a backup) and had it in two days. 5 days less than ordering from sears.

Lubricated pulley wheel which temporary reduced noise. This verified what was making noise. Looked up the part on partselect.com and ordered it. Recieved idler pulley with bracket in just a few days.
Quickly removed back panel using nut driver with drill. Slipped belt off pulley, removed one screw with plyers to released spring and removed old assembly.
Inserted new assembly, connected spring, slipped belt back on roller.
Tested before replacing back panel.
All was very quiet. Replaced back panel.
All done

Unplug unit turn off gas, remove only bottom front panel first tried radient flame sensor was not the problem it was the coils which were infront easy to acess with small screw driver remove two prong coil and replaced then the three pronged coil being sure to line them back before tigtening left off cover and watched for ignition once it turned on and ran replaced cover and done.

Took back panel off, and it was really easy putting the new idler pulley in.

I took off the back panel off the dryer. The idler pulley could be accessed on the bottom. It was a bit cramped but not too tough to replace.

Pulled the back panel off with nut driver , reached in removed belt from pulley , disconnected the spring , removed the the 1 bolt holding the bracket .
Put the new one in , in reverse order . Very simple , maybe 15 minutes total . While back is off , shop vac out any lint !!

Lowes gave a conversion kit for 29" wide dryer, not by model number. Could not find the right kit. Called PartSelect , in 2 minutes they had the right kit, by model number. Sent overnight mail, followed direction and boda bing it was done.

Unplug from electricity, turn off gas valve, raise top, remove front. Take drum out of cabinet, unhook gas line from burner assy. unhook electric wires, marking them for re installation. Remove, and replace burner tube. Reinstall burner assy attach wires and gas line. (Check for leaks) Reassemble drum to cabinet, rethread belt thru tensioner, reinstall front, let top back down on unit.

Followed your video for replacing the Tension Pulley, Drum Belt and Drum Rollers. Models were not exact, but instructions were very clear and detailed enough for a "computer geek" to do the repair myself (with some help from my wonderful wife). Live in Ohio, parts came from Kentucky and I had them the next day! The dryer is almost 10 years old. Running great now. Thank You!

I thought it had to be the igniter so I replaced that part. The dryer still did not start. I replaced the high limit and hoorah dryer works. Two weeks go by, the dryer is drying the clothes but my wife smells gas in the laundry room. I replaced the coil pak on the gas valve. My wife says she still smells gas. I replaced the radiant flame sensor and no gas smell for 2 weeks now.

Followed the instructions on your video.

After the Radiant Flame Sensor was installed, the problem remained. An appliance repair person then replaced both coils, and that fixed the problem.

Removed back panel to get to inside. Removed drum etc to replace drum rollers (ordered repair kit also), replaced the idler pulley etc, now like new. Repair successful!!!! Thank you!

Removed the lower front cover of the dryer. Removed the lint filter and removed the cover from the air duct by removing two 1/4" bolts. Removed the two 1/4" bolts retaining the thermistor. Installed the new thermistor and covers.

We followed the on-line video which was very helpful but it took longer for us. But the part didn't fix the problem, so we had to go back on line and research it some more only to find that the more common cure for our problem was the gas coils which were even easier to replace and that did fix the problem.