DDC4500T0WH Dryer - Instructions

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 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 & 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 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

Timer wasn't working on the regular cycle so I replace it with a new one from partselect. It still wasn't working so I ordered and replace the cycling thermostat, the thermal fuse I also cleaned the vent and dryer it still didn't work so I read the diagram for the electrical and found that a coil for the gas valve is line with timer. I ordered the coils for the valves, replaced both valves and tested the dryer and it work just like when I first bought the appliance.

Dear PartSelect.com,

My repair went off without a hitch.

2 screws removed to remove top.
4 screws removed from inside to remove front panel w/ door.
4 screws removed from top of control panel, loosed and popped top right off.
Flathead screwdriver to pop off old plastic panel.
Removed old wire chase (plastic, approx 3” long).
Removed built-up lint, wiped down area for new duct.
Snapped new duct on.
Dryer works like new!!
Took about 35 minutes, most of time spent cleaning up inside of dryer from lint due to broken duct.

One problem was that salesperson sold me on a new felt strip to go with new duct. That felt comes already installed on the new duct so I did not need it. Cost me a few extra dollars I did not need to spend.

Other than that, easy ordering, fast shipment, and parts are as close to original as possible.

Thanks for all your help!

Determining the problem was the hardest part. With multiple parts (coils,thermostats...)possibly causing similar symptoms, I narrowed it down to the two coil valves.
Un plug the dryer. Remove two screws at the base of the front panel. Turn the front panel 180 degrees to avoid disconnecting the door switch. Gas valve with coils on top are on the right in front. Remove two screws in bracket holding coils, disconnect the wires, replace with new coils and reconnect wires. One coil has 2 terminals the other has 3 no chance of crossing the wires. I used an offset/right angle screw driver for one of the bracket screws due to close proximity to the drum. A stubby phillips head will work. You can check the burner operation with the front panel off as long as the door switch is still attached. Swing the front panel around and lift back into place securing with the two screws. Dryer works fine now.

First I found and watched three videos on how to open the dryer and replace the igniter.
Then I opened the dryer, but I did not remove the belt as suggested in the video, and then I removed the ignitor and flame detecter as the videos had shown.
I got on-line and ordered the new parts from PartsSelect in the afternoon and had them in my hands the next morning by 9:30 am.
I installed the new parts and everything worked fine again. You must be very careful with the igniter to not touch it with hands or anything else. I practiced puting in the old parts first.

First I really had to hunt for the proper way to get my dryer drum accessible for the repair. With my model it was as simple as removing two screws to take off the top panel (located by opening the dryer door), and then removing two other screws inside the front panel at the top. The front will then be able to swing to the left side (the door switch wires are on this side for this model). Simply remove the drum bearing by gently pulling it off. My slides were in such poor shape for less than 4 years old!! One of them had completely disintegrated! These slides have a small whole on one end which attaches to a small nub at the edge of a slot while the other side just slid into a slot at the other end. No need to even take out the drum!!
The hardest part of the job was to get into the dryer!

I pried out the remaining pieces of the handle out of the door with a screwdriver. When the new part arrived, I snapped it into place and it was done. It fit perfectly.

I removed the two screws holding the front panel to expose the lower works and verified the heating cycle failure. After a check of the vent system, checking the sensors for continuity and coils for resistance, I retired to the 'net for support. Accepting the general consensus that the most frequent, common and likely failure to be the coils, I rechecked them with the meter and found the two pronged coil to have significantly more resistance than the three prong coil. That was enough evidence to point to the coils. While I waited for the part to arrive, I replace the vent ducting. When the parts arrived I removed the two Phillips screws holding the coils, removed the old ones, installed the new ones, replaced the bracket, put the front cover back on and in less then ten minutes clothes where drying.

The end repair was very simple and took minimal effort. The time and difficulty was all in the testing. I disassembled the dryer and removed the drum and then hard wired each thermo-fuse to determine where the fault was. After test all of those I was stumped. When I opened the door the light would not come on so I assumed it was a power fault closer to the source. However after all of my testing I couldn't find anything wrong. I then removed the light bulb and realized it was burned out which led me to the door switch being the fault. I removed the switch and soldered the three wire together and the dryer started right up! All I had to do was order a new $15 part, unsolder the wires and plug them in. Would have been so much simpler if that light bulb hadn't of been burned out causing me to over think my diagnosis. This was my first major appliance repair and I did it with only the help of the parts diagram provided on the website.

1 Unplug power.
2. Remove the front of the unit by removing the two screws at the bottom of the front panel. Front dryer panel will swing out from the bottom and then the clips will release the top of the panel, careful not to disconnect the dryer door switch. ( can be unplugged to remove the front panel out of the way.)
3. Looking inside the unit on the right side you will see the gas value. On top of the gas unit you will see two small coils the coil closest to the burner has two leads on it. Remove the two screws to get to the coils, remove the medal plate, remove the connector then lift off the secondary coil. Replace and test. You can test unit with the front panel off. (be careful). If no heat, check that the Flat Style igniter is glowing. (ohm out both coils) before ordering parts. Intermittent heat problems. I replaced the secondary coil, it did ohm out o:k but it had swollen and was very tight on the shaft.

pulled out door striker anddoor latch out with pliers and just pushed in new parts. works like new in under a min.

I changed out the cycling thermostat and the high limit thermostat. Mainly because that was what my research indicated was the problem. I then found some more information online that indicated the gas solenoid valves were bad. I ordered them from you and replaced them. The problem was fixed.

In order to replace the valves you need to remove the top panel. Two screws at the top of the front door assembly hold it on. Remove the screws, lift up on the front panel door assembly and move it to the side. The drum will rest in place. In the lower left corner, under the drum, you will see the solenoids. Two screws attach a plate that holds down the solenoids. Take the hold down plate off, disconnect the control wires attached to the solenoids and lift out the solenoid/control valves. To assemble everything, work backwards to the start. Good Luck

Removed 4 screws from top of control panel , remove 2 from back to lossen top of dryer. Removed rear lower access cover,6 screws on back of dryer exposing pulley and tensioner, remove broken belt and vaccuumed out a ton of lint , removed pulley and tensioner and replaced. From the front remove 4 screws and take off front of dryer, disconnecting several wires, again vaccumed out lint, lifter drum evough to replace belt. Reassembled