DG21CA Maytag Dryer - Instructions

From the noise level and info on this site, I assumed I needed to replace the drum rollers. I ordered two, along with the Roller Shaft, and a replacement belt (I assumed that would eventually need to be replaced so why not now).
No need for me to repeat the excellent reviews/instructions already on this site. Basically, it was an easy job that took about 2 hours, mostly because I took the time to clean every nook and cranny I could find.
Once I assembled it back up, the shriek was gone but the rumble noise was still there. I now realize that the blower wheel must have a worn out d-hole that mates with the motor shaft. So, I will have to order that part, get it installed and I am confident that I will have a "new" machine once that is in place.

The repair video is terrific and many others here have thoroughly described the steps involved to replace the drive motor.

The biggest hurdle for me was that the motor came with a new switch that required a different wiring configuration. No wiring diagram was included. Several others had posted questions about wiring in the Q&A and unfortunately PartSelect kept copy/pasting the same confusing and incomplete answer over and over:

"The Yellow goes to T6, Red to T5 Black to T2, blue to T1 and the white you will remove the blue jumper lead between the switch terminal 4 and 1/4" protector tab, connect the grey harness lead to the 1/4" protector tab."

Reading that doesn't tell me what to do with the white wire, doesn't address that my blue and white wires were crimped into the same connector from the factory, doesn't address that I had 2 black wires crimped into the same connector from the factory, and doesn't address a factory ground wire that connected the frame of the OEM motor to the bracket that the motor sits in.

With all the other excellent info supplied by PartSelect, this was surprising and frustrating. The sales dept ignored an emailed question from me, and the Q&A section didn't allow me to post a question.

Searching the internet, I found a wiring diagram on aceappliancesd dot com that addressed my dryer's OEM wiring configuration. Here's what I ended up with:

TI - Blue and white, crimped together into a single connector
T2 - Black & black, crimped together into a single connector (the wiring diagram I found said this should be black & brown, but they both look black to me)
T5 - Red
T6 - Yellow
1/4" Thermal protector tab - Grey (from the harness)

The new motor switch had a grounding tab with nothing connected to it. I removed the screw holding that tab into the switch and connected the (also grey) OEM short ground wire from the motor frame to the mounting bracket.

I had to cut 2 of the pieces of tape holding the OEM wiring harness together in order to get enough slack for all the connections to reach. If you do this too, make sure all the wires are still clear of the moving parts and the hot bits. You may need to retape the wires together at a different location to keep things tidy.

I also laid the belt over the drum and put 2 pieces of tape over it to hold it in place while I got the drum positioned, then I reached through the back access panel to loop the belt around the motor pulley and idler. Once that's done, just reach over the top of the drum and peel the tape off. I found that much easier than trying to loop the belt by reaching through and past the drum.

Installation of drum support kit was difficult because my snap ring pliers would not fit in the snap ring holes. Had to use pliers and screw driver to get them off and to put them back on. That took much patience and time. Installation of front guides was a bit difficult because the rivets were loose and turned when trying to drill them out. Also they were bigger and I needed a larger drill bit than the 1/8 told about in the video. Used drill, screw driver and pliers to get the rivets out. Also took more time and patience to do this. Belt did not need replacement but felt it a good idea to do it as long as I was in there. Belt installation was easy because my dryer has a rear view opening and I could use it to thread the belt. Tried it from the front as shown in the video just to see if I could and found it impossible. Could not even get my hands to hold the belt. Also vacuumed out 20 years of lint and dust that was inside the dryer. The videos were excellent in showing what to do and how to do it. Not sure how well I would have done without them.

Disassembled per instructions. Additional time used to clean inside unit.. Its much easier to install belt on motor pulley and tension pulley ( Roller) from rear access panel. Also ensures proper belt alignment on all items.

first i removed the screws holding back cover. Then I remeved nut from tumbler roller shaft. Then I slid shaft from roller .I removed roller then replaced with new one. Installed new shaft then replaced back cover. recieved parts from parts direct very promptly & they were the right parts the first time thanks very much

Just unscrew the front of the dryer the Igniter kit is on the right side of dryer unscrew one bolt then replace with new Igniter kit very easy fix make sure to unplug dryer first that way you don't get a shock by touching exposed wires before putting front panel back on clean out any lint that may be in or around bottom of dryer.

My Maytag gas dryer model MDG7600AWW is about 12 years old. Everything else works fine except it takes 4-5 drying cycles instead of 1 to completely dry my clothes properly. The flat igniter was simply cracked but not broken so it only worked some times. My gas dryer igniter and the 2 ignition coils work hand in hand so I replaced all 3 parts. The ignition coils provide a solid and consistent power supply to the igniter for proper burner tube function. Disconnect power cord from wall outlet. Shut off gas supply by turning the wall gas valve off. Remove 2 small philips screws to detach front panel door from dryer frame. Remove 2 additional philips screws on left front side panel inner door frame. Gently pull front dryer panel off beginning at top and put it aside. Igniter and the 2 ignition coils are plainly visible and easily accessible at bottom right corner of dryer. Igniter is attached to the burner tube and facing into the heater housing assembly. The 2 ignition coils are attached just above the gas valve on the rear of the burner tube. The ignition coils are simply attached to the rear of the heater tube with one bracket using 2 small philips screws. First, disconnect igniter plug wire harness. Next, I recommend using a small open end applicable size wrench (5/16 perhaps) to remove attaching igniter screw. A small 1/4 ratchet with applicable socket size may also be used. Handle the igniter only from the white ceramic part when installing. You don't have to completely remove the igniter screw from the burner tube. The igniter has a white ceramic horse shoe shape slot in which the attaching screw goes through for tightening to the burner tube. Just unscrew generously for removal and replacement of the igniter. Do NOT over tighten igniter screw as the white ceramic plate may break from over torqing. Reconnect igniter wire plug harness. The igniter part I used was PartSelect Number PS373025. Next, remove the ignition coil bracket by unscrewing the 2 small philips screws from rear of the heater tube frame. Remove only 1 ignition coil at a time by removing the wire plug harness and simply lifting upward. One coil will have 2 prongs while the other has 3 prongs so you can't go wrong when reconnecting the wire plug harnesses. I used the PartSelect 'M' Series New Style Coil Kit (2 coils included)which was PartSelect Number PS334310. Replace the front dryer panel back. Attach the front door to the panel and dryer frame using the 2 philips screws. Attach the 2 left side inner door front panel philips screws to dryer frame. Turn on the wall gas valve. Reconnect power cord to wall outlet.

I had replaced belt, but the noise continued. Ordered new rollers and washer. Removed the front panel by tipping the dryer back against the wall and removing two screws at the bottom of the panel. Tipping the dryer makes it easy to remove the front panel. Removed the front drum support by removing four (4) screws. I was then able to just move the drum enough to have access to the rollers. Didn't even have to remove the belt. Replaced the rollers. Needed special pliers to remove and replace the retaining rings. Put the drum back into position and mounted the front drum support. Tightened four screws and then put the front panel back on. Plugged it in and tested it. Problem solved. Took about 35 minutes. Thanks

Per instructions I printed off online: took off door, then the front panel. Pulled out the old switch/button, connected the new switch/button, made sure the new button was working; put the panel back on then the door and DONE!

Upon receipt of part, just loosened 1 fastener, slid igniter forward and out....unclipped wire connection and replaced... Could not have been easier. Be careful not to overtighten fastener when replacing. Description and pictures made for very easy selection.

The directions provided to modify the gas valve were very clear. Getting to the gas valve I was on my own. Taking the top and the face off the dryer, once I figured out that there was no reaching the gas valve from any of the access ports on the back, was the only way to access to the gas valve. If you have worked on any other dryers, this modification was definitely doable.

Replaced both rollers,shafts, bearings and snap rings.

Graet

Followed instruction video

Turn off circuit breaker or unplug. Remove two screws 4 inches from bottom front panel of cabinet with stubby phillips head. Pull panel towards you about 30 degrees; then wiggle it down, to free two steel spring clips holding it to cabinet. Pull off red and yellow wire from door switch. Now set front panel aside. Blower assembly is facing you at lower left. Open the housing by removing six small screws from cover and one attached to dryer base. Remove spring clip from end of shaft. (A circlip pliers helps to prevent it from springing off somewhere.). Squeeze spring retainer surrounding blower wheel shaft with regular pliers, and wiggle the blower off. Replace in reverse order. Be sure insulation around blower wheel housing seats properly into front panel. This keeps the hot air flowing up past the lint trap.
Easy job, about half hour. Mine took longer, because I had removed the belt and drum, thinking the noise came from bad drum support rollers. It was just the plastic blower wheel shaft seat, which had worn itself round. Cost $20 (including shipping) and my 29-year old Maytag is as good as new--at least for now.