7MMGDC400DW1 Maytag Dryer - Instructions

1.Unplugged the connections to dryer door
2. Removed dryer door, front cabinet,popped off the drum belt (this is done by feel),unplugged the drum from cabinet, removed drum, all to get to the gas element inside at the bottom of dryer.
3. Unplugged the connection to the element, then removed unit to get to the burner parts.
4. Replaced the natural gas burner element with the LP gas element.
5. Re assembled dryer and tested.
*Note: Actually my son did the work while I read the very easy to follow directions. Since neither of us has disassembled a dryer before, the thought of taking a brand new dryer all apart was more daunting than the actual task.

I followed the advice posted by other customers. I took the front off the dryer, put the door back in place and ran a cycle. I could see that the igniter was heating properly, but no gas was flowing. Based on what I read I concluded that it was a problem with one of the gas valve coils. It was relatively inexpensive to replace both (and the dry is 10 years old), so I didn't go to the trouble of determining the bad one. I replaced them both. Obviously I unplugged the dryer (no need to turn off gas). There were 2 screws that held the bracket in place which holds the coils. I disconnected the coils, removed the bracket screws, replaced the coils, reattached the bracket screws and reconnected the coils. I then reattached the front plate to the dryer. It was very easy and took about 20 minutes and I had never worked on a dryer before.

First watched a youtube video on the process. Took off front cover. I'd already replaced a belt so I knew what to expect. Two screws holding the retaining plate on top of Coil Valves (both). One screw was a bit seized, so a bit of persuasion w/ the pliers was in order. There was no info on which way up, but luckily I noticed a bump on each valve, and two matching holes on the retaining plate. (Note to others trying this) Of course while re-assembling a dropped and temporarily lost a screw, then one of the machine screws that hold the front cover on, but other than my stupidity, and frustration that job was easy. The cycling thermostat I just got "just in case". I knew the main thermostat was working, but couldn't accurately check this one, so I got a spare and replaced it. I'm sure it was one of the valve coils as I'd read another user had an issue where the coil would work fine at first, but after it got hot would not work. After a cool down, it'd work fine again. So all in all, easy job.

Same as others.
1. Unplug dryer from power source
2. Use nut driver to remove two front screws at bottom of dryer
3. Disconnect cable connected to Secondary Coil (this is the coil towards the rear of the dryer)
4. Use angled phillips screw driver to loosen screws holding cap on top of the two coils. (Angled tool not required but seemed easiest to me)
5. Slide top cap back towards lock screw to allow coil to be lifted out
6. Remove and replace secondary coil
7. Replace cap, tighten screws to lock in place, reconnect cable to coil
8. Restore power to dryer, test and confirm gas flame stays lit
9. Replace lower front panel on unit

PartsSelect a great resource to use for home repairs like these. My first time using site and doing this type of work, now PartsSelect my first source to go to on such items.

Removed and replaced both the thermostat sensor and the ignitor. Tested thej dryer and it worked. Replaced the front panel and it was good to go.

First and Foremost i was told that my problem was with the Thermal Fuse (Fix Ya.com), Then with the little Electrical knowledge I have thought Fuses don't turn on and off,If the fuse was bad i would get No Heat. (Even for a second) Fuses just don't turn on and turn off intermittently,when they go there done! So after a little research i decided to order the gas coil valve. I tilted the top up, two screws on the front panel, took that off and the valves were exposed,(bottom left) two screws too remove bracket then installed new coils on bracket,put back together and I Have Heat Again! NO problems what so ever since new install. I would say having not been for cleaning lint build up inside the machine (been 6 years) the Whole project took me Ten Minutes.

I've nothing to add to the techniques already described in the other narratives except that the dryer operated normally at first, but then after around 10 minutes the flame no longer cycled. I suspected a bad high limit thermostat since the valves seemed to be working. I ordered the replacement coils only because they were listed as the most common thing to fail. After replacing the T-Stat there was no change; I started checking things w/ a multimeter and found that all the T-Stats were closed. I should have done that at first. Anyway, since I had the new coils I decided to put them in. The dryer has workd perfectly ever since. Lesson to be learned: the coils may check ok when cold, but become inoperable after heating up a bit.

Cleaned out years of fuzz behind lower access panel and noticed where the igniter sits there is a metal tube about 1 inch in diameter. It had rust on the end and was starting to flake away. Found some helpful hints about how to test the igniter. Very easy, just used an ohmeter. Unplugged the 2 pin wire connector and checked for continuity. 1 lead on 1 pin and the other on the other pin., igniter side not the harness side from the dryer. A good igniter should read less than 5 ohms. I don't know the spec. exacttly, but it should not read open or infinite resistance. My meter read an open circuit. Removed the tube and igniter assembly, mine only 2 small bolts. I found the igniter element cracked. Ordered and installed igniter and tube assembly. This was a very easy install. 20 year old dryer works great and it's better than spending $500.00+ on a new one.

Took back cover off. Cleaned out the lint that had built up inside the dryer. Replaced the lint trap housing and lint chute seals. Also replaced the drying vent hose. Works great now.

Removed 5 screws holding the back plate in place and removed the 5 different connections to the timer. I had a fair amount of difficulty "releasing" the old timer from its two clips that held the timer in place. I really needed a special pair of pliers that I could grip the pressure clips. Sad to say that in the process of releasing the bottom clip I broke of the clip. It turned out that I didn't need the lower clip to securely hold the new timer in place. There was substantial pressure against the timer given by the cable connections that the timer held in place. Replaced the back plate.

I removed the Drier Door and removed the Front Drier Panel exposing the Gas Valve & associated parts. I removed two (2) screws holding the Gas Valve Coils in place & replaced the 2 terminal coil, then replaced the screws, Front Cover & Drier Door. I liked the results so much, I ordered the other Gas Valve Coil and will replace it also when it arrives.

Good trouble shooting information.

After reading the many different common stories,I replaced both coils (m series).Very simply lifted up the top of driver,held by 2 snap springs and 2 lint vent screws.Removed front cover,2 screws and 2 bottom snaps,coils down on bottom left.r/r both coils,reinstalled covers and let there be heat!This website is a blessing!!

Replaced coils on gas valve.

After opening the bottom access panel, I found a lot of lint build up which is very flammable. I took my leaf blower and cleaned it all out. Then I just followed the instructions that came with the part. But be careful as the igniter is fragile. I broke the first one...

Watched youtube video to problem shoot. Cause determined to be coils bad. Searched web found Parts Select to be easiest site to deal with and had coils for best price. Followed instructions supplied with parts. Dryer works like new.