7MMGDC300DW1 Maytag Dryer - Instructions

Well, here's the rub...in order to find out what part I needed to order, I needed to take the dryer apart to where the gas controls are, and there on a sticker was a part number for an LP conversion kit. But, in order to get to that gas valve unit, I fumbled about figuring out how to take this brand new dryer apart, since there were absolutely no instructions whatsoever in the owners manual. And once apart, and pretty much all apart, I wondered how it would be that the Maytag repair man would be so lonely, as he'd have plenty to do.
However, the kit had great instructions as to how to take it apart and change out the orifices.

Getting to any of the parts in the Maytag dryer is easy. Tip the dryer back and slide a 4 x 4 block under the front edge. You remove the whole front panel after you remove two screws at the bottom corners of the front panel. You need to tip the dryer back to get a screwdriver on the screws. Swing the front panel up to release the top of the door panel from the top. Watch the short wires to the door switch. Unhook the door switch wires and move the front panel out of the way. The timer on the top is accessed by re-moving two screws along the top edge. There are four screws. Remove them all and tip the top of the front panel forward. You then see that two screws hold the panel and the other two screws just hold the trim.

The dryer started normal. The drum motor run when the start button was operated. The fluff cycle operated normal to indicate the timer motor was OK. On the dry cycles, the igniter heated up. The gas came on. The dryer run for some period of time and then the flame went off. The thought was that the low temp cycle thermostat sensed the dryer was hot and thus switched over to time the cycle to its end. However, the low temp cycle thermostat tested good with a meter when the sensor was removed from the dryer and heated with a light bulb. Burnt contacts in the sensor were a possible problem. I also though the radiant sensor may be bad and not recycling after it got hot. After time, the igniter would cycle on but the gas flame would not come on. I thought the radiant heater might not be tripping the secondary coil on the gas valve. The gas valve coils tested good. I was checking them cold after the dryer had cooled down. I ordered a number of parts.

I got lucky and did a test on the coils while the dryer was still hot. One of the coils in the dual booster holding coil was going open when hot. When cold it had enough continuity to let the gas valve cycle on once. After the coil got warm it went open and shut the gas valve off. When the coil did cool off, it again had continuity. I was about ready to trash the dryer when I finely found the problem. I am happy I persisted and worked the problem through to a solution. I purchased several extra sensors but saved money in the long-run. I rate this problem at the high end of complexity for the do-it your self home owner to solve. The problem was an easy fix once the real problem was found. Only 4 screws and 3 push on wire connectors (two were on the front panel for the door switch).

Replaced the thermastat first, then the cutoff switch, still the same, I then replaced the thermister, and still have the problem.

Followed instructions, except to advoid sharp edges, and completed the job in under an hour.

Both my husband and I are not good at DIY or fixing things. I watched the instruction video that was posted on the PartSelect web site. It seems easy to do it, however still very skeptical. My husband decided that there is nothing to lose in trying, so we ordered the parts. It is as easy and simple as the video instruction. We are very happy customers.

I disassembled the dryer once to clean the motor and compartment. After reasembly, the problem persistes. I ordered the motor and the second diasasssembly was accomplished in 10 minutes and the entire job took 45 minutes and the dryer was running like new. Tip- Leave the motor secured while removing the blower fan.

Just follow the instructions the one was provided with Maitanace kit we bought from you.

Removed the plastic guard. Snapped the catch in place and replaced the guard

Used the screwdriver pressed the blade against the edge of the door catch and popped it out. Put the new door catch in place and pressed it and it snapped into place. Done

Unplugged washer,removed the two screws by the lint trap,moved the top foward lifted the top (it'shinged in the back )the switch is right inside the door top right hand corner removed the two screws that hold the switch in place used a flatblade screwdriver to seperate the connections pulled off the old installed the new switch put every thing back together worked as though it wes never broken

removed front of dryer located igniter removed two screws disconnected wires then put new one in also replace thermal fuse and thermostat on back of dryer works great.

I suspected a faulty igniter and disconnected the cable to the igniter and measured the resistance of the igniter and found it to be 70 ohms then I checked the voltage at the same cable towards the power source and found it to be 25 volts ac which should be 120 volts ac. Next I checked the radiant flame sensor and found it to be open (it should be a closed circuit when cold). I removed the flame sensor (with the power off) using a small box wrench and found a broken lead. Replacing the flame sensor solved the problem.

Removed lower front cover of dryer, located coils, removed old coils by disconnecting the wires and removing the hold down bracket screws. Pulled the old coils out replaced them with the new coils by aligning the index pins on the coils with the holes in the bracket then reattached the bracket and plugged the wires into the new coils. Then closed the cover on the front of the dryer. Dryer now ignites and stays on to heat up and dry clothes.

Took off back panel. unscrew timer. unplug wire and replace new wires from new timer, one at a time to make sure plugged to right terminals. screw back on the new timer. replace back panel.

Took back cover off
Disconnected part
Put new one in
Reconnected wires
Put back cover on

To verify that this was the needed part, I used a digital multimeter to confirm there was no continuity.