MDG7400AWW Maytag Dryer - Instructions

Sensor is in the front lower left. Gas off, electicity off. Removed two screws for the filter, pry/lifted the top up and taped it too the overhead cabinet, removed two screws inside top of front panel, lifted pandel with door closed staight off. Two screws to remove the flame sensor braket. unplug the old sensor install the new one and reverse everything. With others suggestions I purchased temperature switches etc. but the radiant flame sensor was the problem. I now have some spare switches for future. Excellent company and very quick service. Oh, Sears wanted 200.00 just for the service call, I live rural.

Shut off or unplugged dryer for safety.

Slipped thin blade putty knife up under bezel of switch to unlatch from the panel and pulled forward to remove the swwitch from the dryer. Unplugged the quick connect terminals (3) from the old switch and plugged them onto the new switch. one of the terminals had gotten quite hot and darkened the insulation so it was replaced with one that was supplied with the switch. that was a cut, strip, crimp process. Placed the new switch into the panel and snapped into place.

Thank you very much for your prompt service. This was so cool... On Monday night my wife told me the dryer was not heating. I did a basic diagnosis, checked the internet for parts and lowest price and found your site. I ordered the part I thought I may need and 2 days later the part arrived and the dryer is working again.

Way to go, PartSelect!

removed the timer knob from the panel(pop off the grey knob cover and the knob comes right off) remove three torx screws from the top of control panel and tilt the panel forward.Slide the timer assembly to the right(there is a lock tab you have to push down) and unplug the timer.Reverse procedure and reassemble.That was it.

Ohmed coils and both had continuity so I changed radiant heat sensor. No bench test for Radiant Heat sensor. Same problem. Changed both coils and dryer works fine. Weak coils were my problem. I read thru the same issues in Parts Select forum and it said Radiant Heat sensor was problem 25% of the time. With coils having continuity and no ohm value specified for coils I made wrong choice but, I have spare parts and look for another 10 years of life in the dryer. Nice to have this forum to research appliance repair. Very helpful for parts location and installation. Dishwasher is next!

loosened two screws on back of top,lifted top away from front panel.it just lifts off front corners,removed two screws at top corners.lift front panel up and out,this panel supports dryer tub,remove slowly,unplug door switch parts are located left side bottom two screws holding in had to have wife hold drum up to put front panel on

Press in the new female latch part with thumbs. Took about two seconds!

0. Disconnected the dryer power supply
1. Removed the control panel (3 screws, star bit)
2. Detached the electric power supply cords from the timer assembly (took a bit of easing back and forth - do not pull by the electric cords, pull the socket itself)
3. Timer assembly eased off subsequently (held in place by three unscrewed receptacles)
4. Installed the new timer assembly, plugged back the supply cords, and installed the new timer knob, skirt and chrome cap.

They don't build Maytag equipment as they used to. We bought a fridge, washer and dryer 6 years ago - all three of them have had component, part stress and/or electronic sensor failures :-(

A year or so ago I replaced one drum wheel. The dryer worked fine for months until it started sqeaking again. When I removed the wheels again the shaft was no longer round but half moon shaped. this allowed the drum to drop lower than it's supposed to. consequently the drum ate through the back drum support. I replaced the back drum support and the roller shafts, in addition to two new rollers. It works great now. The more difficult part of the repair was replacing the rear drum support. It is screwed in from the back and requires two people. Everything else I did by myself. The lesson: If you replace the rollers, be sure the roller shafts are not worn. An asymetric shaft eventually causes more parts to wear out.

Removed the door and machine front.replaced old duct assembly with new ,and reassembled front.

I used a flat screw driver to pop out the old female portion and snapped in the new one. Dryer stays shut. That's it!

By following the directions included with the kit it was fairly clear. The diagrams of the control valve was helpful. It would have helped to tell which screws to remove to access the valve and where the screw was that retained the burner assembly.

Tools required: Stubby socket wrench, 5/16" socket, 1/2" socket, 1/4" socket, #3 Phillips screwdriver, external circlip pliers, straight slip joint pliers. A decently strong electric screwdriver is highly recommended - Milwaukee 2401-20 M12 cordless 1/4" Hex Screwdriver, for example.

Unplug the dryer. Turn off the gas supply.

Remove the screws holding the door hinges to the dryer.

Remove the door and hinges from the dryer by pulling the door and hinges up, then out.

Remove the two plastic thingies (door stops), opposite of where the hinges were, from the front panel of the dryer. Each plastic piece is held in place by two screws.

Grasp the front panel by its top edge, pull it toward you, then lift the panel up and off the clips at the bottom.

There are a couple metal brackets holding the top of the dryer down to the front shroud (the doorway) and frame, one on either side. Each bracket is held in place by two screws. Remove the screws, remove the brackets, then rock the top panel up and back, like the hood of a car.

Remove the screws holding the shroud to the frame. Look carefully. There are two screws that look like they hold the shroud to the frame, but actually do not. Don't remove these screws yet.

Remove the screws holding the plastic duct / lint screen slot to the shroud. These are very long.

Disconnect the wires from the door switch.

Remove the shroud.

Remember the two screws I referenced previously, stating they shouldn't yet be removed? Now's the time to remove them. Do so, then set the panel aside, being careful not to damage any wires. Don't lose the rubber gasket sitting around the circular portion of the duct.

There's a metal cover over the blower wheel. This cover is held in place by a bunch of screws. Remove them all, then remove the cover.

Remove the circlip going around the blower shaft, in front of the blower wheel.

Remove the clamp from around the blower wheel and shaft.

Pull the blower wheel off the shaft.

Install the new blower wheel.

Reinstall the clamp around the blower wheel and shaft.

Reinstall the circlip.

Reinstall the metal blower cover.

Make sure the rear of the drum is resting on the wheels.

Now things become a little difficult, because you have to fight the drum a little bit. Put the panel containing the moisture sensor, front drum seal, and duct into position. (Be careful not to mess up the drum glides. Make sure the rubber seal at the bottom of the vent is in place, sealing the vent to the blower.) Screw the panel into place with two screws, but don't fully tighten yet.

There's a felt seal that is supposed to go between the rear lip of the drum and the rear inside wall. The seal is supposed to be held folded, pinched between the lip and the wall, with the edge of the seal being outside the drum. The seal isn't supposed to jut into the inside of the drum. Use your fingers and some other tool to push the rear felt drum seal out of the inside of the drum. If you use a screwdriver, be careful that you don't cut, rip, or otherwise damage the felt seal.

Do the same with the front felt drum seal.

Carefully inspect the felt seals. You don't want any portion of the seal somehow working its way back into the inside of the drum. Then verify again that the rubber seal that goes between the blower housing and the vent is in place and properly sealing. Now tighten the screws.

Connect the wires to the door switch on the shroud, then loosely screw the shroud in place. Screw the shroud to the vent. Once all the screws are in place, tighten all the screws.

Lower the top of the dryer into position.

Hook a bracket into one side of the lid, position the bracket over the front shroud, then screw in place.

Repeat with the other bracket.

Place the front panel onto the bottom clips. Seat the panel onto the clips all the way, then rock the panel forward into place.

Install the plastic door stops.

Insert the door hinges into their slots, push the door down to seat into place, then install the screws that hold the hinges in place.

Plug the dryer in, turn on the gas, test.

I watched the video

If you are cursed with owning a Maytag product then you'll be glad PartSelet.com is in business. I get all my parts here.

My dryer motor burnt a phase. The tear down was very straight forward since there isn't much to a dryer. I did the tear down in the driveway. The dryer was full of lint so I blasted it with compressed air to clean it up. Keep all your parts in labeled baggies as you do the tear down. Reassembly goes much faster. The hardest part about changing the motor was getting the motor clips off. They are tough buggers. I used slip-joint pliers & finally popped them off. This job is simply enough for the average monkey. Just use the diagrams on partselect.com if you forget where something goes.

I shipped everything via fedex 2-day. It took 5 days to get here. partselect shipped it fast. fedex was the problem. I guess the boys at fedex have a public education is they think 5=2.