SG7800 Maytag Washer Dryer Combo - Instructions

The repair itself was pretty easy. Though I had figured out what needed to be done on my own while I waited for the belt to arrive via Fed Ex, the belt arrived with instructions that described the plan I had already figured and if I hadn't known what I was doing, the instructions would have been a great help.

STEP ONE, UNPLUG THE UNIT (and/or shut off the gas supply), CAREFULLY. Then, I took the front of the unit off by removing the 2 screws on the front panel near the bottom of the unit and disconnected the wiring that shuts the unit off when the door is opened. Set the front door panel aside. Then I removed the front of the tumbler retainer along with the exhaust duct and lint screen assembly by removing 4 screws that affixed the reatiner frame to the rest of the outer cabinet. Set this aside as well. Remove the entire tumbler unit. Set aside. Remove 4 screws on the back of the unit that hold the tensioner and motor access panel and remove it. Set it aside. At this point, I vacuumed every bit of lint and debris from the snapped belt out of the enitre unit, lubricated/greased all moving parts, cleaned off the friction bearing surfaces, and collected loose change ($1.35).

When the belt arrived, I unwrapped it, and placed the smooth side to the tumbler and rubber banded the slack off to the bottom right side (sort of the 4:30 position as you put the tumbler back into the unit). I carefully jimmied the tumbler back into the unit BEING CAREFUL not to pinch the groved belt between the tumbler and any other parts inside the cabinet. I replaced the tumbler retainer and screwed the 4 bolts back into place. I spun the tumbler over near the tensioner assembly (so I could see the slack through the access panel hole in the back) and removed the rubber band. I threaded the belt through the tensioner and over the drive pulley and rotated the tumbler clockwise to align the drive train of the belt. I plugged the 2 wires back into the switch on the inside of the door panel and then I replaced it on the front of the unit and screwed the 2 screws back in at the bottom front of the panel. I plugged the unit back in and tested opperation. It worked great! I unplugged the unit again (I'm not finished yet). I then replaced the access panel on the back of the unit and screwed the 4 screws back in. I moved the unit back against the wall and plugged it back in. Done! The dryer is less noisey now and more efficient most likely b/c I cleaned all the lint out of the thing! Thanks for the prompt shipment of the belt!! I'll get a few more years out of this dryer before spending $700 on a new one!!! Thanks again!

The job went fast an well

Water was leaking at the injector nozzle during the fill cycle. I could not visually see any damage to the existing part, but, ordered replacement parts, anyway. The new parts arrived and looked EXACTLY like the old ones. Clearly, the new parts would leak, too. So, I cut a three-inch length of 3/4-inch OD pipe and spliced the two hoses together, completely eliminating the troublesome parts. The washer works fine and does not leak. And, it fills much faster, now. I still have no clue as to the purpose of the injector nozzle nor do I know why it did NOT leak for 30 years.

The motor was easy to replace: unplug the wiring harness, slip off the belts, release the tension springs from the motor carriage with needle-nose pliers, and then unbolt the motor carriage with socket set and remove from the washer. Remove the pulley from the old motor with allen wrench and transfer the carriage to the new motor. Reverse operation for everything and you are back in business. The hardest part was the far back screw holding the carriage, a wobble extension helped.

First I disconnected the power and turned off the water supply. Then removed the front panel of the washer by removing the two phillips head screws from the lower left and right front of the machine. I then removed the four hex screws at the corners of the top of the machine using a socket set. The two screws in the front of the top come out through the inside and the two screws in the back come out through the access holes in the top. Next I disconnected the bleach/softener tube from the upper end to allow the lid to be raised. Then I swung the right hand side of the lid up fully and rested it on the left hand side support using the braces provided on the lid and resting the weight on the attached support string. The injector valve, inector nozzle and injector bracket are right on top on the left hand side. The bracket is taken out by removing one hex screw on the underside of the bracket. The valve and nozzle are removed by loosening the hex screw on the hose clamp, To replace, first assemble the rubber sleeve and plastic injector. The large end of the plastic injector should fit squarely into the slot of the rubber sleeve. To insert this assembly back into the molded end of the injector hose I used a small amout of laundry detergent to lubricate the large end of the rubber sleeve. This allowed the part to slide in without displacing the rubber sleeve from the plastic injector nozzle. Now, I replaced the associated parts (lid and front panel) and turned the water on and plugged the washer back in. No more leak. Thanks to PartSelect.com my repair was easy. I did not need to replace the injector sleeve bracket but purchased the new one in case I broke the old one during the repair.

I used the trouble shooting part of this site and bought the radiant flame sensor and the high limit thermostat. Installation was very easy. The original problem still persisted and then purchased the temp. control thermostat, cycling thermostat and thermal fuse. These parts installed easily as well and the problem still existed.

While using the Multimeter to determine if the gas valve coils were getting voltage during the lighting process I moved the contacts on the two wire coil and noticed that the coil would activate sporadically. As it turned out the coil had a loose connection which would contact while cool and then lose contact when the coil warmed up.

This was a tricky issue to diagnose and am now waiting for a new coil to finish the repair.

I now have an almost complete set of spare parts for electrical issues and got them at a nice price. I will keep them in the event that I might need some of them in the future.

The repair would have been easy and very straight forward thanks to this website if the actual problem hadn't been the crazy heat related bad connection in the coil. Since the flame would light during startup the coils seemed to me to be good. Actually finding a weird issue is the sort of thing I find to be the fun part of repairing things.

Thanks Parts Select ! !

Gregg heagney

Removed front of dryer, unplugged each coil to determine where buzzing was coming from.....determined it was the boosting coil....ordered part and replaced. Dryer works great....we think it had be going bad over time because drying times have noticeable decreased.

I first ordered the coils from a different web site and they sent the wrong ones. The job would have been much eaiser if i had just returned and ordered from here. Instead i cut wires and tried the others but since they were worng, it did not work. I didn't label the wires so it was a puzzle to put it back together. Once i had the wires connected properly it was a simple fix. You just open the top and take the front pannel off, remove the drum and it is right there at the bottom. Two screws take the cover off of the coils and they slide off the gas valve. Slide the new ones on and replace the cover. Put the front pannel back on, close the top and its good to go. I first tried the highlimit thermostat, and termostat with no luck. The flame would light when it was cold, but once warmed up, the flame would ignite and immediatly go out. The coils did the trick.

I remove the front control panel and to get to the bottom front dryer door off. Using my volt meter i checked all the sensors and thermal. I surf the internet for hint and some one mention to replace the coil since some time you could have one goes out and the other working still. After i replaced the coil kit it works like a champ.

After verifying that the supply wasn't the problem, I ordered the replacement inlet valve module.

1) shut off water to machine
2) removed the hose connections from the valve
3) unplugged the washer
4) removed the plate holding the module - 1 screw
5) removed the hose clamp from the valve module to the washer inlet
6) removed the two screws holding the valve module to the plate
7) removed the 2 wire connections to each of the two solenoids.
8) Reversed all of the steps above for the new valve module.
9) checked for leaks

I took out the two screws in the bottom front panel of the washer, and rotated the front panel from the bottom away from the machine until the top or the panel was released from the machine frame. I then tilted the washer back to get access to the bottom of the machine. The pump pulley had split in half, and the bottom half fell off the drive motor shaft. The only problem I had was breaking free the set screw that holds the pulley to the drive motor shaft. I used a long arm Allen wrench and an adjustable "Cresent" wrench to apply enough force to break the set screw loose. Iclamped the upper transmission belts tightly to keep the motor shaft from turning while I loosened the set screw.

These Maytag people know how to build stuff. I was impressed with this valve. Built really smart. After a gazillion years (about 16 or so) the valve started making a funny groaning noise and the cold water flow was very slow. Took about 15-20 minutes to fill the tub.

the inlet valve is located on the back of the washer where the hoses are connected. In fact the hose connectors are part of the valve.

To replace this valve, start by unplugging and turning off the water spigots, unscrew the two hoses from the valve. (you need a towel here, but that'll be obvious soon enough.)

Unscrew the single screw at the top of the valve bracket (the bottom of the bracket is held in place without screws.) Remove the screw holding on the sheet metal and pull the bracket out as far as you can without stretching things. Write down what colors of wire are connected, then pull off the electrical connectors.

The valve outlet is a skinny (compared to the inlet hoses) rubber hose that has a clamp to hold it in place. The clamp needs to be loosened with a 3/16" nutdriver a plier would probably work, but may be hard to get in there. Now slide the clamp further up on the hose, dislodge the rubber hose off of the old valve. Now it's free.

Reverse the steps. Believe it or not, that is all. It works great and this washer probably has another 10 year left in it.

Clamp was already in multiple pieces so easy to get off.

Got clamp from partselect.com in 1 day which was great.

Removed two PH screws from front cover then pulled bottom of front cover outward and down to remove.

Caution for those doing this: take a piece of 220 or 240 grit paper and sand all the edges of the clamp. Trying to put it on without doing so will result in countless paper cuts in hands.

Before putting new clamp on be sure to use either some soap or silicon lube on the rubber V seal between upper and lover tub.

Also need to put some 1/4" to 3/8" spacers at three equally spaced places beneath the upper tub and the lower tub. If this isn't done the upper tub will drop down too far inside the lower tub and the inner lower tub, when it starts to spin, will rub on the underside of the upper tub = cause the main drive belt to smoke and tub to "freeze up"

Spacers I used were simply 3 pieces of multi strand sheathed electrical wire 3/8" so that I could bend them down at an angle and put them out once clamp was in place. Wire pieces need to be about 4-5" long.

Assemble one bolt in clamp and thread around tub in CCW direction.

Position one bolt of the clamp in right rear corner. this is important so that when tub goes out of balance, there's clearance for the clamp bolts and they don't contact the cabinet.

Make sure before threading clamp arount tub that the screw that will end up in the front left corner has a hex head on it so that you can apply some clamping "muscle" with a socket wrench.

I had trouble getting the front left screw inserted in the clamp (its only 2" long) so I used a 3" bolt to make the preliminary connection to pull the clamp semi tight. I planned ahead and got a light wire coat hanger to use as a "tie-tie" in the event that I had to remove the 3" slotted screw to revert back to the 2" hex head screw. Luckily when I removed the 3" screw I was able to quickly pop the 2" hex head back in and tighten completely.

Before putting front cover on, do one load with front cover off to make sure that upper and lower/inner tub don't rub each other.

If ok, turn power back off and put front cover back on.

Note: Would advised ordering the rubber V-seal if you are ordreing the clamp. If you buy the seal there are four bolts in the lid that let you lift the lid to work on the tub, clamp and seal MUCH more easily. Sticky part is getting water fill tube in top left rear disconnected so that new rubber v-seal can slide over tub.

Note also that in order to get to front left lid bolt that single bolt holding diaphram onto front left upright must be removed so as the let diaphram assembly drop away to access front left lid bolt. The two bolts in the rear can be accessed from the top very easily. Also need to disconnect the bleach fill tube in order to lift the lid (right side lifts up to vertical position)

I tested the dryer coils and found that they were getting a voltage but would not open the gas valve. Coils were not bad but weak. After they warmed up they would not open the gas valve. It took 10 min to repace both coils and the heat sensor.

Remove top two front cover screws. Disconnect wiring. Set aside front cover - door assembly.

Remove two screws at top of the vertical riser cover to expose entire dryer interior. Remove filter. Remove screws to blower cover plate. Remove 4 screws that fasten front drum guide assembly. Remove drum. remove and replace 2 drum support rollers . Replace one rusted drum roller shaft. Replace both drum rollers and non-metalic washers.

Drill out 4 rivets holding two front drum glides. Replace and rerivet new drum glides.

Pry back slighty the many retention points around the front drum assembly which hold the front drum felt seal. Refit the new front drum felt, pressing the retaining clips back in place with a screwdriver.

Replace tumbler motor belt.

Install Drum. Install front drum retention assembly. Install new blower seal with reassembly of blower cover.

Total time - about 1 hour