Thread Number: 90821  /  Tag: Vintage Dishwashers
WP Dishwasher questions
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Post# 1153279   7/4/2022 at 06:28 (633 days old) by akronman (Akron/Cleveland Ohio)        

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My godson might buy a house with this dishwasher, unknown condition. When is it from? If in good working order or repairable, does it wash well? I have a spare KDS21 in perfect condition I could swap to him if this one needs much work. This WP says CONVERTIBLE-PORTABLE and is weirdly added in to a 1947 kitchen closet.

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Post# 1153280 , Reply# 1   7/4/2022 at 07:30 (633 days old) by Awooff (Peoria, Illinois)        
Wp

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I had that same model in my first house. Washed great especially on heavy wash but does use about 13 gals of water. Door switch went out on mine.



Post# 1153290 , Reply# 2   7/4/2022 at 09:54 (633 days old) by Tomturbomatic (Beltsville, MD)        

Great washing machine. Keep it unless you have water problems like a shallow well. You can still get very good results skipping the first wash, just put the detergent in the first fill as well as the main wash.

Post# 1153293 , Reply# 3   7/4/2022 at 10:47 (633 days old) by whitetub (Montreal, Canada)        

I would say it was made in the mid-1970's.

Post# 1153302 , Reply# 4   7/4/2022 at 11:47 (633 days old) by DADoES (TX, U.S. of A.)        

dadoes's profile picture
 
The model/serial tag is probably affixed to the edge of the tub.  Model is coded for year of market introduction.  Serial is coded for year and week of factory production.


Post# 1153309 , Reply# 5   7/4/2022 at 12:40 (633 days old) by qsd-dan (West)        

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May want to run a couple of loads of bleach through it first if that's mold at the bottom of the tank.

Post# 1153336 , Reply# 6   7/4/2022 at 15:58 (633 days old) by appnut (TX)        

appnut's profile picture
Takes Chromes off a trailer hitch!!! Looks like an adjustable upper rack. Early to mid 1970s I'd say.

Post# 1153343 , Reply# 7   7/4/2022 at 17:36 (633 days old) by GELaundry4ever (Nacogdoches, TX, USA)        
motor sound

The motor sound on these older units sound completely unmistakeable to me, especially when the pump is running while filling.

Post# 1153364 , Reply# 8   7/4/2022 at 19:45 (633 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
1978-80 WP DW

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Very good DW, will out-clean the KD-21 DWs for sure.

 

Looks to be lightly used and in good shape [ that's just dirt in the bottom not mold ] if you run bleach in it don't use more than 1/4 cup to avoid damage to rubber parts.

 

You can even up grade this DW to a Power-Clean pump from a later machine.

 

John L.


Post# 1162106 , Reply# 9   10/20/2022 at 16:59 (525 days old) by akronman (Akron/Cleveland Ohio)        
Now at my house

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My godson bought the house, the dishwasher doesn;t run but the washer, dryer, HVAC, stove and everything else does! So, the dishwasher is at my house for repairs, it's portable model SDF7800, and the underside looks remarkable! Except the motor, looks like it's been leaked on and seized. His entire Frigidaire kitchen looks like 1974 or so, the range has a 3 prong outlet right above the rear right burner, I think that bad idea was stopped in the mid-70's.
John, the parts diagram says motor 301861-Emerson, or 301858 GE motor, I can get a used Emerson at a reasonable price. But you mention upgrading to a Power-Clean? What should I be looking for?
Various pics, no rush on repairs since there's only 2 folks at his house and they've been washing by hand in their old place and here.
Underside looks excellent, this machine got some use but knowing the previous single 80 year old owner of the house, I bet it gave him trouble in the 80's and he pushed it in a corner of the kitchen and it hans't been touched since. Solenoids work for fill, then the motor does nothing at all.
And the impeller screw looks to have a folded over tab covering it, is that right or is it damage?
And the very 1st pic at the start of this thread---it turns out this is a prtable, they just kinda sawed off parts of the kitchen closet door jamb and stored it there! 1947 home remodeled in the 70's, what the heck!
Also, I am dis-assembling from top down inside the tub, correct? I will loosen the motor from underneath later?


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Post# 1162107 , Reply# 10   10/20/2022 at 17:03 (525 days old) by akronman (Akron/Cleveland Ohio)        
Parts and diagrams

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This is Whirlpool dishwasher SDF7800W1, W means white. IT has a reversing motor for pump up into the wash versus pump down to drain, as opposed to various machines using single direction motors with solenoids to choose wash versus drain.
Attached are parts list.


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Post# 1162120 , Reply# 11   10/20/2022 at 18:23 (525 days old) by akronman (Akron/Cleveland Ohio)        
More Fun

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sticker on top

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Post# 1162123 , Reply# 12   10/20/2022 at 19:27 (525 days old) by mickeyd (Hamburg NY)        

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I have this originally portable Whirlpool, too--thanks to Big Al, King of Dishwashers-- also transformed into a built-in with a handmade butcher block top. Tis a true beast, used mostly in the Winter months, because of its monster heater which adds fragrant warmth to the kitchen nicely. Got a real kick out of Uncle Bob's comment not to mention his telepathy, since today I bought my first Wegman's "Golden Pan" entree, a stuffed pork tenderloin, and indeed the Whirlpool ate the gold right off the pan. All the superlatives about Whirlpool custom Imperial are true.

One moment, please, for the pix.


Post# 1162124 , Reply# 13   10/20/2022 at 19:33 (525 days old) by Mickeyd (Hamburg NY)        

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Pix

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Post# 1162127 , Reply# 14   10/20/2022 at 20:22 (525 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
Late 70s whirlpool dishwashers

combo52's profile picture
Hi Mark,

It’s better to just replace the entire pump and motor assembly good used ones are still readily available I may even have one if you need help procuring one.

From underneath you merely takeoff the drain hose unscrew the nylon check valve that the hose was clamped onto swivel the four little tabs in word unplug the wiring and push the motor and pump assembly completely out of the dishwasher. You lift it out from the inside that is.

The early power clean assemblies will fit right in there as well.

John, call me if you have questions Mark


Post# 1162131 , Reply# 15   10/20/2022 at 20:54 (525 days old) by Tomturbomatic (Beltsville, MD)        
Beware the Power Clean Module

You will run into the same problems that John ran into if you replace the pump with a power clean module. The power clean module does not pump out as fast as the original pump so there is water left behind after every drain. Power clean machines have a timer with longer drain periods. John must not remember that he had to turn down the fill valve on his modified machine. How your son will manage that with a portable, I don't know.

Post# 1162137 , Reply# 16   10/20/2022 at 22:22 (525 days old) by MattL (Flushing, MI)        

I've got a similar unit in my basement I use for odds and ends. It will take paint off things. It's also very loud. Would not be my first choice for a daily driver due to the high water usage but does do a good job.


Post# 1162699 , Reply# 17   10/27/2022 at 16:43 (518 days old) by akronman (Akron/Cleveland Ohio)        
New motor pump arrived

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I will have fun all evening. For the record and searches,
Whirlpool Dishwasher SDF 7800 W1, also known as SDF7800. Serial #F85105973 tells me 1973, which seems to match his Frigidaire stove in era.
Pump/motor assy known as 301829 or 675688 or 675688A for assembly.


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Post# 1162700 , Reply# 18   10/27/2022 at 16:45 (518 days old) by akronman (Akron/Cleveland Ohio)        
new parts kit motor pump assembly

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more fun

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Post# 1162701 , Reply# 19   10/27/2022 at 16:50 (518 days old) by Repairguy (Danbury, Texas)        

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Congrats on finding a NOS motor/pump assembly. It looks like it’s a 1976 model built the 51st week of 1978.

Post# 1162713 , Reply# 20   10/27/2022 at 21:09 (518 days old) by akronman (Akron/Cleveland Ohio)        
wow

akronman's profile picture
This has been one of the easiest repair jobs ever, thanks John for the idea of the entire pump/motor assembly. Not a drop of water on the floor, 2 loads done, very clean dishes, medium quiet machine. Upper racks have dials to move up and down, bottom rack has a foldable rear set of times. Silverware baskets are removable for easy unloading. All I ran so far is the Super WAsh B, no extra heating, and air dry, all good. WASH rinse rinse WAsh rinse rinse dry, whereas Super Scrub A does extra heating in the first wash and the final rinse, unnecessary so far. My godson's water heater tank is miles from his kitchen, I might tell him just leave the A button pressed all the time.
Highly impressed, and also believing that this 1973 machine got darn little use.


Post# 1162714 , Reply# 21   10/27/2022 at 21:42 (518 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
Whirlpool dishwasher motor replacement

combo52's profile picture
Yay Mark glad you got it working, these were really one of the best designed dishwashers ever we never charged more than 15 minutes of labor to change the pumps in these.

The relay isn’t really needed but if you changed it that’s OK they included a relay because they had an earlier design in the early 70s that could cause the motor to fail so they started including relays at one point.

As Melvin said in his post above the dishwasher was actually built in very late 78 so it’s really a 79 machine.

This machine should be good for a long time yet, they improve the impeller and seal design so this replacement pump shouldn’t fail the next 20 years or more.

John


Post# 1162746 , Reply# 22   10/28/2022 at 11:14 (517 days old) by mickeyd (Hamburg NY)        
Knew you'd love it~

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I remember you loved sudssavers, and wonder if you recycle DW water. Even though mine is built-in now, the plumbing is not, so I have a ball with the expelled liquors depending on what I'm up to, either the boil wash or the boiling last rinse or both get saved to wash the floor soak a pot, accumulating dishes, a lot of variety here.

Also, Mark, the buttons and dials allow for a lot of cycle mods. My favorite is to press the A button, let the those babies boil, then move the dial to last click on the wash cycle for the drain, and rinses. When the second rinse water is steaming, I press D, and the heated rinse stops and proceeds to drain and dry. It's a pretty green cycle. Lots of possibilities, including shortening the fill(s) which are so generous. Your nephew will be very happy.

A nothing burger.... but the dial hits a hard stop between wash and rinse, right after the D marking on the cycle plate. Wondering if you or John, etc. know why that is.


Post# 1162754 , Reply# 23   10/28/2022 at 12:17 (517 days old) by Mickeyd (Hamburg NY)        

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-

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Post# 1162765 , Reply# 24   10/28/2022 at 18:02 (517 days old) by Tomturbomatic (Beltsville, MD)        

When we had our portable dishwashers, my mom would let the water drain into a cast iron skillet in the sink for a quick wash.

Post# 1162790 , Reply# 25   10/29/2022 at 08:18 (516 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
60s and 70s Whirlpool DWs

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Hi Mark, glad you got this working.

 

Hi Michael, I always hearing your appliance thoughts and energy saving tips.

 

WP designed the mechanical stop point into the timer at the short cycle starting point so it was easy to precisely start the cycle with go guess work such as turning the dial a little too far and missing the fill period etc.

 

All you had to do to start a full cycle was to pull out the timer knob, if you wanted the short cycle you just turned the timer knob till it stopped and then pulled it out, this was also done so sight impaired people could use the DW easily, I always thought it was a very clever design that worked well.

 

John L.


Post# 1162799 , Reply# 26   10/29/2022 at 10:44 (516 days old) by akronman (Akron/Cleveland Ohio)        
yes

akronman's profile picture
Yes I let the drain water run over the worst or biggest pans, it helps.
And I think the door open handle is disconnected from shutting off the timer, you really have to push in the timer before openong the door?


Post# 1162800 , Reply# 27   10/29/2022 at 11:12 (516 days old) by appnut (TX)        

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Mark, that similar thing happened to our 1960/1961 Waste King. Somewhere along the line of about 5-6 years of usage, that began happening. Boy did my mom get a surprise the first time that happened to her when she went to add something to the load.

Post# 1162838 , Reply# 28   10/30/2022 at 00:47 (515 days old) by bigalsf (Salt Lake City)        

Sorry, a little late to this thread.

No, you do not have to push in the timer before opening the door. There is a door interlock switch that interrupts all power when the door release is pushed up. When you shut the door again and it latches the machine will resume where it left off. Whirlpool always recommended when closing the door in the middle of a cycle to hold the latch up for five seconds before latching. This allowed he air to heat up a bit preventing a rush of air out of the vent when restarting.

This is a great dishwasher with a couple of features over the built in model (the cutlery basket and adjustable upper rack). Those did not come on the built in model. I'm sure your son will enjoy it.


Post# 1162888 , Reply# 29   10/30/2022 at 17:12 (515 days old) by Tomturbomatic (Beltsville, MD)        

I think this dishwasher also has the air vent that fills with water to prevent steam from escaping during the washing and rinsing. After the last drain the water completely drains out of it to allow steam to escape during the dry cycle. All of that is a way to let you know that if you interrupt the cycle in mid flight, you should not let the door open down fully immediately or you will have a puddle of water on the floor in front of the dishwasher so hold it closed for a few seconds after pressing on the door latch to give the water a chance to drain out of the vent or hold it in a semi-open position for the same reason if you just need to add an item to the top rack.I hope your family gets lots of pleasure from this excellent dishwasher.

Post# 1162894 , Reply# 30   10/30/2022 at 18:32 (515 days old) by mickeyd (Hamburg NY)        

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As will surprise no one here, I open the door repeatedly during cycles, always eyeing the fills to see the minimal amount required to get the top "Propeller"(laughs), whirling, among other interests. Sometimes, as Bob and Mark noted, the machine does NOT stop upon opening the door, but that is not normal. This is an occasional malfunction owing to the DW's age, perhaps, because as Al pointed out, the release of the latch stops the show.

Maybe Al and John have a better understanding of what is causing the random door-latch error. Thanks so much John for the explanation of the full stop. How cool of Whirlpool to do that. Had no clue; makes perfect sense.

Fun to learn of Tom and Mark's conservation of water. Not always but sometimes, after employing the protocol I mentioned using three drained Liquors, the large sink is full, and I simply throw dishes into the sink through out the day and evening. When morning comes, the sink-full of dishes is pre-washed, and the subsequent water discharges are pretty damn clean.

When I wrote about the fragrant hot steam warming the kitchen, this happens during the DRY cycle and during my investigative door openings ;'D, but I haven't noticed steam during the wash and rinses Tom so you may be right. You've given me more to study, but I haven't noticed any water pooling on the floor.

As Mark likes to say, it all, FUN FUN FUN, and it never goes away!




Post# 1162897 , Reply# 31   10/30/2022 at 19:16 (515 days old) by DADoES (TX, U.S. of A.)        

dadoes's profile picture
 
There's a switch and actuator-lever in the door latch mechanism ... one or the other (or maybe both) are functioning erratically ... sticking or whatever ... when the latch is opened.  As I recall, a faint click is normally heard as the switch triggers when latch is raised or lowered.


Post# 1162917 , Reply# 32   10/31/2022 at 04:36 (514 days old) by bradfordwhite (central U.S.)        

bradfordwhite's profile picture
Looks like there is kitchen carpeting in this pantry. If there's a door on that and with the carpeting it should keep it quiet when running.

Post# 1162928 , Reply# 33   10/31/2022 at 07:21 (514 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
Late 70s whirlpool portable dishwasher

combo52's profile picture
Hi Michael, you probably have a sticking door switch machine should stop when you open the door, like you I often open the door many times during a cycle to add something etc.

Whirlpool recommends as with any dishwasher closing the door and not making it start for a few moments Because there is the possibility of a slight leak when the air expands and throws water out through a vent or under the door.

I do not do this I just close the door even when it’s steaming hot I’ve yet to ever have it leak but it is a possibility. If it leaks it’ll be right at the front and you will know it and you can act accordingly in the future.

John


Post# 1162939 , Reply# 34   10/31/2022 at 11:48 (514 days old) by Tomturbomatic (Beltsville, MD)        

Decades ago, I had my KDS14 on the same wall as my Frigidaire washer and the Bendix Duomatic. All of them drained into a standpipe. I would lift the hose for the KDS14 out of the standpipe and fill the Frigidaire washer pr the Duomatic with the hot water from the 3 rinses and use that for wash water for a load of whites. I had an electric water heater and conserved in any way that I could.

Post# 1162940 , Reply# 35   10/31/2022 at 13:02 (514 days old) by mickeyd (Hamburg NY)        

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When the rich Northeast Winter settles in earnest, and kitchen washer play takes full hold, I amuse myself with multiple ways to recycle water. A favorite is to use the Frigidaire Spin-Tube wet bar installation to fill the Easy washtub and/or spin rinse with the hot discharge. That way the extravagant, three full-minute tub flushes do not go to waste.

Thanks Glenn and John for the diagnosis. When the latch malfunctions I get a nice face wash.


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Post# 1163305 , Reply# 36   11/6/2022 at 16:05 (508 days old) by maytaga806 (Howell, Michigan)        

Would love to hear a video of this running!! I’m sure the interior looks beautiful now that it’s been cleaned and used a bit. Bleach is not a good idea in dishwashers due to the over sudsing especially in these very powerful older machines even regular cascade platinum pacs oversuds mine here and there. Was that the original pump and motor replacement or was that a slightly newer pump for it? So glad you got it up and running that is a true vintage Whirlpool portable! I bought a 2005 portable Powerclean two years ago, never have I had a problem other than the main detergent cup not opening during wash, needed a new wax motor and works perfectly now, machine was clearly never used very much it was in mint condition and I redid the exterior paint with my own colors and took advantage of the color reversible panel. Love these machines, it’ll definitely last another good while for you. I will never get rid of mine it’s staying with me for the rest of my life. These are dishwashing icons that should never see the dump for any reason! Happy powercleaning!!

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Post# 1163310 , Reply# 37   11/6/2022 at 16:46 (508 days old) by DADoES (TX, U.S. of A.)        

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Regular liquid chlorine bleach does not (should not) cause sudsing.  The scented and/or splashless formulations that are labeled for whitening instead of specifically for sanitizing may cause sudsing.


Post# 1167950 , Reply# 38   12/31/2022 at 07:25 (453 days old) by akronman (Akron/Cleveland Ohio)        
Working Perfectly

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I got the door limit switch installed, this portable works perfectly. My godson is remodeling and bought some new stainless steel DW, so this late 70's machine is now mine. My 82 Kitchen Aid 19 series is a built-in but its second set of racks is near death, so I'll soon install this WP as a built-in instead. Anyone know of problems in advance to convert this?

Post# 1167956 , Reply# 39   12/31/2022 at 10:01 (453 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
Installing a 70s whirlpool convertible dishwasher

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It’s pretty straightforward but you leave the cabinet on the machine. you remove the top and the wheels as usual then you end up drilling holes through the sides of the cabinet to run water, lines, electric, etc. in most cases

Leaving the cabinet on actually makes it a little bit bigger machine, so if the spaces tight for your existing built-in, it may not fit check it out carefully.

John


Post# 1168001 , Reply# 40   12/31/2022 at 19:28 (453 days old) by seedub (South Texas Hill Country)        
Reply #36

seedub's profile picture
I also would love a video of this beauty in operation.

Post# 1168047 , Reply# 41   1/1/2023 at 09:56 (452 days old) by akronman (Akron/Cleveland Ohio)        
building it in

akronman's profile picture
John, you are totally correct, the cabinet is the complete support to the machine! I'm gonna rethink this, I have other built-ins to replace the KDS-19 once the racks rust out.

Post# 1168093 , Reply# 42   1/2/2023 at 00:11 (451 days old) by GELaundry4ever (Nacogdoches, TX, USA)        
pump operation

I have a feeling that this dishwasher operates the pump while filling.

Post# 1168094 , Reply# 43   1/2/2023 at 04:24 (451 days old) by akronman (Akron/Cleveland Ohio)        
yes

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Yes, the pump starts barely seconds after the water valve opens.


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