Westinghouse Continental 500 Dishwasher Part II

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reactor

Well-known member
Joined
Apr 2, 2019
Messages
495
Location
Oak Ridge, Tennessee--
For those who missed my previous post in Shopper's Square, a 1975 Westinghouse dishwasher was listed for sale. This was the last year Westinghouse produced appliance before selling their appliance division to White Consolidated Industries in December, 1975.

The dishwasher did not sell, so the seller, Lori, kindly gave it to me. She indicated it "smoked" when she turned it on and turned it off immediately to prevent further damage.

The dishwasher shows no rust whatsoever, on neither the tub nor the racks. (By the way, he pictures turned out with a yellowish cast, in the close up of the rack. that is not their actual color, which is white.)
The design was a new one for Westinghouse, sporting a horizontal motor with pump and fan in a combo unit.

The fan provides forced air to dry the dishes, meaning the main pump motor runs for the entire duration of the dry cycle. You can see the flat ventilation tube, in picture number 10, running from the motor unit to the side of the tub. It draws hot. moist air off the top of the tub through a vent on the inside.
In picture 3, you see the air exhaust from the drying fan, with a funky looking foam rubber boot, which is the orange oddly shaped object you see. It acts as a plenum and extends to the vent under the underside of lower access panel, to expel the moist air from the tub during the drying cycle.

In pictures 7 and 8, you can see the drain solenoid with the heat sink surrounding the coil. Another unusual feature is this coil is energized at all times, EXCEPT
during the drain component of the cycle.

As you can see, Westinghouse is using a tower wash system. The tower (photo 6) is installed in the middle of the tube/sleeve (photo 5) which is mounted on the center of the rack.

You can see the bottom of the tower has a rubber seal surrounded by little plastic protrusions. On the lower wash arm (no pictures, sorry) a little tiny white plastic tube, I call it a nub, with a beveled edge, rises up about and inch and a half. The nub is guided to the center hole in the seal by the protrusions, making a sealed delivery system of water from the lower wash arm to the tower's spray head (Westinghouse calls this spray head the "distributor.")

Notice, the tower has a threaded end where the sprayer/head is supposed to be. As it is, with the head missing, water would just shoot straight up without being distributed evenly to the upper rack.

Sadly, even if the dishwasher is repaired, I cannot use it without a distributor on the spray delivery tube.

Questions for everyone: Does anyone have a spare wash tube with spray head attached or the just head/distributor itself? I will gladly purchase it from you.

Secondly, the drain solenoid's plunger is in the out position, which would indicate that it is currently in the drain position, as it is un-energized. It is attached, by a spring, to the drain valve actuator (the actuator looks similar to GE's).
The problem, this valve will not rotate in the direction toward the solenoid. That means the solenoid cannot pull the actuator toward it, to stop the draining, when it is energized. Oddly, the plastic actuator will rotate easily in the other direction. This does not make any sense.

I may be looking at it wrongly but can see no way the plunger can make any movement on the actuator when it is pulled in. The plunger moves into the coil easily when I push it in with my finger, but only stretches the spring out that connects it to the plastic actuator. HELP!!

Thirdly, does anyone have the repair manual for the 1975 model (SU500) year? I will you pay for a copy of yours. Ephemera has a 1974 manual, but I threw away $13.00 downloading it, as it is for the vertical pump Westinghouse dishwashers. Evidently, Westinghouse had just gone to this design for the 1975 year.

Any help is appreciated!

Barry

[this post was last edited: 9/3/2023-18:58]

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A big thank you to SteveD!!

Many, many thanks to Steve who sent me copy of the repair manual! You are lifesaver, Steve!![this post was last edited: 9/3/2023-18:31]
 
door panel removed-a look inside

Removed outer door panel. No rust inside. Has a thermoelectric release for detergent cup and solenoid controlled rinse agent dispenser.

On the inside of the door panel is the schematic and timer diagram. This Westinghouse has only five water changes.. wash, rinse, wash, rinse, rinse. The first wash is the longer, at 18 minutes.

Will post more pictures when I remove the control panel and also when the pump is removed.

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Did they keep this design when they turned into White-Westinghouse?

Another thing to know from living in the area was that 1975 was about the time things started to go south for Westinghouse as a company and all the layoffs started, in many of the different products they had back then.
 
Did they keep this design when they turned into White-Westinghouse?

Another thing to know from living in the area was that 1975 was about the time things started to go south for Westinghouse as a company and all the layoffs started, in many of the different products they had back then.
 
white-westinghouse

In checking, as near as I can tell Bob, White Consolidated kept the same basic design, for the 1976 model year, but made a few changes. They modified the pump assembly somewhat and put wheels on the lower rack. The upper and lower rack design remained virtually identical, but they cosmetically changed the control panel a bit.
 
Westinghouse!

I am surprised they didnt have a light or as westy would call it a single wash cycle
was this considered to be the TOL - I think the sanitizer boosted up to 145 degrees in the main wash and final rinse.
 
SU 700

Hi Peter, this dishwasher was their middle model. The TOL was the SU 700. It had two additional buttons, one for "Gentle Wash" and one for "Single Wash," which, as you say, was their equivalent to a light wash. The SU700 also had a white porcelain tub as opposed to the blue porcelain of the SU400 and the SU500.
 
Great! Send me your address & I'll get it out to you next week (I'm going out of town tomorrow for the weekend).

I actually have the SC700 (portable version of the SU). When I got it everything worked, but it had a bad leak. Interestingly the leak would stop as the unit was running! I could not figure that out, but it ended up having two issues: the shaft seal was going/had gone and the drain valve stem had a leak. When I tried to repair the seal I discovered the motor shaft was rusted almost through; the fan was seized to the shaft and the set screw was frozen. I tried everything to get that fan off, but the motor shaft was so badly damaged that it new shaft seal would not stop the leaking.

When I started looking for a replacement motor & pump I landed on one from a much later series (once they were White-Westinghouse). Through use of a timed "off-delay" relay I was able to adapt it for use in this machine. I also had to change the wash arm & support from the original to a later style (shaped more like GE's). The bearing/locking ring of the original wash arm has two broken tabs; it will not lock onto the support. Also, I think my timer might be operating erratically; it doesn't follow the sequence (Esterline) chart exactly (minor differences, but they're there). In any case I was able to clean it up and had the cabinet powder coated in Racetrack Yellow! The machine works OK; loading is a kind of rigid, but mine has the adjustable upper rack which makes it able to take tall things in either rack. It's also very noisy! :)

I actually saw your post and was thinking of contacting the seller, but you beat me to it! No worries, I hope you can get it going.

Here are the "before" pics:

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While it may not be the best performing dishwasher it really turned out well! It's a very stylish machine. I love the moniker "Continental". So MCM! I'm working on a cutting board for the top.

The pics show the original wash arm & support; I had to change it because it kept popping off the support (even with the wash tower over it). I used a wash arm & support from the next series (just after they became part of WCI). I think it was model SC650 (?). It works ok, but I'd like to find the original support.

Also, the third pic in the "after" series shows the motor & pump I adapted. In order to keep the drain valve from opening it is tied to a relay which holds the switch open. When the timer calls for the drain solenoid to de-energize, the relay opens and completes the circuit to the drain valve. Since the pump action will keep the valve open, the delay off relay in series with the drain valve opens the circuit to the drain valve after about 5 seconds. This prevents the solenoid from overheating. It also keeps it off during the dry cycle.

I'm working on a way to get the motor to turn off during the dry cycle and incorporate a fan to pull air through utilizing the existing air duct; I haven't figured that out just yet!

Please keep us posted on how your repairs are going.
 
Many Thanks!

Thank you so much, Alan!! I'll send you a message on this site. Your Continental looks beautiful! You have put much time and effort into it, and it shows.
 
Washability

Brian, Alan could tell you more about how the Westinghouse cleans, as I have not got mine up and running, yet. Consumer Reports rated it at washing, "slightly below average.". Of course, using the "power soak" cycle should increase the performance.

If you are referring to the white object at the back of the tub bottom, that is the grate that prevents large objects from entering the pump. There is no filter, as such, on this machine, just the soft food waster disposer.
 
progress....

The previous owner had indicated the dishwasher "smoked." Before energizing the whole dishwasher , I powered up the drain solenoid, the fill solenoid and the main motor independently to make sure none of them were the smoking culprit. Each worked fine, no smoke. The motor is surprisingly quiet. The drain solenoid is strong, and loud, when it clicks in. Almost made me jump.

(Loud solenoids seem to be a Westinghouse trademark.😊 For those who have/had the Westinghouse front loading washer with the solenoid that clamped the pulley on the spin belt, know what I mean. It could be heard throughout the house when it kicked in.)

Powered up the entire dishwasher. It ran fine for about five seconds and I heard a small electrical arc, then white smoke poured out of the control panel. Pulled the plug as quickly as possible. Almost no odor. Most insulation burns, I have experienced, usually smell and give darker smoke.

Nevertheless, I took the control panel off and checked for burned wiring and arc points.
None. Thought maybe some organic material had gotten between two conducting points, but found no evidence of it. No burn or overheating marks on any of the wiring. The dark area you see on the control panel may have been caused by smoke, but the connectors above it showed no signs of carbon or arcing, but did have some dirt/corrosion, as you can see.

Blew out the switches and lubricated the timer motors and put panel back.

Removed endcap of motor and lubricated. Put all back together and started it up. Motor purred and and the rapid advance timer did it's job and moved the timer through it's paces.

No smoke this time.

Next step is to put water in and check for leakage. Alan is kindly sending me the tower and distributor. When that arrives, I will be able to run a test load and will post pics.

We'll see how well a Westinghouse can handle a Bobload!
[this post was last edited: 9/10/2023-15:03]

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Barrry, if you cab do a couple of BobLoad tests, I"d love it. One with Double Wash with maybe santizer and the other rwith Power Soak & Sanitizer option. Does this happen ot have a tiple detergent dispenser or just 2 for ordinary prewash and main wash. A friend of mine had bought a condo in Houston in about 1975 or 1976 and it had the ability to havr 2 detergent added prewashes as well as the main wash. This was also about the same time D&M got rid of the rotorac Kenmores and their LK or Sears Best model had the "exclusive triple detergent dispenser.
 
dispensers

Hey Bob! It has two open dispensers for prewash and one covered dispenser for the main wash. I'll try both combinations that you have mentioned to test washability.
My biggest concern is the carryover water from fill to fill, and having only two final rinses.

As you can see from the size of the sump (Westinghouse calls it the trap) it holds a lot of water that remains in there, as do the GE's with the horizontal pumps. With only two final rinses there is likely going to be a small amount of detergent residue remaining on the dishes. GE of the same era looks to have had about the same carryover, but they had three final rinses to compensate.

If I install and use this as a daily driver, likely I will put the detergent packet in the first prewash and then let it have four final rinses.

Oddly, the first wash is 18 minutes. The main wash is only ten. Have no clue what the power soak will do as far as time extension. I assume it will lengthen the second/main wash. Unknown if the sanitizer heats the second wash or the final rinse. How the options affect the main cycle is not indicated on the timer diagram.

Testing requires carrying two days of dirty dishes in a laundry basket, from the main floor of the house, to the lower level laundry room where I have to use the washer outlet to supply and drain the dishwasher. [this post was last edited: 9/11/2023-09:56]
 
 
Dispenser photo rotated for readability.

The instructions engraved into Cup 3 state:

  Single Wash — Fill Cup 1

  Double Wash — Fill Cups 1 + 2

  Power Soak — Fill Cups 1 + 3

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In the impeller machines that did not have a detergent dispenser and therefore no prewash in the cycle, the cycle began with a warm up spray/purge before the wash. The water heating period on the timer dial was called the Power Soak where the motor ran along with the heating element to raise the water temperature to 140F.
 
Last Westinghouse, Dishwashers, 1971 through 74

Thank you Barry for documenting this unusual and very ill fated dishwasher. It’s been interesting to see that they actually made a fancier version of this. I’m sure 80 or 90% of these dishwashers were the most basic model as nobody who took a serious look at Dishwashers would ever have purchased this machine if they were looking for a quality dishwasher, can you imagine selecting this over a Kitchenaid whirlpool Maytag, or even a GE from this period.

And thank you Alan for your insight and all the work you did restoring the one you have.

Here are some pictures of the one we saved for the museum. Ours is a 1971 model this dishwasher. What is the popular very basic version which was the bulk of their sales to builders, etc.,

The basic version at six water changes, and only a measuring cup for detergent as it goes immediately into the first wash.

These used a Westinghouse built motor that actually used more electricity than the awful GE motors that they used for decades.

As you showed Alan, the motor shaft would rust so badly on these motors at the shaft would literally get down to about 1/2 of its normal half inch diameter. However, we were always able to clean up the end of the shaft and use them in spite of the horrible looking shaft when we rebuilt the pumps on these machines.

This design pump and motor and the machine overall disappeared immediately as soon as the ink was dry on the paper when WCI took over Westinghouse appliances.

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heat sink

Why is there no heat sink on your drain solenoid, as mine has, John? That would certainly shorten its life with it's being energized for the majority of the cycle.

Tom (turbo), if the Westinghouse impeller machine did not have a detergent dispenser, then what kept the detergent from being dissolved and flushed down the drain during the initial warm up spray/purge?
 
Barry, on the Westinghouse impeller dishwahers, there was a fine-mesh dispenser that held detergent in that mesh basket until the dishwasher did its usual charge of water for the fill. Neighbors across the street had the 1960/1961 roll-out Westinghoouse model just as Tom described. Not only was there a thermal hold for the Power Soak wash but also during the final rinse to raise the water temperatturre berfore the dry cycle began. And if I remember correctly, the impeller ran during th3e dry cycle. I was routinely exposed to this dishwasher from about the age of 7 or 8 in fall of 1961 until it was replaaced with a KDS16, which was in that house until it was sold inn like 2013 or 2014.

The 1960 Westinghouse Dishwasher brochure in Ephemera has the exact model that our neighbor had in seafoam green color.
 
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