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Thread Number: 93875
/ Tag: Vintage Dishwashers
Whirlpool 8770 DW Returned to Service |
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| Post# 1185298 7/19/2023 at 21:34 (289 days old) by lebron (Minnesota) | ||
Hello all, I found this absolutely beautiful Whirlpool dishwasher recently and would like to share. The model # is DU8770XY-1 and the serial # is FC3858582. I believe it is a 1993. The machine appears to be very low use. The previous owner had it set up in bisque, so the black is just pristine. I decided to take the pump assembly out and it was pretty crusty. I managed to get it somewhat cleaned up though. Is there supposed to be a gasket under that little grey pump cover?? My kit didn't come with one. I left the bottom pump impeller alone as it seemed pressed on and I didn't want to break it. I broke the wash impeller on the way in, so I had to use the replacement part. Unfortunately the replacement part sits a bit taller as you can see in the photo. I decided to cut down the difference with a hacksaw to stay true to original form as much as possible. The macerator and the metal collar were also different so I ended up reusing the original ones. They must be for a newer iteration of the PowerClean? The stack-up for the spring/collar/macerator seemed really tight, and I know nothing about working on these PCs so I definitely didn't want to experiment with mix and match.
After I finally got the machine cleaned up and put back together, I could not get it to cycle through at all. Imagine my frustration! The thermostat and heating element both proved to be good, so I had no choice but to tear into the timer. I was pretty happy to find that it was nearly cracked in half. My guess is that the timer on this machine broke a long time ago and that it sat unused ever since. That explains the seemingly low usage- but who knows. Luckily I bought a spare timer the moment I picked up this machine and it actually was the correct one and worked. I just didn't know how quickly I would be needing it. I have ran the maiden load through it and the machine seems to run perfectly now. I'm sure other problems will creep up, but it's fun to have a real DW again. The only thing I've noticed is that there remains a little bit of water left over in the sump after the cycle completes. Is this normal?? | ||
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Post# 1185307 , Reply# 1 7/19/2023 at 22:02 (289 days old) by Tomturbomatic  (Beltsville, MD) |
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Congratulations! | ||
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Post# 1185324 , Reply# 2 7/20/2023 at 06:12 (288 days old) by combo52 (50 Year Repair Tech Beltsville,Md) |
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1993 whirlpool power, clean dishwasher
Hi Jed , yes, this is a great performing dishwasher. Hopefully you’ll get some good use out of it.
Whirlpool redesigned some of the pump parts once or twice it would be good to grab a complete pump and motor assembly for one of these sometime. You may need it in the future It should not be leaving any visible water in the sump, so something may not be quite right with the pump. John | ||
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Post# 1185328 , Reply# 3 7/20/2023 at 08:58 (288 days old) by peteski50 (New York) |
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Whirlpool! | ||
| Post# 1185844 , Reply# 5 7/25/2023 at 19:36 (283 days old) by lebron (Minnesota) | ||
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Hey all, thanks for the replies. I enjoyed reading them. You're never going to believe this, but I found this machine's baby brother while looking for a parts machine: a 1994 DU8500. Here's the kicker though, it's brand new and never used! Look at how minty the PowerClean Module is! The racks are still perfect and snow white. I'll definitely be using this new DU8500 as it's not everyday you find NOS for your daily driver.
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| Post# 1185847 , Reply# 6 7/25/2023 at 19:46 (283 days old) by Repairguy (Danbury, Texas) | ||
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Post# 1185849 , Reply# 7 7/25/2023 at 20:50 (283 days old) by combo52 (50 Year Repair Tech Beltsville,Md) |
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Brand, new, whirlpool, power, clean dishwasher | ||
| Post# 1185855 , Reply# 8 7/25/2023 at 21:42 (283 days old) by lebron (Minnesota) | ||
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Thanks guys. John, here's what I know of the story and my speculation. I see the machine listed for sale. Not many details, but just said upgrading and I could see that the machine was very clean. I make the long drive and find it's an extremely affluent appearing private/rural neighborhood with extravagant houses - also right along the Mississippi River. My guess is that it was a cabin machine in a super nice/expensive lake house and simply sat unused. When I got there, the woman told me they just bought the place and the machine was unused. She ultimately decided to upgrade. After she said this I literally couldn't shove the money in her hand fast enough. I loaded up the machine and sped off. While I was there, I never even fully comprehended it was unused. Originally slated to be devoured for parts, I actually processed what I had on the ride home and realized this was the better machine. This new 8500 does not leave any water in the sump at all like you said they should so I can practice diagnosing the issue on the old 8700 at my leisure now.
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| Post# 1185859 , Reply# 9 7/25/2023 at 22:06 (283 days old) by lebron (Minnesota) | ||
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