7DP840CWDB1 Whirlpool Dishwasher - Instructions

The old spring on the detergent dispenser box door failed and the dispenser door would not pop open at the right time in the wash cycle.

Ordering the new spring was easy on the website. Need dishwasher model number, stock number and serial number.

Hint - Order at least 2 springs! They are not expensive.

I followed the instructions in the video. I could get the spring on the spindle correctly but could not get the two spring prongs to catch to create spring tension on the door without using a thin knife blade to carefully push each prong to where it caught on the dispenser door.

I needed to slide the prongs slowly and carefully to get them to catch on the door. This distorted the spring. That's why you really need two springs. I then used needle nose pliers to pull the latching part of the spring to catch on the inner door. That distorts the spring, too.

So you really need two springs. One spring to learn how to do it and a second one to replace the one you distorted as you learned.

Take care

Easy fix. It’s a screw on by hand piece.

Followed the helpful instructional video that is included in the installation instructions here on this site. Had to drill out impeller to remove it due to 20 yr. old dishwasher w/ signs of hard water attack on the motor drive shaft. New part installation was quick, once the old impeller was completely removed and internal housing was cleaned.

Before installing new parts, make sure to flush out & clean internal pump housing to remove any loose debris and/or signs of rust, and carefully clean motor shaft & seal seat surface.

Also found heavy limescale buildup and soap residue on pump seal grommet & seal surface on the upper lip of the pump housing. Grommet is discontinued, but it cleaned up well along w/ seal surfaces, after soaking in white vinegar and employing a light scrub along the circumference of the seal (Not radially or perpendicular to the seal surface).

after that every thing went very well

WATCHED THE VIDEO FOR 2 MINUTES. REPLACED THE 3 PARTS IN LESS THAN A MINUTE. THANKS FOR THE VIDEOS.

Disconnected hoses (2) from pump housing. Disconnected pump housing from motor (3 allen screws, not too acessible). Unscrew spray arm from pump housing (this is done by hand; no tools as the "nut" is about 3" diameter and made of plastic) Open up the pump casing and replace impeller and the bearings on each side. The thing that takes some time is to mop the water that comes off at almost each step. There is probably an intelligent way to drain everything first. I did not order the large seal (kind of a large rubber donut, larger than a donut) between the arm and the pump and I shoiuld have as it was difficult to keep the old one from not leaking: Since by hand you cannot tighten the large nut very hard and tools could damage or break it. Applying upward pressure on the pump while tightening did it. (The pump and motor are all mounted on flexible mounts, like the heavy hoses connecting to the pump housing, so that there are no vibration.)

I poked the old gasket with a fork tine so I could get a grip on the old gasket as I didn't have pliars, pulled it out in less than 4 seconds, folded the new gasket in half and started center top of the slot the old gasket was in and pushed the new gasket in on each side from the top to the bottom. Very easy. I'd say it took me longer to open the package with my teeth than in doing all of the above.

Very easy,take off the old faucet screen and screw on the adapter. What I really liked was the ease of ordering the part. In less than 5 minutes I had located the part and ordered it. Less than 3 days later, I had the part. Way to go PartSelect.

Getting the dishwasher out was easy. Getting to the impeller was easy. Getting the impeller off of the motor shaft was the difficult part. I had to use my Dremel tool with lots of cutoff wheels to cut the impeller off of the motor shaft a little piece at a time. It appeared to be rust on the motor shaft that was causing the impeller to not come off. There is not much room for the Dremel so be careful not to nick the pump housing or cut into the motor shaft. Keep the vacuum close by to clean out the plastic impeller shavings. Clean the rust off the shaft with steel wool, fine sandpaper etc. Assembly was easy once everything was cleaned up.

I removed the three screws holding the motor on the housing. Then I took the two hoses off and from inside the washer I unscrewed the ring at the base of the wand that holds the housing in place and removed it. I then replaced the impeller and seals and reversed the process to put it back together. Cost me 26.00 for parts and shipping. I couldnt imagine what anyone else would have charged. I will do business with PartsSelect again in the future.

After getting the pump and motor off of the dishwasher, I used a screwdriver and small hammer to break the impeller off of the motor shaft. The shaft was corroded and pitted real bad but this doesn't matter because the shaft of the impeller actually goes through the seal. I removed the old seal and replaced it, slipped the new impeller back on the motor shaft and put the pump and motor back on the dishwasher. Our local repair man told us it couldn't be repaired and we needed a new dishwasher. I had the parts from Part Select in 2 days. The parts were less than $35 dollars and repair very simple. The person on your comment section on how to fix it that said to break the old impeller off of the shaft made the job very simple.

Ordered part, recieved part package, opened package, inserted screw cap rinse aid tank cover, twisted to close. Job completed. Time required about 15 seconds from opening package. Service was excellent and accurate. Thank you.

As described with instructions, removed original "bearing," installed replacement, removed original spring, installed replacement springs. Not difficult.

Reassembled lower access covers using the new screws purchased from parts direct, perfect fit replacement. Hardest part remembering how they fit Dishwasher.

I USED A PLUMBER