Pump and Sump Units
Drain Pump and Wash Pump Replacement

How do we get into it?
How do we disassemble it?
Do we need to remove the unit from its space under the counter?

If you want to service the water filters and pump inlet inside the tub, and not the pump and motor under the tub, click here.

Here are a few professional tech tips to make your repair go smoother

Some of these videos have you bailing out the sump with a cup.

That’s fine, but in my opinion, a big, fluffy sponge is faster and more thorough.

Even faster than that is a siphon tube.

And the fastest and least messy, if you have one, is a wet-vacuum.

In any case, have an old towel standing by; you will usually spill a little water out when disconnecting hoses from pumps.

Make sure you plug the power cord back into the correct receptacle. Most dishwashers are plugged into a receptacle under the sink…into the same wall outlet as the garbage disposal. The garbage disposal receptacle has a wall switch…if you plug the dishwasher into the wrong receptacle, your dishwasher may not work unless the wall switch is on!


Some of these videos show you disconnecting the electrical wiring at the junction box.

That’s fine, and the only way to do it if your dishwasher is hard-wired to your house’s electrical system.

But if you have a wall plug, just unplug it. It should be plenty long enough to let you slide your dishwasher out from under the countertop.

Removing the dishwasher from under the countertop

To remove the dishwasher from under the counter, first UNPLUG THE DISHWASHER or TURN OFF THE BREAKER.

Bail or sponge or vaccum as much water out of the dishwasher as possible.

Remove the kickplate.

Reach under the tub with pliers or a screwdriver and disconnect the water feed tube.

Disconnect the drain from your house’s system. Usually this is easiest at your air gap or garbage disposer connection, or where the drain enters your house’s plumbing.

Remove the screws holding the dishwasher to the underside of the countertop.

If the dishwasher has adjustable feet, set them on the lowest setting possible, especially if there is a lip on the flooring in front of the dishwasher (perhaps there is raised tile, or linoleum or other flooring.) Make sure there is nothing sharp sticking out to gouge or scratch the flooring.

Slowly slide the dishwasher out from under the countertop, making sure your drain and fill hoses do not interfere with movement.

Re-installing the dishwasher

Re-installing the dishwasher is pretty much the opposite of removing it, with two things to watch out for.

1) When you readjust the legs, make sure you level the dishwasher. If anything, you want it sloping slightly towards the rear. Too much slope forwards can cause water to slosh over the front door sill. You will also need to raise it enough to reinstall the mounting screws into the countertop, but not so much that the countertop interferes with the door opening!

2) Make sure you plug the power cord back into the correct receptacle. Most dishwashers are plugged into a receptacle under the sink…into the same wall outlet as the garbage disposal. The garbage disposal receptacle has a wall switch…if you plug the dishwasher into the wrong receptacle, your dishwasher may not work unless the wall switch is on!

To change out the pump, you have to know the make and model of your dishwasher.

Are you sure you know your make and model?

Not so fast…

White-Westinghouse bought Frigidaire, Electrolux bought Westinghouse…Maytag bought Amana…Whirlpool bought Maytag…who can stay on top of all the design changes anymore? Designs have been blended together…for example, most Kitchenaids are basically a Whirlpool with a different spray arm. BUT…there are old-style AND new-style Whirlpools, Kitchenaids and GEs.

If you have a Miele or Bosch or Asko, it’s not such a problem.
But if you have a Whirlpool or GE, you might be looking at one of two or three different models.

But wait! It’s even more complicated than that. Whirlpool, GE, and Frigidaire produced almost identical machines under different brand names and model names. For example, one of the Whirlpool dishwashers below might be labeled Kenmore, Maytag, Roper, KitchenAid, JennAir, Amana, Estate, Brastemp, Bauknecht, Consul, Inglis, Ignis, or Indesit .

When I do a service call, the insides of the machine tell me what dishwasher I’m dealing with.

So pull out the bottom rack of your dishwasher and find the photo below that looks the most like the inside of your machine (for example, the spray arms might be a little different, The tub may be stainless steel or plastic, but the sump looks similar.)

Kitchenaid Dynamic Videos:

Kitchenaid introduced a new model in 2015.
Frankly, I haven’t seen any repairs on them yet.
As soon as I get some info on them, I’ll post it here.
In the meantime, here’s how they work.

How the dishwasher works