Key Takeaways
- A drain pump replacement starts from $225 and is the most common KitchenAid dishwasher repair.
- Code 8-1 is eight blinks of the Clean light, a pause and one blink, and means the drain pump failed to empty the tub.
- A clogged filter or a hose without a high loop produces the same standing water, and costs nothing to check.
- The hose should rise at least 20 inches above the floor before it descends to the drain.
- A pump replacement is almost always worth doing on an otherwise healthy dishwasher, set against a new unit.
The Bottom Line
Clean the filter and check the hose loop before paying for a pump. If water still stands, expect a pump replacement from $225, confirmed in writing after a diagnosis on site.
When a KitchenAid dishwasher leaves two or three inches of murky water in the tub and the Clean light blinks eight times, pauses and blinks once, the machine is telling you the drain pump did not do its job. That does not always mean the pump is dead, and the difference decides the bill. This guide sets out the KitchenAid dishwasher drain pump replacement cost, the checks that cost nothing and should come first, and how to judge a quote when the pump really has failed.
| Item | What it involves | Starting price |
|---|---|---|
| Filter, hose and high loop checks | Rinse the filters, straighten the hose, confirm the loop | No charge if you do it |
| Diagnostic visit | Reading the code, testing the pump, clearing the path | from $95 |
| Drain pump replacement | New pump fitted through the bottom of the machine | from $225 |
| Main control board | Only when the pump tests good and the drain still fails | from $295 |
How Much Does a KitchenAid Dishwasher Drain Pump Replacement Cost?
A drain pump replacement starts from $225, which is the figure in our KitchenAid dishwasher repair costs guide, where it is described as the most common repair on these machines by a significant margin. The pump is reached from the bottom of the dishwasher, which is why labor is a large part of the number. The final price is confirmed after a diagnosis on site, with a written estimate before any work begins.
The same guide explains why pumps fail so often: small objects that slip past the filter, such as broken glass, fruit pits and seeds, eventually jam the impeller. That makes the pump a victim as much as a culprit, and it is why the first question to ask after a quote is what was found in the pump.
What Does Error 8-1 Mean on a KitchenAid Dishwasher?
It means a drain pump failure, according to our dishwasher 8-1 page. After each wash and rinse stage the control commands the drain pump to empty the tub within a set time, and when the water is still there it flags the fault. The blink pattern is eight blinks of the Clean light, a pause and then one blink, and the cycle cannot advance past it.
- Standing water after the cycle — two to three inches of murky water in the sump is the classic sign.
- A gurgle, then silence — the pump starts, makes a brief noise and goes quiet before the water is gone.
- No sound at all — the page says a pump that makes no sound when drain is commanded is a reason to stop and call.
The page marks it unsafe to keep running: a machine that cannot drain will not complete cycles, and standing water becomes a hygiene concern within 24 hours. It does allow one reset to be tried, a breaker reset followed by Cancel to trigger a fresh drain attempt, which clears the fault only if the clog has gone.

Can Free Checks Save You the Cost of a Pump?
Often, yes. Two of the three causes on the 8-1 page are owner jobs, and both are listed before the pump itself. A filter packed with food and a drain hose that has lost its high loop each produce the same standing water that a failed pump does.
- Clean the filter assembly — remove the lower rack, turn the cylindrical filter counter-clockwise, lift it out with the flat mesh beneath and rinse both under warm water with a soft brush.
- Check the drain hose — follow it from the back of the dishwasher to the sink drain or disposal and look for kinks, sharp bends or a slipped connection.
- Confirm the high loop — the hose should rise to the top of the cabinet, at least 20 inches above the floor, before it descends; without it water can siphon back and mimic a pump fault.
- Run a drain — after the checks, try a fresh drain attempt and see whether the tub empties.
The page notes that KitchenAid recommends monthly filter cleaning, and that a filter clogged with food pulp is the most common cause of drain failures on KDTM and KDTE models. Our dishwasher won't drain guide walks through the same checks in order.
What Changes the Price of the Repair
Access, the machine and the cause. Our cost guide lists the drain pump as a bottom-access repair, and on a built-in panel-ready dishwasher it is worth asking whether door-panel handling adds time to the estimate. Whether the cause has been removed matters as well, because a pump jammed by glass will be jammed again if the fragments are still in the sump.
- Access — bottom access takes longer than a part reached from the front.
- Panel-ready models — ask whether the estimate includes any door-panel handling; our cost guide notes that a custom panel adds from $600 on the replacement side.
- The cause — ask what was in the pump and whether the sump was cleared.
- Related parts — a clogged hose or a failed check on the drain path can add a line to the estimate.
Is a Drain Pump Replacement Worth the Cost?
Almost always, on a dishwasher that is otherwise healthy. Our repair cost guide says that most dishwasher repairs in this class are almost always worth doing, because a new KitchenAid dishwasher starts from $1,200 and a built-in panel-ready model adds further cost for the custom panel. A pump replacement sits well inside that line.
The exception is a machine at the end of its life. If the dishwasher is old, leaking elsewhere or showing a second failure, our KitchenAid dishwasher repair or replace guide covers the wider decision, and our is it worth repairing a KitchenAid dishwasher guide is the parent for the machine as a whole.
What a Good Pump Quote Includes
A pump quote should tell you more than a number. It should show that the pump was tested, that the cause was found and that the rest of the drain path was checked, because those three facts separate a repair that lasts from one that repeats.
- The test result — the pump was commanded to drain and did not run, or ran without moving water.
- What was in the pump — glass, a seed or a label fragment tells you whether the filter has been catching enough.
- The drain path checked — hose, high loop and disposal connection confirmed clear.
- Parts and labor separately — shown as two lines, with any panel-removal time listed on its own.
Our dishwasher maintenance guide covers the monthly filter habit that keeps a new pump from meeting the same fate.
Booking the Repair
Do the filter and hose checks, note the blink pattern and run a drain, then book if the water stays. The dishwasher repair page lists what a visit covers. Book a diagnostic visit or send us the model number and what you found in the filter so the technician arrives with the right pump.