How much does a dishwasher drain pump replacement cost?#
A dishwasher drain pump runs $125 to $240 to replace, with most visits landing around $183. The component is moderately priced, so the bulk of the charge is the labor to reach it beneath the tub and swap it in. That places the job comfortably below the $400 to $1,200 a new machine costs installed, which is why standing water at the end of a cycle is almost always a repair rather than a reason to shop. It is also, often, not a repair at all. The dishwasher drains through a path it does not own — a filter, a hose, an air gap, and on most American kitchens a garbage disposal — and a blockage anywhere along it leaves exactly the same inch of water in the tub that a dead pump does. One of those causes is a plastic plug a plumber was supposed to knock out and did not, and it is the single most common reason a brand-new dishwasher will not drain. Work the table before you price the part.
Standing water: work the drain path before you buy a pump#
The order below is deliberate — it runs from the causes that cost nothing to the one that costs the price at the top of this page. Stop at the first row that matches your kitchen.
| What is true in your kitchen | What is happening | What it costs to fix |
|---|---|---|
| A garbage disposal was fitted, or replaced, at some point after the dishwasher | The knockout plug in the disposal inlet was never removed, so the drain hose is discharging into a sealed port | Nothing. This is the classic, it strands brand-new dishwashers, and it takes a screwdriver and a hammer. |
| The disposal is slow, or the sink drains badly too | The dishwasher is draining into a blocked shared line | Nothing but the time to clear the disposal and the trap. The dishwasher is a bystander. |
| The filter in the bottom of the tub is packed with food soil | Water cannot reach the pump inlet fast enough to be pushed out | Nothing. Lift it out, rinse it, and re-run. |
| The drain hose runs flat, or is not looped up high under the counter | Water siphons back into the tub after the pump has done its job | Nothing but a cable tie. The high loop or air gap is what stops the back-flow. |
| The pump hums or buzzes during the drain phase but no water moves | A jammed impeller — glass, a fruit pit, a bit of label | Often nothing. Open the pump cover in the tub and clear it before ordering a part. |
| Total silence during the drain phase, everything above already checked | A dead pump motor | This is the $125 to $240 repair the page is about. |
| Drainage that is slow rather than absent | A partial restriction somewhere in the path above | Trace the path. A new pump pushes into the same restriction and drains just as slowly. |
| Water in the base tray, or a leak-detection fault showing | A leak, which the machine is treating as its first priority | A different repair, and it has to be settled first. The float will keep the machine locked out regardless of the pump. |
Denominator: the $125 to $240 on this page is one figure for one job — a dishwasher drain pump, part plus labor, fitted by a shop — against $400 to $1,200 for a new machine installed. Two figures, not an average across brands or regions, and none of the free causes above is inside them: a knockout plug, a blocked disposal, a packed filter and an unlooped hose are things a household fixes, and a service visit that finds one of them is billed as a diagnostic rather than as this repair.
Dishwasher drain pump replacement cost
- What it does: the drain pump pushes water out at the end of a cycle.
- Signs it is failing: standing water, a humming pump, or a cycle that stops before draining.
- The repair job: clearing the pump, fitting a new one, and testing a full drain.
- DIY or pro: often owner-fixable if the pump is easy to reach.
| What you pay for | Typical cost |
|---|---|
| Part plus basic labor | $125 |
| Typical repair | $183 |
| Premium part or hard access | $240 |
| A new dishwasher, installed | $400–$1,200 |
Against a new dishwasher at $400–$1,200 installed, a drain pump repair at $125–$240 is usually the cheaper fix — unless the dishwasher is already old or has other faults.
Pro note: before buying a pump, a tech clears the filter and hose — a coin or a sock jamming the impeller looks exactly like a dead pump.
Do You Have the Right Tools?
Water pressure gauge ($60), spray arm tester, float switch multimeter ($85), and drain inspection camera. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Is replacing the drain pump on a dishwasher worth it?#
This fix makes sense on nearly any working dishwasher. At $125 to $240 versus $400 to $1,200 for a replacement, the numbers strongly favor keeping the appliance, and a unit that cannot clear its water is simply unusable until the problem is solved. Only a very old machine already showing other faults tips the decision toward buying new; on everything else, restoring drainage is money well spent.
Dishwasher Drain pump replacement cost: FAQ#
How much does a dishwasher drain pump replacement cost?#
Budget $125 to $240, typically near $183. The part sits in the mid range, and most of the price reflects the time to access the sump, verify the fault, and fit the replacement.
Is replacing the drain pump on a dishwasher worth it?#
Yes on any reasonably aged unit. The $125 to $240 outlay is a fraction of the $400 to $1,200 a new dishwasher would cost, and a machine that leaves dirty water behind is out of service until it is fixed.
What makes the drain pump fail on a dishwasher?#
It jams on glass shards and food debris, wears out its impeller, or the motor inside simply burns out. Owners see water pooling at the bottom, hear a humming that never clears, or find the cycle stalling before it drains.
Can I replace a dishwasher drain pump myself?#
A handy owner can manage it on many models, since it is reached from below or through the tub floor, but ruling out a plain clog in the filter or hose first is where a professional saves you an unnecessary part.
How long does a dishwasher drain pump replacement take?#
The work usually takes about an hour, covering clearing the sump, confirming the pump rather than a blockage is at fault, seating the new one, and running a drain cycle to prove the water clears.
Appliance Repair Technician · 8 years experience
Experienced technician with 8 years specializing in dishwasher repairs and European appliance brands including Bosch and Thermador.
