DISHWASHER NOT DRAINING · BLOOMINGTON

Dishwasher Not Draining in Bloomington Water in the Tub

An inch of dirty water in the bottom of the tub after every cycle has a short list of causes, and two of them cost nothing in parts. We check the cheap ones first — filter, air gap, disposal knockout — before we quote a pump.

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  • 1-Yr Warranty
  • OEM Parts
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(651) 364-7466
$149Trip feeWaived on repair
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Updated September 16, 2026 · Reviewed by our service manager

  • Fast windows

    We cover 55420, 55425, 55431, 55435, 55437, and 55438 daily off I-494 and Penn Avenue — Oak Grove, Penn Lake, Normandale, Bush Lake, and both east and west Bloomington — at one flat trip fee with no mileage charge..

  • ZIPs covered

    55420, 55425, 55431, 55435, 55437, 55438

  • OEM parts on the truck

    Diagnosed and quoted before any work.

  • 1-year written warranty

    Parts and labor, in writing.

Why Bloomington dishwashers hold water

Bloomington's first-ring housing means a lot of dishwashers are installed into kitchens that have been remodeled at least once, and the drain plumbing tells that story. We regularly find a dishwasher drain hose connected to a garbage disposal whose knockout plug was never removed during installation — the dishwasher pumps hard into a sealed port and nothing moves. That is a five-minute fix that a lot of homeowners have been living with for months.

The next most common cause is simply the filter and sump. On modern Bosch, KitchenAid, and Whirlpool units the fine filter at the bottom of the tub needs periodic cleaning, and when it packs with food debris and grease the pump cannot clear the sump. Hard water in Hennepin County adds scale to that mix and accelerates it.

After that come genuine component failures: a drain pump that hums but does not move water, a check valve stuck open so drained water flows back, or a clogged air gap at the sink deck. All are single-visit repairs when we know the model before arriving.

Drain problem causes, cheapest first

  1. 1. Disposal knockout plug still in place

    After a new garbage disposal install, the knockout at the dishwasher port must be removed. If it was not, the dishwasher cannot drain at all. Costs nothing but a service call to find.

  2. 2. Filter and sump clogged

    Food debris, grease, and hard-water scale pack the fine filter until flow stops. We clear the filter, sump, and impeller area and show you the cleaning routine.

  3. 3. Air gap or drain hose blocked

    The sink-deck air gap fills with debris, or the hose is kinked behind the cabinet. Water backs into the tub or into the sink during the drain cycle.

  4. 4. Drain pump failed or obstructed

    The pump hums without moving water, or is silent altogether. Glass fragments and fruit pits in the impeller are as common as an electrically dead pump.

  5. 5. Check valve stuck open

    Water drains and then flows straight back into the tub. A small valve, an easy replacement, and a very recognizable symptom.

  6. 6. Control or drain solenoid fault

    The machine never commands the drain step. Least common, and we confirm with live readings before quoting a control board.

Symptom → cause → price

Bloomington dishwasher drain repair prices

All-in for Bloomington addresses, including a verified full drain cycle after the repair.

Bloomington dishwasher drain repair prices
SymptomMost likely causePart replacedTypical all-in price
No drain at all after new disposalKnockout plug never removedKnockout removal + test$149
Standing water, slow drainFilter and sump cloggedFilter / sump service$149–$245
Backs up into the sinkAir gap or hose blockedAir gap + hose service$165–$285
Pump hums, no flowDrain pump obstructed or failedDrain pump assembly$265–$395
Drains then refillsCheck valve stuck openCheck valve$195–$305
Cycle skips drain stepControl or solenoid faultControl board / solenoid$315–$525

Prices are all-in (OEM part, labor, and testing) for Twin Cities homes and include a 1-year written warranty. Flat $149 trip fee is waived when you approve the repair.

Bloomington kitchen specifics

  • Remodeled first-ring kitchens here frequently pair a new disposal with an old dishwasher, and the missed knockout plug is genuinely one of the most common causes we find in this city.
  • Hennepin County hard water leaves scale in the sump and on the filter screen, so a proper descale during the repair keeps the drain clear longer than a simple rinse.
  • Many Oak Grove and Penn Lake kitchens still have the original sink-deck air gap, which clogs over time and is easy to overlook because it is outside the machine.
  • Bosch, KitchenAid, and Whirlpool platforms dominate here, so we carry drain pumps and check valves for those on Bloomington route days.
  • We run a complete drain cycle after the repair rather than draining by hand and declaring it fixed.

Bloomington dishwasher coverage

We cover 55420, 55425, 55431, 55435, 55437, and 55438 daily off I-494 and Penn Avenue — Oak Grove, Penn Lake, Normandale, Bush Lake, and both east and west Bloomington — at one flat trip fee with no mileage charge.

Neighborhoods on this route: Oak Grove, Penn Lake, East Bloomington, Normandale, Bush Lake, West Bloomington.

Bloomington dishwasher drain FAQs

  • Why is there standing water in my Bloomington dishwasher?

    The usual causes are a clogged filter and sump, a blocked air gap or drain hose, a failed drain pump, a stuck check valve, or a garbage disposal knockout plug that was never removed. We check the no-cost causes before quoting any part.

  • My dishwasher stopped draining right after a new disposal was installed.

    That is almost certainly the knockout plug. New disposals ship with the dishwasher port sealed, and it has to be punched out during installation. If it was missed, the dishwasher has nowhere to pump. It is a quick fix.

  • How much does dishwasher drain repair cost in Bloomington?

    Filter and hose work runs $149–$285. A drain pump replacement is $265–$395 all-in. Flat $149 trip fee, waived when you approve the repair, with a 1-year parts-and-labor warranty.

  • Can I clear it myself first?

    You can. Scoop the standing water out, pull the lower rack, twist out the cylindrical filter, and rinse it plus the coarse screen under hot water. If it drains after that, you saved a service call — and cleaning it every few months will keep it draining.

  • Why does dirty water come up into my sink during the cycle?

    That is the air gap or the shared drain line. Debris in the air gap forces water out the path of least resistance, which is your sink. Clearing the air gap and the hose fixes it.

  • Do you service Bosch and KitchenAid dishwashers?

    Yes — plus Whirlpool, Maytag, GE, Samsung, LG, Miele, Thermador, and Electrolux. Drain pumps, check valves, and filter assemblies for the common platforms ride on the truck for Bloomington calls.