The cycle ends and dirty water is still sitting in the Bosch tub. That leftover pool is a drain-path failure, and it is one of the reasons San Diego owners search Bosch dishwasher repair. Photograph the model plate and the water left behind before anyone starts taking panels off.

Confirm the model and exact no-drain pattern

Bosch type plates sit on the inner door edge or along the tub rim. Most current plates list an E-Nr. (the model), plus date and production marks. If your plate uses different labels, photograph the whole sticker. The matched technician needs that string, not a guess from the 300, 500, 800, or Benchmark badge on the door.

Write the leftover-water pattern in one sentence. A shallow pool only in the filter well is not the same as a tub still full to the heater. Water that leaves during drain, then floods back from the sink, points at the house side of the hose. Water that never moves, while the pump stays quiet, is a different complaint. Water that sits after every cycle, even when the display looks normal, is different again from a stop mid-cycle with a code.

Note whether this is a built-in tall-tub unit under a stone counter in Hillcrest or North Park, a quieter fully integrated box in a La Jolla remodel, or an older install in Clairemont or Allied Gardens with a disposal under the same sink. Coastal condos in Pacific Beach often share tight sink cabinets and a high loop that got flattened during a faucet swap. Inland kitchens in El Cajon, Santee, and Escondido add mineral scale on the same parts. The machine is Bosch either way. The drain path is not.

Do not treat this as a generic dishwasher puddle. Bosch sumps use a round fine filter in the tub floor, not the flat screen many U.S. brands use. That layout changes what you can see from the door and what a technician will pull later. Keep this page for the no-drain decision. Use the Bosch dishwasher error codes guide only after you have the letters or digits on the display. Use the broader dishwasher not draining checklist if the machine is not a Bosch and the filter layout does not match.

If the unit is still under a written manufacturer warranty, keep the receipt and the install date with the photos. California’s Song-Beverly Consumer Warranty Act (Civil Code sections 1790 through 1795.8) requires covered repairs to finish within 30 days unless the delay is outside the maker’s control. Repair Pro San Diego is a match service, not Bosch factory service, and it does not hold that warranty.

What owners can observe without opening panels

Stay out of the pump housing. You can still collect useful facts from the door, the tub floor, and the sink.

Open the door after the cycle and look at the round filter in the sump. Bosch owners can usually twist that cylinder out by hand. Food film, glass chips, and lemon seeds collect there. Rinse it under the tap and seat it fully. A filter that sits proud of the tub floor will starve the drain even when the mesh looks clean. If you feel grit or a shard you cannot see, stop. Standing water hides broken glass.

Look at the sink next. Many San Diego installs use an air gap on the counter, that small chrome or plastic cap near the faucet. If it is spitting dirty water, the hose from the dishwasher to the air gap, or from the air gap to the disposal, is restricted. If there is no air gap, look for a high loop of hose under the sink. A crushed loop behind a garbage disposal in an older Clairemont cabinet will hold water in the tub even when the Bosch pump is working.

Run the disposal for a few seconds with cold water, then check the dishwasher again. A knockout plug left in a new disposal is a classic backup into the Bosch tub after a kitchen remodel. That is a house plumbing miss, not a Bosch control failure. Do not put your hand in the disposal.

If the machine is leaking onto the kickplate or the cabinet floor, shut the water supply at the valve and leave the door cracked. Do not keep resetting cycles to “see if it clears.” Unplug the dishwasher, or switch off its breaker, before you reach into the tub with a tool. The heating element and pump sit in that water.

Inland North County and East County hard water leave white crust on the filter mesh and around the spray-arm hubs. Coastal homes see less scale and more salt air on the outer door, which does not explain a full tub. Write down what you actually see: scale, food, a humming pump, a silent pump, water at the air gap, or a dry air gap. That list is what the independent technician uses first.

How cycle and control behavior narrow the complaint

Watch one full cycle, or the drain portion of one, and time it. A Bosch that washes, never drains, then sits with a closed door is not the same as a Bosch that drains, refills, and still leaves a pool. Listen at the kickplate during drain. A short hum with no water movement is different from total silence. Silence with a locked door can be a control or latch issue, not a clog.

If the display shows a code, copy it exactly, including any E or F prefix. Drain-related codes belong on the error-code page, not in a guess in this article. A code is a board’s report, not a parts list. Clearing the code without fixing the hose, pump, or filter brings the same puddle back on the next run.

Note whether the door releases on its own at the end of the cycle on models that crack the door for drying. A door that stays locked with water in the tub is a safety interlock plus a drain fault, and it is not a DIY latch job. Note whether the unit starts at all. A Bosch that will not start is a different path from a Bosch that runs and will not empty.

Skip the folklore resets. Power-cycling at the breaker can clear a stuck state long enough for one drain. It does not prove the pump, check valve, or hose is healthy. If the machine only drains when you start a second cycle, say so. Intermittent drain is still a no-drain complaint, and it is how many 800 Series and Benchmark kitchens in San Diego first show up.

Write the last detergent and rinse-aid setup too. Pods that did not dissolve, plus a cold inlet, can leave sludge in the sump. That sludge is not a sealed-system problem. It still belongs in the notes. The point of this section is a tight complaint: model, leftover water, sound, code or no code, and whether the house drain (air gap or disposal) moved when the Bosch tried to empty.

What technicians inspect along the drain path

Repair Pro San Diego matches you with an independent local appliance technician. That person diagnoses and performs the work. The brand does not stock parts, own trucks, or send “factory” crews. Ask whether the pro is registered as an appliance service dealer with California’s Bureau of Household Goods and Services, and confirm the listing on the state lookup. Registration is not a skill exam. It is the dealer registration the Bureau publishes.

On a Bosch no-drain call, the inspection usually follows the water. Filter and sump first, then the drain-pump cover and impeller, then the hose from the tub to the high loop or air gap, then the run to the disposal or branch drain. The technician checks for a stuck check valve, a flattened hose behind the cabinet, and food packed at the disposal inlet. They also confirm the control is actually commanding the pump, not just lighting a drain icon.

Electrical checks stay on the matched pro. A humming pump with a locked impeller is not a homeowner wrench job. A dead pump with no voltage is a wiring or board question. Neither one is a reason to pull the unit fully out of a stone-top opening without a plan for the water lines and the junction box.

Cost talk has to stay on published national guides, because this brand has no price list and no diagnostic fee of its own. National cost guides such as HomeGuide, checked for this network in August 2026, put typical dishwasher repair between $100 and $300, with a wider published span of $75-$600 and a typical figure near $225. The same HomeGuide page puts dishwasher pump work in the $100-$400 range. Those are national guide ranges, not San Diego quotes and not a Bosch call-out charge. Bosch’s own service trip fee could not be confirmed as a single published figure for this county, so do not treat any number you saw in an ad as the official rate. The matched technician diagnoses first and quotes in writing before work begins.

If the board stored a drain code, the technician should still prove the path, not swap a pump on the code alone. That is how this stay distinct from a generic dishwasher repair visit and from a full Bosch brand overview.

When to request Bosch dishwasher repair

Request a match when the tub still holds water after you seated the filter, checked the air gap, and ran the disposal. Request one when the pump hums and nothing moves, when dirty water comes up through the air gap, or when the same puddle returns after a “successful” cycle. Request one if water is under the unit. Standing water in a San Diego cabinet, especially in older East County and central-city housing, is a finish and subfloor problem, not a wait-and-see setting.

Do not wait on a percentage rule. There is no verified government threshold that says replace the Bosch when a repair hits half the price of a new one. Ask for the written quote, then decide. The site’s general dishwasher age note is typically 9-12 years, with the hedge that this is not a measured Bosch figure and is not a federal lifespan. For the broader brand picture, use the Bosch appliance repair in San Diego page. For age context on mixed kitchens, see how long appliances last. You can also check CPSC recalls by brand and type if you want a safety search in writing.

If the machine is in warranty, start with the maker’s process and keep Song-Beverly’s 30-day repair clock in mind. Out of warranty, an independent tech can still service the drain path. Do not assume anyone is “Bosch authorized” unless they show that status themselves. Repair Pro San Diego does not claim it.

A quiet, fully integrated Bosch in a coastal condo and a louder older install in Escondido can share the same filter and pump layout and still fail for different house reasons. The repair request is the same: leftover water, a photographed E-Nr., and a drain path that needs a licensed, insured local pro, not a guess from the door.

When to call us

When a Bosch still holds water after the filter, air gap, and disposal checks, it is time for a licensed independent appliance repair pro, not another reset. Repair Pro San Diego matches San Diego County homeowners with insured local technicians. Call (858) 988-7787 to leave a voicemail requesting a match with a local appliance repair pro.