How long do dishwashers last? Plan on nine to ten years, longer for a stainless-tub Bosch or KitchenAid, less in hard water. You will find years by tier and brand, eight warning signs, and a repair-or-replace matrix at our real prices, $90 visit credited.
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Dishwashers usually last about nine years, ten when well kept; that is the average dishwasher lifespan the studies agree on. The NAHB/Bank of America study and InterNACHI’s chart both list nine years; Consumer Reports says plan on ten. Stainless-tub Bosch and KitchenAid units commonly reach twelve to fifteen on our calls.
Nine years is the number every inspector’s chart prints. The uncomfortable part is in Consumer Reports’ member surveys: roughly one dishwasher in five has a problem inside its first five years.
A dishwasher almost never dies all at once. It leaks, stops heating, or leaves water in the bottom, and each of those is one part with one price. Whether the next part is worth buying at its age is what the matrix below answers, at our dishwasher repair prices. Already know the fault? See not draining or not cleaning.
How long should dishwashers last at each price? Price class predicts lifespan better than the logo: it decides the tub material, the pump design and the electronics behind the door.
| Price tier / form | Typical years | What usually fails first |
|---|---|---|
| Entry-level, plastic tub (builder-grade Frigidaire, Amana, base Whirlpool and GE) | 7–10 | Door latch and wax motor (the small actuator that pops the detergent cup), then the drain pump. Rack tines often rust by year eight. |
| Mid-range, stainless tub (Whirlpool, Maytag, GE Profile, Frigidaire Gallery, Samsung, LG) | 9–12 | Drain pump, inlet valve, door gasket; boards after year eight on electronics-heavy models. |
| Upper tier, stainless tub with a manual filter (Bosch, KitchenAid) | 12–15 | Wash-motor bearings, door spring cables, a leak float that trips with age. |
| 18-inch compact (condos, ADUs) | 8–10 | The small sump floods and trips the leak switch sooner. |
| Panel-ready / fully integrated | 12–15 | Same parts as its brand; the risk is a hidden leak behind cabinetry, costlier in flooring than in parts. |
Years we see on our calls; heavy use or very hard water pulls a unit to the low end.
Dishwasher lifespan by brand matters less than tier, but each maker has a signature failure. Published data is noted where it exists.
| Brand | Tier | Years | What to watch |
|---|---|---|---|
| Bosch | Upper tier, filter-based | Bosch dishwasher lifespan 12–15 in our calls (Bosch’s own repair-or-replace guide: 8–12) | E15 is water in the base pan under the AquaStop float; E24 is a drain fault. See Bosch dishwasher repair. |
| KitchenAid | Upper tier (Whirlpool-built) | 12–15 | Fewest problems in J.D. Power’s 2025 reliability study (63 per 100 units). Wash motor ages first. |
| Whirlpool / Maytag / Amana | Mid-range | 9–12 | Drain pump, inlet valve, door latch; common, inexpensive parts keep repair sensible past year ten. |
| GE / GE Profile | Mid-range | 9–12 | Tied for second with Bosch in the J.D. Power study (64 per 100). Board and latch come later. |
| Frigidaire | Entry to mid-range | 7–10 | Heating-element scale, latch, drain pump. Gallery stainless-tub models top the range. |
| Samsung | Mid-range, electronics-heavy | 9–12 | Leak-sensor trips and control boards after year eight; drain pump before that. |
| LG | Mid-range, Direct Drive wash motor | 9–12 | Drain pump and inlet valve first; the sealed wash motor is long-lived. Spray-arm jets clog in hard water. |
Thermador dishwashers come out of Bosch’s factory and follow the Bosch row.
Same model, same year, five years between their last cycles. The difference, starting with the water:
The City of San Diego reports tap water averaging about 16 grains per gallon (276 ppm), ranging 16 to 18. That scale coats the heating element, plugs the inlet-valve screen and spray-arm jets.
An empty rinse-aid dispenser leaves film you blame on the machine; too much detergent etches glass for good. An unrinsed filter makes the circulation pump run hot.
A dishwasher run twice a day takes its ten-year wear in six. Gasket, latch and pump bearings count cycles, not birthdays.
California Plumbing Code 807.3 requires an air-gap fitting on a domestic dishwasher drain. A clogged air gap or a disposer knockout plug left in place backs water into the sump and kills healthy pumps.
Each line names the part behind it and whether that part is worth buying at year nine.
Left column: your tier. Top row: how old it is. The cell is our answer, with the one parts-and-labor price that tips it.
| Your tier | At 5 years | At 9 years | At 12 years |
|---|---|---|---|
| Entry-level, plastic tub 7–10 years | Repair. A door latch and wax motor at $180–$260 buys the second half of its life. | Depends on the sticker. A door gasket at $180–$260: yes. A main control board at $220–$420 on a plastic tub: no. | Replace. It has outlived its range; anything beyond a latch is money toward the new machine. |
| Mid-range, stainless tub 9–12 years | Repair, every time: heating element with thermostat $180–$300, inlet valve and screen $180–$260. | Repair one part: a drain pump at $190–$340. Pump and board in the same year is a replacement quote. | Depends on the tub. No rust and one fault: fix it. Two faults, or a seam weeping: replace. |
| Bosch / KitchenAid class 12–15 years | Repair; it is a third of the way through its life. A Bosch E15 / AquaStop base-pan fault runs $220–$380. | Repair. A spray arm and wash motor at $180–$280 still has years to earn back. | Usually still repair a single part; wash-motor bearings or a rusted tub seam are the two faults that end it. |
Full price list: dishwasher repair. The same logic for every appliance: repair or replace.
A showroom sees a dishwasher on day one. We see which part goes at each age.
If the fix costs more than the machine is worth at its age, you are told on the first visit; nothing is ordered until you decide.
Spark’s registration with the California Bureau of Household Goods and Services is #C 62399; we are insured, and every dishwasher call rolls out of Spring Valley.
The same person who tests the pump checks the tub seam, door springs and heater, so the verdict covers the next failure too.
Five things our technicians do to their own machines at home:
In hard water rinse aid is not optional: it makes water sheet off instead of drying into spots, and stops you doubling the detergent.
An empty hot cycle with citric acid or a dishwasher cleaner clears scale from the element and sump; Samsung’s own support guidance says hard-water homes must clean the machine more often.
On Bosch, KitchenAid and most newer mid-range units, twist out the cylinder filter and rinse it monthly. Scrape plates, do not pre-rinse.
Unscrew the chrome air-gap cap on the sink deck and clear it; confirm the drain hose has a high loop and no kink.
A gasket replaced the week it starts weeping is a small repair. Left for a season it is a swollen toe-kick and a floor claim.
If the matrix says repair, you are one call away. Our vans leave Spring Valley for every corner of San Diego County; call before noon and you usually land on the same-day route with a two-hour arrival window. The $90 service call comes off the bill once you approve the work.
If a part we install fails inside 90 days, you pay nothing for the part, the labor or the drive back. The price list is on dishwasher repair; Bosch dishwasher repair covers E15 and E24.
$90 service call
Credited when you approve the repair · 90 days on parts and labor · call before noon for same-day
📞 Call (619) 330-5105📅 Book an AppointmentGive dispatch the brand, roughly when you bought it, and what it is doing; you get a straight answer on whether a visit makes sense before anyone drives. If it does, the $90 comes off the repair and the part carries 90 days of cover.
About nine to ten years. The NAHB home-component study and the InterNACHI chart both list nine, Consumer Reports says plan on ten; home inspectors call that the typical life expectancy of a dishwasher.
On our calls Bosch and KitchenAid run twelve to fifteen years; Whirlpool, Maytag, GE, Samsung and LG nine to twelve; entry-level Frigidaire and Amana seven to ten.
Toward the low end of each range unless you descale. Municipal water here is hard; the scale builds on the heating element, inlet-valve screen and spray-arm jets. A monthly citric-acid cycle and a full rinse-aid dispenser recover most of those years.
Not on a schedule. A latch at year nine is a repair; a control board at year nine on a plastic tub is not; a rusting tub ends it at any age.
Three faults account for most of our dishwasher calls: a drain pump that stops moving water, a door latch or its wax motor, and an inlet valve. Heating elements, gaskets and control boards make up most of the rest; wash motors and tubs go last and end a machine’s life.
Almost always. At five years you are under half the expected lifespan, and the typical faults at that age, a drain pump or a heating element, cost a fraction of a new machine. The exception is a cracked plastic tub.
Two lines decide it: the age against its tier’s range, and the quote against half the price of an equivalent new unit. Under both, repair. Over either, replace, unless a panel-ready install means cabinetry work.
The service call is $90 and covers the trip and the diagnosis. Approve the repair and it comes off the bill; if the machine is not worth fixing, that is the only charge. Parts and labor carry a 90-day warranty.
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