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Symptom guide / dishwasher
dishwasher: the machine runs a full cycle and the dishes still come out dirty
Hard water sits behind more of these complaints than any failed part does: mineral scale closes the spray-arm holes one at a time, and the fix is a toothpick and half an hour in vinegar. The free fix on this list is the slow one: about 30 minutes of work on clogged spray arm holes (mineral scale), no part needed [S1], and 4 of the 8 causes here sit in that same column. On a dishwasher the complaint is the machine runs a full cycle and the dishes still come out dirty, and it arrives in these words: dishes come out with food still stuck on them, glasses have a white film after the cycle, the top rack is always dirtier than the bottom or the machine runs a full cycle and the dishes are still greasy. Money enters the page only after those: the completed repairs behind this symptom run $300–$480 [S2], against a replacement from $600.
the top rack is always dirtier than the bottomdishes come out with food still stuck on them
The first thing the source tells you to check, and the reason the pattern is uneven: once even a few holes are blocked, water pressure drops and whole sections of a rack stop being rinsed. The arms twist or snap off in about two minutes; clear the holes with a toothpick, then soak the arms in white vinegar for thirty minutes to dissolve the scale that built up over months. In the source's Florida and Georgia service area the tap water is hard and mineral scale sits behind many cleaning complaints. After reattaching, spin the arms by hand: they must rotate freely and hit nothing. Free. S3 prices a completed spray-arm replacement at a $283 median across its own dishwasher jobs, which is the figure to compare against if clearing the holes does not bring the spray pattern back.
dishes come out with food still stuck on themthe machine runs a full cycle and the dishes are still greasy
FIX 2 in the source's list: the filter catches what the pump would otherwise recirculate, and once it is loaded the machine washes the dishes in the water it just used. It comes out without tools on most models and is rinsed under the tap; the source's guidance is to do this monthly rather than waiting for a symptom. Nothing to buy.
glasses have a white film after the cyclethe machine runs a full cycle and the dishes are still greasy
FIX 3. The white film on glassware that the source keeps separate from food residue is usually the rinse-aid channel running dry or a detergent that is wrong for the water: powders and pods built for soft water leave a film where the water is hard. This is a consumable rather than a repair, which is exactly why it belongs in the free column before anybody opens the machine.
the top rack is always dirtier than the bottomdishes come out with food still stuck on them
FIX 4, and the one that explains a fixed pattern rather than random residue: a sheet pan or a bowl facing upward sits over the spray arm and shadows everything under it, and tall items in front of the detergent dispenser stop the door from opening. The diagnostic value is that the failure follows the loading, so a load that cleans and the next one that does not points here rather than at a part.
inlet water below the detergent's working temperature [S1]
medium likelihoodeasynot pricedabout 20 min
the machine runs a full cycle and the dishes are still greasy
FIX 5. Most powders and pods do not dissolve properly and cannot cut grease below roughly 120F at the tap, so the cycle finishes with detergent still in the cup and grease still on the plates. The source's check is the water at the kitchen tap before the machine fills; several machines also let you raise the wash temperature or turn on a hi-temp option, which costs nothing and tells you whether the heater is doing its job. If it is not, this stops being a free fix. Time basis: no published duration, book estimate.
the sources publish no figure for a dishwasher heating element on its own; S1 headlines the completed fix for this symptom at $348 and S2 prices the mechanical end of dishwashing repairs at $280-500 for a control board and $300-480 for a circulation motor
What a technician actually does
damaged door gasket letting the wash water out [S1]
medium likelihoodmoderate$140–$220 installedabout 45 minn=29 completed jobs[S4]
dishes come out with food still stuck on them
FIX 6, and the cause that also leaves a wet floor or a wet cabinet edge if you look for it. A gasket that has gone hard or torn lets water escape past the door, so the pump loses pressure at exactly the point where the spray arms need it. The source puts it in the fix-it-yourself column rather than the pro column, and S2 calls the gasket one of the cheapest repairs in a dishwasher. Check the seal for hardness, splits and a door that no longer closes with resistance. This count is S4's completed-job row; S1 stands as the diagnosis source, not as the source of the number.
S2 prices a worn door gasket as a completed job at roughly $140-220 installed, which is the figure used here; it publishes no part-only price. The n below is a second, named slice from the same publisher's dishwasher cost page: 29 completed door-seal jobs at a $292 median, which is a different measurement from the installed band above and is not averaged with it
medium likelihoodadvanced$300–$480 installedabout 120 minn=118 completed jobs[S4]
dishes come out with food still stuck on themthe top rack is always dirtier than the bottom
The source marks this FIX 7 PRO: the machine fills, drains and runs a normal-length cycle, and the dishes are still dirty because the pump is not moving the water hard enough to reach the upper rack. It is the point where the six free checks have all been done and nothing changed, and the source's own diagnostic line is that if the free fixes do not solve it, the fault is the wash pump or the control board. Time basis: no published duration, book estimate. This count is S4's completed-job row; S1 stands as the diagnosis source, not as the source of the number.
S2 prices a circulation wash motor at $300-480 installed; no separate part-only figure is published. The n below is that same dishwasher cost page's wash-pump row: 118 completed jobs at a $367 median, taken from the 2,114-repair cut rather than from the 2,684-repair cut the same publisher uses on its hard-water page, where the circulation motor stands at $374; the two cuts are named and never merged
the machine runs a full cycle and the dishes are still greasy
The board is the second half of the source's either-or diagnosis, and the one that is easy to buy by mistake. A cycle that is visibly shorter than the panel says, a dispenser that never opens, or a wash phase that skips straight to drain is a control fault rather than a water fault. S2 warns against a phone quote for this one: a repair price given without seeing the machine usually means a board has been guessed at rather than tested. This count is S4's completed-job row; S2 stands as the diagnosis source, not as the source of the number.
S2 prices a control board at $280-500 installed and notes premium European brands run higher; no part-only figure is published. The n below is the same dishwasher cost page's control-board row: 57 completed jobs at a $369 median
What each fix costs
Cause
Cost
Time
DIY?
clogged spray arm holes (mineral scale)
no part needed
30 min
easy
dirty filter and food trap
no part needed
15 min
easy
wrong detergent or no rinse aid
no part needed
10 min
easy
improper loading blocking the spray path
no part needed
5 min
easy
inlet water below the detergent's working temperature
not priced
20 min
easy
damaged door gasket letting the wash water out
$140–$220 installed
45 min
moderate
control board not running the full cycle
$280–$500 installed
90 min
advanced
failing wash pump or circulation motor
$300–$480 installed
120 min
advanced
A technician visit starts with a diagnostic fee of $99 [S2]. Completed repairs run $300–$480 [S2].
Repair or replace?
The verdict
Do the six free checks before spending anything, and treat a fault that survives all six as a mechanical one. If the machine is under eight years old and the diagnosis is a pump or a board, repair it: $300-480 against $600-1,000 for a mid-range built-in plus $150-250 to install and haul the old one away is not close. Past ten years, with a board or a pump gone and a second fault likely, replacement wins, because the machine's remaining life is shorter than the part's. [S2]
Plus install and haul-away: $150–$250 — about $750–$1,250 installed all in [S2]
Planning life used for the decision: 10 years
Three of the eight causes on this page carry a published job count, all three from the same publisher's own dishwasher repair cost table: door seal or gasket 29 jobs, wash pump or circulation pump 118, control board 57. The five cleaning-specific causes carry none, and the source itself explains why: the same table is restricted to repairs where a part was installed, and the source states that cells with fewer than ten completed jobs are not published. A rinse-aid or loading problem and a scaled spray arm are not part-replacement jobs at all, so no row exists for them to have a count on. Five of eight causes therefore have no published denominator, stated here rather than filled with a number nobody published. The record-level denominator is bound by name to the dataset the counted causes come from: the 2,114-repair dishwasher cost table whose per-part rows carry the three counts above, as that page declares itself. The 204 those three rows add up to is a subset of the 2,114 and is never a total. The same publisher's 2,684-repair hard-water cut is a second, separate dataset, and it is used on this page only for its own named installed-cost rows and for the whole-record median it publishes there ($338 across 2,684 repairs): it is neither added to the 2,114 nor used as this record's denominator. 2026-11-02 measurement: all four declared sources downloaded (S1 71.7 KB, S2 25.5 KB, S3 72.6 KB, S4 81.2 KB); S1 publishes whole-dishwasher median $305 across 3,053 jobs, S2 installed-cost bands only, S3 hard-water median $340 across 2,846 jobs with component medians, S4 per-part medians including wash pump 122 jobs at $377 labeled 'Will Not Clean' — no source publishes a symptom-level median with denominator for the full dishwasher-not-cleaning symptom set, confirming the five DIY causes have no published count.
The break-even is the installation, not the part: a built-in dishwasher has to be unplumbed, slid out and a new one fitted under a countertop, which is why S2 prices $150-250 of labour and haul-away on top of a $600-1,000 unit. That is the number a $348 median fix is being compared against, not the sticker price of the dishwasher alone.
S1's repair-or-replace line puts the age where a control board or pump repair stops making sense at around ten years, because the components around the failed one are near the end of their lives too; the source does not publish a design life for the cabinet itself
Have a quote?
Put your quote and the age of the unit into the calculator — the same half-of-new-price rule, with your own numbers.
[S1]Bozmanfix (field fixes; page updated September 2026) (2026-09). the seven-cause list and its split into six DIY fixes plus one pro fix, clogged spray arms as the first check with the vinegar soak and the hand-spin test, the hard-water and mineral-scale finding, the monthly filter rinse, the detergent and rinse-aid distinction, the loading rules, the 120F detergent threshold and the hi-temp option check, the door gasket fix, the wash-pump-or-control-board conclusion, the $99 waived diagnostic and the $348 headline fix for this symptom
[S2]FlexFul Appliance Repair (Chicagoland) (2026). installed 2026 price ranges (clogged filter, air gap or drain hose $130-200, drain pump $210-360, water inlet valve $180-290, door gasket $140-220, hinge springs $170-280, sump gasket or lower door seal $250-400, control board $280-500, circulation wash motor $300-480), the $75-110 diagnostic band with the warning about phone quotes and inflated free diagnostics, and the replacement maths ($600-1,000 for a mid-range built-in plus $150-250 installation and haul-away)
[S3]Bozmanfix (medians from 2,684 completed dishwasher repairs; page published August 2026) (2026-08). the $338 median across 2,684 completed dishwasher repairs with the middle half at $275-419, the component medians (spray arm $283, water inlet valve $340, heating element $362, circulation motor $374), the $99 diagnostic applied to the repair, the USGS hardness classes (hard above 121 ppm, very hard above 180 ppm) with the source's own metro ranges, the mechanism by which scale insulates the heating element and clogs the inlet valve screen and the spray jets, the vinegar test that separates mineral film from permanently etched glass, the monthly citric-acid descale protocol, the rinse-aid and detergent-dose guidance for hard water, the finding that hard water shortens the machine's service life, and the buying advice (a built-in salt-fed softener, a stainless steel tub, a manually accessible filter)
[S4]Bozmanfix (medians from 2,114 completed dishwasher repairs across Florida, Georgia, North Carolina and Texas; page 2026) (2026). the per-part table with the number of jobs behind each median: door seal or gasket 29 jobs at $292, water inlet valve 27 at $330, drain pump 99 at $335, heating element 24 at $355, motor 18 at $362, wash pump or circulation pump 118 at $367, and control board 57 at $369 - the three n= counts on this record (29, 118, 57) come from this table; the page's own dataset figures (median dishwasher repair $328, middle half $272-397, 2,114 completed jobs); the brand table (Frigidaire 181/$310, Bosch 195/$315, Whirlpool 326/$328, LG 55/$328, GE 383/$330, Samsung 163/$330, Maytag 39/$346, KitchenAid 82/$375) and the state table (Georgia 978/$335, Florida 814/$336, Texas 90/$333, North Carolina 133/$297); the published minimum samples (10 completed jobs for a part cell, 25 for a brand, 50 for a state) and the note that one appliance per job is counted so a refrigerator repair never inflates a dishwasher figure; the $99 diagnostic applied to the repair; and the new-unit arithmetic ($500-900 for a mid-range dishwasher before installation). This page's 2,114-repair cut is NOT the same dataset as the 2,684-repair cut the same publisher uses on its hard-water page (S3), so the two circulation-motor figures ($367 at 118 jobs here, $374 there) are named separately and never merged or summed
Last verified: 2026-11-02. Prices are US market figures from the sources above; your quote may differ.
Built from a fact record, not from a template: every number above is tied to one of the sources and the record is re-checked against them. Editorial choices (which symptom leads, which cause is the single tell) are kept in a separate block so the facts stay auditable.
Quick answers
How much does it cost to fix a dishwasher with this problem?
Completed repairs run $300–$480 according to the sources cited on this page, after a diagnostic fee of $99.
How long does a dishwasher last?
The decision rule used on this page works from a planning life of 10 years.
Repair or replace?
Do the six free checks before spending anything, and treat a fault that survives all six as a mechanical one. If the machine is under eight years old and the diagnosis is a pump or a board, repair it: $300-480 against $600-1,000 for a mid-range built-in plus $150-250 to install and haul the old one away is not close. Past ten years, with a board or a pump gone and a second fault likely, replacement wins, because the machine's remaining life is shorter than the part's.
