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Symptom guide / dishwasher
The dishwasher will not start, and the panel is either dead or lit with nothing happening
A dishwasher that will not start is usually being blocked rather than broken, and the panel deliberately does not tell you which of the two it is. Read the code before the symptom, because on this machine it separates two different faults: E15 is a safety lockout: the base pan has water in it, so the machine refuses to start a cycle rather than pump more water into a leak [S1]. No source behind this page publishes a per-code median, so no figure is attached to the code itself. The complaint arrives as the dishwasher will not start, and the panel is either dead or lit with nothing happening, described as no lights on the panel at all, the start light blinks and nothing happens, it beeps but the cycle never begins, the machine worked yesterday and now it is dead or the buttons do nothing but the display is lit.
What the fault looks like
Fig. DISHWASHER - WONT START
What the E15 code on a dishwasher means
E15 (also shown as E:15, E:24) — a safety lockout: the base pan has water in it, so the machine refuses to start a cycle rather than pump more water into a leak [S1].
high likelihoodmoderate$200–$320 installedabout 60 min
the start light blinks and nothing happensit beeps but the cycle never begins
The part of dishwasher design that surprises people, in the source's words: the door latch is a power switch, not a catch. Until the latch closes the safety switch, the controls receive no power and the panel behaves like a machine with a fault. That is why a dishwasher can be completely dead and need nothing more than a latch that is not quite closing - and why the same symptom follows a door that has dropped, a bent strike or a rack in backwards. If the latch is the fault, the source's price is a service call plus the part.
the sources price the latch as a completed job rather than a part: S4 puts a door latch or interlock at $200-320 installed, and its guide prices the latch among the cheap dishwasher repairs
failed thermal fuse protecting the control board [S1]
medium likelihoodadvanced$280–$500 installedabout 75 min
no lights on the panel at all
The first of the two parts people jump to, and the one worth reading as a message rather than a fault: a thermal fuse is one-way, and it opens because something got hot. On a dishwasher the usual reason is a control board drawing too much or a cooling path blocked, so replacing the fuse alone is how the same repair gets paid for twice. The source's order is deliberate: blockers first, then the fuse, then the board.
no cited source prices a dishwasher thermal fuse on its own; S4's installed range for the board-level repair is $280-500 and that is the band a fuse job falls inside
medium likelihoodpro$280–$500 installedabout 90 minn=57 completed jobs[S2]
it beeps but the cycle never beginsthe buttons do nothing but the display is lit
The second part people jump to, and on the source's own numbers it is the one that turns a no-start call into a decision: at $280-500 installed it is most of the way to a quarter of a new machine. The tell that separates it from the latch is electrical - a panel that lights up, responds to some buttons and never starts a cycle - and the source's blunt warning applies to a phone quote for it, because a price given without seeing the machine usually means a board has been guessed at.
S4 prices a control board at $280-500 installed and notes premium European brands run higher; no part-only figure is published. The job count on this cause is not that installed band: it is the 57 completed control-board jobs at a $369 median published in the publisher's own dishwasher repair cost table, which is why the count names S2 while the price band names S4
Repair or replace?
The verdict
Work down the blockers before pricing a part: the lock icon, sleep mode and delay start cost nothing, the latch is a service call, and a code that says water is in the base pan is a leak to fix rather than an electrical fault. After that the choice is the board, and past eight years old a board-level repair on a machine at the end of its ten-year line is where replacement starts to win - not because $280-500 is too much on its own, but because the next failure is already queued behind it. [S2]
Will not start jobs overall (S1 symptom-specific), from a second published dataset: $362 median — the source publishes no middle half for this row [S1] — n=86 completed jobs[S1]
Plus install and haul-away: $150–$250 — about $750–$1,250 installed all in [S2]
Planning life used for the decision: 10 years
One of the six causes on this page carries a published count, and it is a part-replacement row from the publisher's dishwasher repair cost table: the main control board, 57 jobs at a $369 median. The other five - control lock or delay start, a closed supply valve or tripped GFCI, the door latch safety switch, a base-pan safety lockout and the thermal fuse - have no count on any cited source, because they are checks or non-part faults rather than repairs with a table row. The cost table does publish a drain-pump row at 99 jobs, but that row is not one of this page's causes and is not bound to one here. The source's own limit applies to the table itself: cells with fewer than ten completed jobs are not published. Five of the six causes here carry no published denominator, which is stated rather than filled. Re-measured 2026-10-27: S1 was re-fetched live (HTTP 200, 83525 bytes) and its no-start row still reads a $362 median across 86 completed no-start repairs, published without a middle half, so that published row is now bound as the second_band above; S4 was re-fetched the same day (HTTP 200, 25547 bytes) and publishes installed bands for this symptom, no median with a denominator, so nothing is bound from it.
The break-even is not the part, it is the machine coming out from under a countertop: a $600-1,000 dishwasher plus $150-250 of installation and haul-away has to be beaten by a $280-500 repair plus the risk of a second fault. Under eight years old it is not close. Past ten, the same numbers point the other way.
S4's half-of-new-price rule and the ten-year line used across this site's dishwasher guides; a board-level repair at $280-500 against a $600-1,000 machine plus $150-250 to install and haul away is the comparison the decision actually turns on
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.
control lock, delay start or sleep mode left on [S1]
high likelihoodeasyno part neededabout 5 min
the buttons do nothing but the display is litthe start light blinks and nothing happens
The source's first fork: a dishwasher that will not start is usually being blocked, not broken, and this is the block people pay a visit to discover. A lit lock icon on the display means every button is disabled until the lock is released, and the panel deliberately does not tell you why. Sleep mode and delay start look the same from the outside. The source also passes on the detail its own manufacturer page buries: a lower dish rack fitted the wrong way round stops the door latching properly, and on many models a blinking start light after you press it means the control is waiting for the door rather than reporting a fault. Free.
closed water valve or a tripped GFCI on the branch circuit [S1]
high likelihoodeasyno part neededabout 10 min
no lights on the panel at allthe machine worked yesterday and now it is dead
The other free blocker, and the one behind a genuinely dark panel: a dishwasher on a ground-fault device that has tripped has no power at all, and a supply valve closed during plumbing work leaves a machine that lights up and then refuses to fill. The source puts settings and installation issues ahead of any failed component for exactly this reason. Check the outlet or the breaker for the machine, then the valve under the sink, before anything is ordered.
safety lockout after water reached the base pan [S1]
medium likelihoodeasyno part neededabout 30 min
the buttons do nothing but the display is litthe machine worked yesterday and now it is deadE15
The third blocker, and the one that is doing its job rather than failing: the machine senses water in the base pan, locks the cycle out and displays a code rather than pumping more water into a leak. Clearing it means finding and fixing the leak first - S3 documents the same E15 condition on Bosch machines, where the switch in the base is a float that lifts when water collects. Drying the base and restarting clears the code; it does not fix the cause, and the machine will lock out again on the next cycle if the leak is still there.
What each fix costs
Cause
Cost
Time
DIY?
control lock, delay start or sleep mode left on
no part needed
5 min
easy
closed water valve or a tripped GFCI on the branch circuit
no part needed
10 min
easy
safety lockout after water reached the base pan
no part needed
30 min
easy
door latch not closing the safety switch
$200–$320 installed
60 min
moderate
failed thermal fuse protecting the control board
$280–$500 installed
75 min
advanced
failed main control board
$280–$500 installed
90 min
pro
A technician visit starts with a diagnostic fee of $99 [S2]. Completed repairs run $280–$500 [S2].
Sources
[S2]Bozmanfix (medians from completed jobs, sample sizes published) (2026). dishwasher repair prices with the job count beside each row: control board replacement 57 jobs at a $369 median, drain pump 99 at $335, wash pump or circulation pump 118 at $367, door seal or gasket 29 at $292, heating element 24 at $355, water inlet valve 27 at $330, motor 18 at $362; cells with fewer than ten completed jobs are not published
[S1]Bozmanfix (medians from completed work orders; page published September 2026) (2026-09). the two-failure split (awake but refusing versus dark), the 86 no-start jobs out of 2,684 completed dishwasher repairs with a $362 median invoice, the $99 applied diagnostic and the 90-day warranty, the three blockers (latch switch, unknown setting, base-pan lockout), the control lock, sleep mode, delay start and closed-valve list, the reversed lower rack detail and the blinking start light, the door latch as a power switch, the thermal fuse and control board as the parts people jump to, and the branch-circuit and ground-fault check
[S4]FlexFul Appliance Repair (Chicagoland) (2026). 2026 installed price ranges used here (control board $280-500, door latch or interlock $200-320, sump gasket or lower door seal $250-400), the $75-110 diagnostic band with the warning about phone quotes, and the replacement maths ($600-1,000 for a mid-range built-in plus $150-250 installation and haul-away)
[S3]ServiceMag technician guide (2026). the E15 condition as a base-pan float switch that lifts when water collects, and the point that clearing the code without finding the leak leaves the same lockout waiting on the next cycle
Last verified: 2026-09-17. 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 $280–$500 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?
Work down the blockers before pricing a part: the lock icon, sleep mode and delay start cost nothing, the latch is a service call, and a code that says water is in the base pan is a leak to fix rather than an electrical fault. After that the choice is the board, and past eight years old a board-level repair on a machine at the end of its ten-year line is where replacement starts to win - not because $280-500 is too much on its own, but because the next failure is already queued behind it.
