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dishwasher: a dishwasher whose cycle runs but never takes water, so the load comes out dry
A dishwasher that will not fill is usually being refused water rather than failing at it: the supply is shut, a hose is kinked, a float has lifted, or a connector has worked loose. The part comes last, and the visit is what the invoice is made of. Most of the bill on a dishwasher is access labour rather than parts — the diagnostic alone runs $99 [S1], and the cheapest item on the list needs no part at all [S2]. The complaint — a dishwasher whose cycle runs but never takes water, so the load comes out dry — narrows to a handful of causes, and whether the machine has to come apart separates them. It arrives in these words: the dishwasher runs but there is no water in it, the dishes come out dry and the detergent is still in the cup, the cycle stops a few minutes in and the tub is empty, the machine hums and then nothing happens, with a fill error on the panel or it worked yesterday and now it will not take water. Start with a water inlet valve that no longer opens — $330 installed, about 60 minutes [S1].
What the fault looks like
Fig. DISHWASHER - WONT FILL
What the F8E4 code on a dishwasher means
F8E4 — a fill and float fault on Whirlpool machines: the manufacturer's own list for it is the water supply connections, the rubber washer seating in the fitting, the routing of the fill hose and the float switch connector, all supply-side and installation rather than a failed board [S2].
high likelihoodadvanced$330 installedabout 60 minn=27 completed jobs[S1]
the dishwasher runs but there is no water in itthe dishes come out dry and the detergent is still in the cupF8E4
The part the second dataset also points at, and the one to reach only after the supply has been confirmed open. The first source prices it as its will-not-fill row: a $330 median across 27 completed jobs. The second source, working from a different and larger slice of the same company's records, prices the same valve at $340 on the row it labels fill faults and the F8E4 family - cycle never begins - and files it under supply-side causes. Two datasets, two published figures, neither converted into the other and neither added to anything: they are the same part in two samples, which is exactly the shape this site keeps side by side. Expect the labour rather than the part to dominate: the unit comes out from under the counter and the valve sits behind the kick plate.
the valve is published as a completed job - part, labour and the service call together - so the installed figure below is the median invoice and no part-only price is claimed. The source's own warning is that comparing a parts-store price to a repair quote compares two different things.
a float switch that has tripped, or a float connector that is not seated [S2]
medium likelihoodmoderatenot pricedabout 45 min
the cycle stops a few minutes in and the tub is emptythe machine hums and then nothing happens, with a fill error on the panelF8E4
The safety side of a machine that will not admit water, and the reason a fill fault is worth reading rather than resetting. The manufacturer's list for the fill and float code ends at the float switch connector, which has to be pushed home until its locking tab is visible - a connector that has worked loose looks like an electronic fault and costs nothing to reseat. The other version of the same condition is the flood-protection lockout: water collects in the base pan under the tub, a float switch lifts and the machine responds by running the drain pump and refusing a wash cycle at all. The source's own comment is that this is the machine being right, and that clearing the water without finding the leak buys a few cycles. That leak is a separate fault with its own guide.
no part-only price is published for the float or its connector, and on most machines the fix is a connector pushed home rather than a component, so no figure is claimed. If the float has tripped because water is standing in the base pan, the cost belongs to whatever is leaking, not to the switch.
medium likelihoodpro$369 installedabout 90 minn=57 completed jobs[S1]
the machine hums and then nothing happens, with a fill error on the panelthe cycle stops a few minutes in and the tub is empty
The last suspect rather than the first, and the dearest standard repair on the machine: a $369 median across 57 completed jobs, which the first source calls the most expensive standard dishwasher repair and attributes to the part rather than the labour. The second source prices the same board at $387 on its own slice and warns that the expensive mistake on a dishwasher is not choosing the wrong price but paying twice, because the first attempt replaced a board that was never the problem. Everything on the fill path - the supply, the hose, the valve, the float and its connector - is cheaper and testable before this one is opened, which is why it sits last here.
the board is published as a completed job - part, labour and the service call together - so the installed figure below is the median invoice; the source's point is that the part rather than the labour is what makes this the dearest standard repair on the machine.
Repair or replace?
Rule out the water before you touch a part, because three of the four causes here are on the supply side and the fourth is the dearest thing on the machine. Confirm the shutoff under the sink is fully open - the source quotes the manufacturer stating that if water is not detected the cycle will not start - and look at the fill hose for a kink and at the fitting for a washer that is not seated. Read the panel and write down the code: a fill and float code sends you to the supply connections and the float switch connector, which has to be pushed home until its locking tab is visible, and a flood-protection lockout means water is standing in the base pan and the machine is refusing to run rather than pumping more in - that is a leak to find, not a switch to reset. If the fill path is clean and the machine still does not take water, the valve is the part at a $330 median across 27 completed jobs, with the board at $369 across 57 as the last suspect rather than the first. If the machine is under five years old, every one of these is worth doing; the source's own line is that a $335 drain pump against an $800 replacement is not a close call, and the same arithmetic applies to a fill valve. [S1]
Two slices of the same publisher's dishwasher records stand behind this page and each figure names its own. The anchor is the will-not-fill row of the 2,114-job cost slice: a water inlet valve at a $330 median across 27 completed jobs, inside a slice whose overall median is $328 with the middle half at $272-397. The second slice is the 2,684-job set behind the not-starting guide, where the same publisher reports 86 no-start jobs at a $362 median and prices the same valve at $340 on its fill-fault row, the door latch and switch assembly at $312, the drain pump at $350 and the main control board at $387. The two valve figures are the same part in two samples of the same company's work; they are quoted side by side and never averaged, and no figure from one slice is added to a figure from the other. The replacement band is the FlexFul figure already used on this site's other dishwasher pages.
A fill fault is one of the cheapest decisions on a dishwasher, which is why it is also one of the easiest to get wrong by replacing the wrong thing. The valve sits at a $330 median across 27 completed jobs and the board at $369 across 57, against a mid-range replacement the source puts at $500-900 before installation - so on any machine under ten years the repair wins, and on the dearest version of this symptom it still wins. The source's own framing of the whole machine is the useful caution: a dishwasher repair is mostly the visit, the diagnosis and the pull-and-reseat labour, so the difference between the cheap cause and the expensive one is far smaller than the difference between diagnosing once and replacing two parts. The source is explicit that the expensive mistake is paying twice because the first attempt replaced a board that was never the problem.
the same FlexFul band and ten-year planning life this site's other dishwasher pages use, and consistent with the source's own arithmetic, which compares a repair on the machine against a mid-range replacement at $500-900 before installation
the supply stop under the sink is closed, or the fill hose is kinked or its washer is not seated [S2]
high likelihoodeasyno part neededabout 10 min
it worked yesterday and now it will not take waterthe dishwasher runs but there is no water in itF8E4
The source is blunt about this one and quotes the manufacturer stating it plainly: if water is not detected, the cycle will not start. The shutoff under the sink gets closed during plumbing work, a filter change or a vacation and nobody remembers opening it again. The same manufacturer's list for the fill and float code sends a technician to the supply connections, the rubber washer seating inside the fitting and the routing of the fill hose before any part is considered, and the source notes that a large share of those calls are on machines installed within the last few weeks. Free, and worth ruling out before anything is pulled out from under the counter.
What each fix costs
Cause
Cost
Time
DIY?
the supply stop under the sink is closed, or the fill hose is kinked or its washer is not seated
no part needed
10 min
easy
a float switch that has tripped, or a float connector that is not seated
not priced
45 min
moderate
a water inlet valve that no longer opens
$330 installed
60 min
advanced
a control board that never commands the fill
$369 installed
90 min
pro
A technician visit starts with a diagnostic fee of $99 [S1]. Completed repairs run $330 [S1].
Sources
[S1]Bozmanfix (completed dishwasher jobs) (2026-09). the 2,114 completed dishwasher repairs; the $328 median with the middle half at $272-397; the will-not-fill row (water inlet valve) at a $330 median across 27 completed jobs; the drain pump at $335 across 99; the heating element at $355 across 24; the wash and circulation pump at $367 across 118; the control board at $369 across 57, described as the most expensive standard dishwasher repair and blamed on the part rather than the labour; the door seal at $292 across 29; the eight-brand spread from $310 to $375; the $99 diagnostic credited against the repair; the statement that a mid-range replacement runs $500-900 before installation and that most of the 2,114 jobs were on machines five to ten years old, where anything in the $290-370 band is still repair territory; and the warning that a part price and a repair quote compare two different things
[S2]Bozmanfix (completed dishwasher jobs; manufacturer settings and code lists quoted from Whirlpool and Bosch support pages) (2026-09). the 2,684 completed dishwasher repairs behind the no-start guide and the 86 jobs logged as will not start at a $362 median; per-part prices on that slice - door latch and switch assembly $312, water inlet valve $340 on the fill-fault row, drain pump $350, main control board $387; the manufacturer's settings list for a machine that will not fill (a closed water supply valve, with the manufacturer stating that if water is not detected the cycle will not start); the fill-and-float code and its manufacturer list - the water supply connections, the rubber washer seating in the fitting, the routing of the fill hose and the float switch connector pushed home until its locking tab is visible, described as all supply-side and installation rather than a failed board; the flood-protection lockout (water in the base pan lifting a float switch, the machine running the drain pump and refusing a wash cycle) and the note that clearing the water without finding the leak buys a few cycles; the ground-fault requirement under Article 422.5(A)(7) of the 2020 National Electrical Code and the advice to reset once and stop; the observation that almost everything that stops a dishwasher from starting lands between $310 and $390, so the expensive mistake is paying twice; and the caution that separating the remaining suspects means metering live terminals with the machine pulled out
[S3]FlexFul Appliance Repair (Chicagoland) (2026). the replacement band used on this site's dishwasher pages ($600-1,000) and the ten-year planning life, both consistent with the other dishwasher pages here
Last verified: 2026-09-19. 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 $330 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?
Rule out the water before you touch a part, because three of the four causes here are on the supply side and the fourth is the dearest thing on the machine. Confirm the shutoff under the sink is fully open - the source quotes the manufacturer stating that if water is not detected the cycle will not start - and look at the fill hose for a kink and at the fitting for a washer that is not seated. Read the panel and write down the code: a fill and float code sends you to the supply connections and the float switch connector, which has to be pushed home until its locking tab is visible, and a flood-protection lockout means water is standing in the base pan and the machine is refusing to run rather than pumping more in - that is a leak to find, not a switch to reset. If the fill path is clean and the machine still does not take water, the valve is the part at a $330 median across 27 completed jobs, with the board at $369 across 57 as the last suspect rather than the first. If the machine is under five years old, every one of these is worth doing; the source's own line is that a $335 drain pump against an $800 replacement is not a close call, and the same arithmetic applies to a fill valve.
