- Coverage120 ZIP codes · 4 counties
- HoursOpen 24/7
Dishwasher — at a glance
- Typical time on site
- 1–2 hours
- Documented faults
- 75
- Platforms serviced
- 27
The machine · Dishwasher
What is inside a dishwasher, and what fails
- 01Water inlet valveA silted screen gives a short fill, and a short fill reads as poor washing rather than as a supply fault.
- 02Float switchHeld up by debris and the machine will not fill; stuck down and it overfills onto the floor.
- 03Upper spray armBlocked jets or an arm that no longer spins freely: the top rack comes out dirty, the bottom is fine.
- 04Lower spray armThe same fault on the bottom arm, usually with grit in the jets from a filter that was never cleaned.
- 05Filter & sumpWhere food actually collects. A packed filter starves the wash pump and then smells between cycles.
- 06Wash pump (circulation)Hums without pumping, or runs but cannot build pressure — dishes come out wet and unwashed.
- 07Drain pumpWater still in the tub at the end of the cycle, or a puddle appearing under the front of the machine.
- 08Heating elementOpen element: the cycle still runs, but nothing dries and the final rinse never reaches temperature.
- 09Detergent & rinse-aid dispenserA flap that does not release mid-cycle leaves detergent in the cup and film on everything.
- 10Door latch & strikeThe switch inside the latch is what tells the machine it may start; a worn latch reads as a dead machine.
- 11Door gasketHardened or displaced: steam escapes at the top of the door and water runs down the door face.
Diagnostic order
How we work a dishwasher
- Order of check
- water in, then water out, then the wash arms — poor cleaning is far more often a supply, spray-arm or filter problem than a pump or motor failure
- Most misread symptom
- condensation-drying models leaving plastics wet and dishes cool, which is designed behaviour on most European platforms rather than a fault
- Local factor
- the split between soft reservoir water across most of the market and harder well water in the outer towns, which decides whether filmed glassware is a supply problem or a machine problem — and which the dishwasher's own hardness setting should be matched to
Failure schedule · 75 documented
Common dishwasher faults we are called to
- 01
Not Cleaning Properly
Not Cleaning Properly covers dishes that leave a completed cycle still soiled, even though the machine filled, washed and drained without complaint. The fault sits somewhere in the wash circuit — water temperature, spray coverage, filtration or detergent chemistry — and more than one of those is often marginal at once, which is why single-part guesses rarely hold.
- Causes
- Supply water reaching the tub below wash temperature · Partly blocked spray-arm jets · A loaded filter and sump restricting circulation · Weak circulation pump output · Detergent unsuited to the local water hardness
- Repair
- We measure the temperature of the water actually reaching the tub during the main wash, then check spray coverage with the racks loaded as the household loads them. The filter, sump and coarse screen come out for inspection, and circulation pressure is judged against the spray pattern the pump can still produce. Detergent type and dosing are matched to the hardness of the supply, and a pump or diverter is replaced only when the readings condemn it.
- Urgency
- medium
- 02
Not Draining
Not Draining describes standing water left in the sump at the end of a cycle, or a machine that halts with the tub full. Filtration, the sanitising rinse and the next fill all depend on the tub emptying. Water left sitting under a warm tub turns foul quickly, so the fault does not stay a simple one for long.
- Causes
- A blocked filter, sump or coarse screen · A seized or obstructed drain pump impeller · A kinked or crushed drain hose · A missing high loop allowing back-siphoning · An unpunched disposer knockout plug
- Repair
- We start at the sump and work outward: filter and coarse screen off, impeller inspected by hand for glass, seeds and wire, then the pump checked for winding continuity and for actual flow. The hose run is traced for kinks and for the high loop that stops the tub siphoning back. Where the machine discharges into a disposer we confirm the knockout plug was removed at installation, a common finding on recently fitted units.
- Urgency
- high
- 03
Door Won't Close
Door Won't Close means the door will not travel far enough to latch, or springs back as the catch engages. Until it latches the machine will not fill, so this is a stoppage rather than a hazard. The obstruction is usually mechanical, and it sits in the racks more often than in the door itself.
- Causes
- A rack rolled forward of the door seal · A tall item leaning against the inner door panel · A distorted or lifted door gasket · A misaligned strike plate or catch · Hinge wear letting the door drop
- Repair
- We clear the opening first, because a rack that has rolled forward or a handle standing proud of the basket accounts for a large share of these calls. With the cavity clear we check gasket seating, strike alignment against the latch body, and hinge geometry for drop. Cabinet fixings and levelling feet are checked too, since a unit that has settled in its opening will bind the door against the worktop or an adjoining panel.
- Urgency
- medium
- 04
Making Unusual Noise
Making Unusual Noise covers sounds that are new for the machine rather than sounds it has always made. The wash and drain pumps, the spray arms and the water path each produce a characteristic noise, so the point in the cycle where the sound appears narrows the cause considerably before anything is dismantled.
- Causes
- Debris circulating in the pump housing · A worn wash pump bearing · A spray arm fouling a loaded item · A loose or unseated filter assembly · Water hammer in the supply pipework
- Repair
- We listen through a full cycle rather than a single stage, because a noise at fill points to the supply and valve while a noise during wash points to the pump or the arms. The filter and sump are opened to recover glass, stone fruit pits and cutlery, which are the usual sources of a rattle. Bearing noise is confirmed by turning the pump rotor by hand with the machine isolated, and the assembly is replaced where play is present.
- Urgency
- medium
- 05
Not Filling with Water
Not Filling with Water means a cycle starts but no water enters the tub. This entry approaches the fault from the control side: the inlet valve only opens when the machine energises it, and a valve that never receives its signal behaves exactly like a valve that has failed. Proving the signal separates the two.
- Causes
- A float switch held up by a stuck float · An open door interlock switch · A failed pressure or level switch · A break in the valve solenoid circuit · A board output that no longer energises the valve
- Repair
- We confirm whether the inlet valve is being energised before touching any plumbing, because that single measurement splits the fault in half. The door interlock, float and level switch are checked in the order the machine reads them, and the float chamber is lifted to see whether it moves freely. Where the signal is present and the valve stays shut the valve is at fault; where the signal is absent we trace the loss back through the harness to the board.
- Urgency
- high
- 06
Leaking Water
Leaking Water covers any escape of water from the machine during operation, wherever it starts. Because the unit sits under a worktop against flooring and cabinet ends, water reaches materials that do not dry, so the source matters more than the volume. A slow leak routinely does more damage than an obvious one.
- Causes
- A hardened or displaced door gasket · A weeping hose fitting at the inlet or drain · A failed tub-to-pump seal · A cracked sump or spray-arm feed tube · Overfoaming pushing water past the door seal
- Repair
- We run the machine with the plinth off and the cabinet side clear so the path of the water can be watched rather than guessed, since water tracks along the frame and appears far from its source. Fill, wash and drain stages are observed separately. Hose fittings are checked under pressure, the gasket is examined for flat spots and hardening, and the pump seal is assessed for salt tracking. Damp chipboard under the unit is reported, because it will not dry in place.
- Urgency
- high
- 07
Dishwasher Won't Start
Dishwasher Won't Start means the machine does nothing when a cycle is selected and the door is closed. The first question is whether it has power and a closed door circuit, because both are interlocks that silence the appliance completely rather than reporting a fault, and both sit outside the control electronics.
- Causes
- No supply at the switched spur or socket · A door latch not making its switch · A tripped thermal cut-out in the heater circuit · A failed line filter or suppressor · A control board with no working power rail
- Repair
- We confirm supply at the appliance itself rather than at the consumer unit, then test the door switch as the machine sees it, with the latch engaged. From there the check follows the power path inward through the suppressor to the board rail, and any thermal cut-out in the heating circuit is tested cold. A machine that is dead with supply present and the door circuit proved is a board or harness fault, and we establish which before committing to a part.
- Urgency
- medium
- 08
Leaving Residue on Dishes
Leaving Residue on Dishes describes a gritty or filmy deposit found on items after a completed cycle, distinct from food that was never lifted at all. Residue is redeposited material: soil the filter failed to retain, or detergent that never fully dissolved and rinsed away before the tub emptied.
- Causes
- A saturated filter redepositing soil · Detergent released before the main wash · Rinse water below the temperature detergent needs · An overdosed detergent for a soft supply · A drain that does not clear between fills
- Repair
- We look at what the machine does between fills, because residue is soil that was washed off and then put back. The filter and sump are inspected for a layer that has stopped retaining fines, and the drain is watched to confirm the tub empties fully before the rinse. Dispenser timing is checked so detergent is not dumped into the pre-wash, and dosing is matched to the local supply, which is harder in parts of the area than packaging assumes.
- Urgency
- low
- 09
Not Cleaning Dishes Well
Not Cleaning Dishes Well describes results that have declined gradually rather than failed outright: most items are acceptable and a few need rewashing. Slow decline points at wear and accumulation — scale on the heater, a filter that no longer passes freely, jets that have opened out — rather than at a single failed component.
- Causes
- Scale narrowing the spray-arm jets · A filter mesh that has become partly blinded · A worn impeller reducing wash pressure · A heater scaled enough to slow temperature rise · A rising soil load with fewer items pre-rinsed
- Repair
- We judge the machine against how it behaves once the wash circuit is descaled and the arms are cleared, since gradual decline is usually deposit rather than breakage. Jets are cleared individually and checked for the widened orifices that drop pressure across a whole arm. The heater is inspected for scale that slows the rise to wash temperature, and impeller wear is assessed from the spray pattern the pump still produces with a clean circuit.
- Urgency
- medium
- 10
Not Filling with Water
Not Filling with Water is taken here from the supply side: the machine calls for water and the water does not arrive. Everything between the stop tap and the tub can restrict or stop the fill, and the inlet screen is the most common find because it collects everything the pipework sheds.
- Causes
- A partly closed or seized stop tap · A blinded inlet screen at the valve · A kinked or crushed fill hose · A valve diaphragm stuck shut by scale · Supply pressure below the valve's opening threshold
- Repair
- We isolate the machine and check flow at the end of the fill hose, which proves or clears the entire supply in a single step. The inlet screen is then removed and examined for the grit and scale that blind it. Where flow is good and the valve is energised, the valve itself is condemned, since a scaled diaphragm will not lift reliably even with a sound solenoid. Standing pressure is noted where the property runs on a shared or low-pressure supply.
- Urgency
- high
- 11
Overfilling with Water
Overfilling with Water means the tub takes on more water than the cycle calls for and eventually spills past the door seal onto the floor. The machine carries redundant level protection, so overfilling means both the primary control and its backup have stopped working, which is why it is treated as urgent.
- Causes
- An inlet valve leaking past its seat · A float trapped in the lowered position · A blocked pressure chamber or sensing tube · A failed level or pressure switch · A control board holding the valve energised
- Repair
- We isolate the water supply before anything else, because a valve leaking past its seat will keep filling with the machine switched off at the panel. The float is freed and tested for travel, the pressure chamber and its tube are cleared of the sludge that gives a false low reading, and the level switch is verified against actual water height. A valve that passes with no drive signal is replaced, and the machine stays out of use until level control is proved.
- Urgency
- critical
- 12
Leaking from Door
Leaking from Door describes water escaping around the door perimeter during the wash, appearing down the front of the machine and along the plinth. The seal, the door's alignment and what is happening inside the tub all contribute, and foaming is a frequent cause that no new gasket will ever fix.
- Causes
- A hardened or split door gasket · A door sitting proud at one corner · Excess foam from an unsuitable detergent · A spray arm directing water at the seal · A blocked vent forcing water forward
- Repair
- We examine the gasket along its whole length for flat spots, splits and the hardening that stops it recovering, then check the door's fit against the tub face at each corner with the latch engaged. If seal and alignment are sound we look inside, since foam from hand detergent or a blocked vent will push water past a perfect gasket. A tall item deflecting the upper arm into the door face produces the same symptom and costs nothing to correct.
- Urgency
- high
Also documented · 63
- Leaking from Bottom
- Soap Dispenser Not Opening
- Rinse Aid Not Dispensing
- Dishes Not Drying Properly
- Heating Element Failure
- Spray Arms Clogged
- Spray Arm Not Spinning
- Wash Pump Failure
- Drain Pump Failure
- Mineral Scale Buildup
- White Spots on Dishes
- Cloudy Glassware
- Dishwasher Smells Bad
- Drain Filter Clogged
- Door Latch Failure
- Control Board Failure
- Cycles Running Too Long
- Stopping Mid-Cycle
- Error Code Displayed
- Grinding Noise from Pump
- Humming but Not Starting Cycle
- Water on Floor Under Dishwasher
- Rust Inside Dishwasher Tub
- Rack Tines Rusting
- Top Rack Not Cleaning
- Bottom Rack Not Cleaning
- Touchpad Not Responding
- Door Spring Broken
- Fills and Immediately Drains
- Running Constantly / Cycle Won't End
- Detergent Tablet Not Dissolving
- White Deposits on Plastic Containers
- Dishwasher Interior Rusting
- Cloudy Film Inside Tub
- Glassware Permanently Etched
- FH / Water Inlet Error (Whirlpool/KitchenAid)
- Leak Detection System Tripped
- Air Gap Clogged
- Garbage Disposal Connection Problem
- Hard Food Disposer Failed
- Starting Intermittently
- Exterior Too Hot to Touch
- Steam Escaping from Door
- Built-In Water Softener Not Working
- Food Particles on Dishes After Washing
- Salt Indicator Light On
- Child Lock Activated and Stuck
- Poor Results After Switching Detergent
- Not Using Hot Water at All
- Three-in-One Dishwasher Tablet Not Working Properly
- Knocking During Wash Cycle
- High-Temperature Wash Not Working
- Delay Start Feature Not Working
- Burning Smell from Dishwasher
- Control Panel Getting Wet
- Spray Arm Spin Test Failed
- Bottom Spray Arm Missing or Broken
- Third Rack Not Cleaning (Third-Rack Models)
- Not Filling with Enough Water
- Sanitize Indicator Not Illuminating
- Spray Arm Hitting a Dish During Cycle
- Steam Wash Option Not Working
- Cycle Selector Knob Broken
Platforms · 27
Dishwasher platforms we service
Only the 27 manufacturers that actually build dishwashers — we do not advertise combinations that do not exist.
Specification
Dishwasher repair — the numbers
- 1–2 hours
- Typical time on site
- 27
- Brands serviced
- 120
- ZIP codes covered
Wear and safety parts
On a dishwasher: Not Cleaning Properly · Not Draining · Door Won't Close · Making Unusual Noise
Motors, pumps and moving assemblies
On a dishwasher: Not Cleaning Properly · Not Draining · Making Unusual Noise · Not Filling with Water
Control boards and electronics
On a dishwasher: Dishwasher Won't Start · Overfilling with Water · Heating Element Failure · Control Board Failure
By town
Dishwasher repair by town
- Boston
- Revere & Winthrop
- Chelsea
- Cambridge
- Somerville
- Newton
- Waltham
- Belmont & Arlington
- Lexington & Winchester
- Reading & Wakefield
- Watertown
- Medford & Malden
- Melrose & Everett
- Stoneham & Wilmington
- North Reading
- Weston
- Quincy
- Milton & Dedham
- Needham & Wellesley
- Brookline
- Braintree & Randolph
- Canton & Westwood
- Norwood & Dover
- Lynn
- Saugus & Swampscott
- Marblehead & Salem
- Beverly & Danvers
- Peabody
- Gloucester & Rockport
- Ipswich & Hamilton
- Essex & Manchester
- Wenham & Rowley
- Boxford & Middleton
- Lynnfield
- Nahant
Guides
From the technicians
Questions
Dishwasher repair — common questions
Can't see yours? Just ask us.
Which appliance brands do you repair in Greater Boston?
All forty-eight brands we list, including Samsung, LG, Whirlpool, GE, Maytag, Bosch, KitchenAid, Frigidaire, Electrolux, Kenmore and Amana on the mass-market side, and Sub-Zero, Wolf, Viking, Thermador, Miele, Gaggenau, Dacor and Fisher & Paykel on the built-in and professional side. We also service commercial equipment from Hoshizaki, Manitowoc, Scotsman, True, Turbo Air, Hobart and Vulcan, which matters in Greater Boston because light-commercial kitchens sit on the same routes as the residential work.
Do you work in apartments and condominiums in Greater Boston?
Yes. A large share of Greater Boston housing is condominium, two- and three-family or rental, and any building with a management company generally wants a certificate of insurance on file and the service elevator booked in advance. Our coordinator arranges that before the technician is dispatched, so tell us the building when you call (857) 491-4488. We carry compact 24-inch and stacked-laundry parts because converted units are where most of that equipment lives.
Dishwasher · Greater Boston
Dishwasher repair across Greater Boston
The dishwasher symptom most often misread
Across every brand we service, the dishwasher fault we see misinterpreted most is condensation-drying models leaving plastics wet and dishes cool, which is designed behaviour on most European platforms rather than a fault. It matters because the wrong reading leads to the wrong part, and on a dishwasher the wrong part is frequently the most expensive one in the machine.
Dishwasher brands we repair
We service dishwashers from all 27 manufacturers that build them — Samsung, LG, Whirlpool, GE, Maytag, Bosch, KitchenAid, Frigidaire, Electrolux, Kenmore and Amana across the mass market, and Sub-Zero, Wolf, Viking, Thermador, Miele, Gaggenau, Dacor, JennAir and Fisher & Paykel on the built-in and professional side, alongside commercial equipment where the category calls for it.
The calendar shapes our Greater Boston workload more than most people expect. The first heatwave brings a wave of refrigeration calls; the first hard freeze brings no-heat dryers, split supply lines and garage refrigerators that have quietly stopped calling for cooling; late November brings ovens that will not hold a set temperature.
The useful consequence is that a refrigerator making an unfamiliar noise in April is a much easier appointment to get than the same refrigerator in July, and considerably cheaper to fix, because a condenser fan replaced early is a straightforward job while the compressor it was protecting is not.
The freezer in the garage is where Greater Boston food loss usually happens, and it rarely announces itself. There is no fault code, no alarm, and no obvious symptom until something has defrosted and refrozen.
If a unit is going to live in unconditioned space, an independent thermometer with a remote alarm is worth more than any service plan — it tells you about a problem while the contents are still salvageable. Where the appliance itself is at fault we will fix it, but we would rather you knew that ambient temperature is frequently the whole explanation.
Service request
Or call (857) 491-4488.
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