675806 Whirlpool Dishwasher Pump Impeller andâ Seal Kit is a replacement assembly consisting of a molded impeller âand the complementary sealing elements intended for use in a dishwasher âpump/sump assembly.⤠The⤠kit contains the⣠rotating hydraulic⤠element that transmits âtorque from the pump motor to move wash or drain water and theâ elastomeric seals âand gaskets that isolate the wet chamber from the motor and bearing surfaces. These components⢠are typically made to âfit a specific pump housing and mating shaft geometry â¤and are intended âŁto restore⤠the original hydraulic and sealing interfaces of the pump.
Inside the â¤appliance, âthe impeller converts rotary motion from the pump motor into fluid flow, creating the pressure and flow required for spray arm circulation or â¤evacuation through theâ drain path, depending on⣠the pump configuration. The seals-shaft seals, o-rings and any face seals included in the⣠kit-prevent pressurizedâ or⣠standing water from â¤contacting motor â˘windings, bearings⢠and electrical connections.⣠The⢠impeller and seal set therefore interacts directly with the motor shaft,pump housing,sump,spray arms,and downstream plumbing and can affect hydraulicâ performance,thermal stress on the motor,and the integrity of the⤠appliance enclosure⢠where leaks would manifest.
This article will describe the function of theâ 675806 impeller and seal components,outline the models and pump housings with whichâ the kit is compatible,and list common failure âsymptoms such as reduced â˘circulation,cavitation noise,visible leaks at the sump,or motor overheating. It will also present diagnostic checks a â˘technician can perform toâ distinguish hydraulic or sealing failures âŁfrom motor or electricalâ faultsand discuss practicalâ replacement considerations including part verification, inspection of âmating surfaces, seal lubrication and seatingand reassembly precautions to restore âŁreliable operation.
Table of Contents
- Functional Role âand Hydraulic Performance⣠of the⤠Dishwasher Pumpâ Impeller and Seal
- How the 675806 whirlpool âŁDishwasher Pump Impeller and Seal Kit Operates Within the Circulation and Drain⤠Systems
- Common Failure âSymptoms, diagnostic Indicatorsand RootâCause Analysis for Impeller and Seal Degradation
- Model Compatibility, Replacement⣠Considerations, Installation Procedureandâ PostâReplacement Troubleshooting
- Q&A
- Wrapping âUp
Functional Role and Hydraulic âPerformance â˘of the Dishwasher Pump Impeller and Seal
the 675806 Whirlpool Dishwasher â¤Pump Impeller and Seal Kit supplies two tightly related components that convert motor torque into usable hydraulic energy and keep the motor compartment âdry. The impeller is a centrifugal element whose⣠vane geometry, diameter âand tip clearance â¤determine⤠the pump’s flow (Q)⤠and developed head⣠(H) for a â¤given shaft speed; the mechanical sealâ isolates the âwet chamber from âthe motor shaft⤠and prevents leakage past the rotating âŁinterface. The kit’s âŁcomponentsâ are manufactured to the⣠pump⤠housing tolerances typical âof Whirlpool circulation pumps,⤠so correct part orientation, seating of the âseal and undamaged impeller vanes are required âto restore original âhydraulic âbehavior after service.
Hydraulic performance depends on impeller condition andâ seal integrity: âworn or chipped vanes reduce volumetricâ efficiency and increase recirculation losses at âŁtheâ impeller eye, lowering spray-arm⣠flowâ and altering âspray patterns, while a âfailed seal allows leakage that bothâ reduces net available flow and risks motor failure.Cavitation⢠orâ air entrainment âat the pumpâ inlet will exacerbateâ noise and erosion of the impeller. In practical âŁterms, replacing the impeller and â˘seal ofen resolves symptoms such âas diminished spray coverage â¤or⣠water accumulationâ at the base; technicians should inspect for debris in the⤠pump inlet, verify impeller concentricity and tip clearanceand confirm seal face alignment during reassembly to recover expected⢠performance.
- Common symptoms: reduced spray pressure, noisy pump operation, water in the dishwasher âŁbase, visible impeller damage or âloose rotating assembly.
- Installation checks: correct⣠seal orientation,clean sealing surfaces,and secure⣠impeller â¤fit on the shaftâ to prevent âaxial movement.
| Item | Description |
|---|---|
| Impeller | Thermoplastic centrifugal element; vane geometry controls flow âvs. head tradeoff. |
| Seal | Rotating⢠face and stationary seat â¤that prevent wet-chamber leakage; material and⢠seating affect longevity. |
| Failure⢠modes | Vane erosion/chipping,tip clearance⣠increase,seal face wear,particulate abrasionâ or chemical degradation. |
| Compatibility | Designed to match Whirlpool pump âŁhousings and shaft dimensions;⣠verify part number and housing fit before installation. |
How â¤the 675806â Whirlpool Dishwasher pump Impeller and Seal Kit Operates Within⤠the Circulation and Drain Systems
The 675806 Whirlpool Dishwasher Pump Impeller â˘and seal Kit is the rotating hydraulic element and its mechanical sealing⤠interface that sit inside the lower pump/sump âassembly and mediate both the wash circulation and the drain function.The â˘impellerâ mounts on âthe âmotor shaft and â¤converts â˘motor torqueâ into axial/centrifugal flow that feeds the spray arms during â¤the wash cycle; â¤the âseal âŁ(often⢠a lip-type or ceramic-faced mechanical seal depending âonâ model) isolates theâ motor bearings from pumped water to prevent contaminationâ and bearing failure. In Whirlpool designs that use a single lower pumpâ forâ both circulationâ and drain,⢠the impeller provides flow to the spray manifold âduring wash and,⤠when âŁthe drain pathway or â¤diverter valve is opened,â redirects that same pumped flow or âa discrete drain channel âto evacuate water from the tub. Impeller âgeometry (blade angle, diameter)â and correct seal orientation directly affect flow rate, pressureand leakâ prevention, âso âthe⤠kit must match⣠the original pump⤠housing and shaft configuration to restore designed performance.
Operational⣠behavior and practical compatibility considerations determine whether replacing this kit resolves faults: worn or chipped impeller vanes⤠reduce flow and cleaning performance; a hardened, flattenedor cracked seal allows water to leak into the âmotor cavity causing noise, ârapid bearing wearor electrical â¤issues. Technicians should confirm â¤model and motor-shaft interface⢠(shaft diameter, flat/keyway) and inspect the sump â˘for debris before âinstallation; cleaning the housing âand ensuring the â˘seal seats on a smooth counterface avoids âearly⣠failure. For example, a dishwasher that runs but leaves standing water and shows reduced â˘spray pressure âcommonly benefits from replacing âtheâ impeller âportion,⢠whereas âvisible oil or âcorrosion inside â˘the âmotor area indicates the seal has failed and ârequires the full kit.⢠During reassembly, align the impeller and press âthe seal toâ its seating depth without rotating abrasive contact to preserve the âpolished sealing surfaces.
- Common⤠symptoms: reduced spray pressure, partial or no drain, motor⤠humming with low flow, visible leaks at pump base.
- installation checks: verifyâ model number⢠and shaft type, clean sump, inspect seatingâ surfacesorient⣠the⤠seal lip⤠correctly.
- Performance⣠factors:â impeller damage, clogged inlet screensand â˘incorrect seal seating affect âboth circulation and drain âfunctions.
Common Failure Symptoms, â¤Diagnostic⢠Indicatorsandâ RootâCause Analysis for Impeller and Seal â¤Degradation
The pump impeller creates the hydraulic⣠flow necesary for dishwasher⣠circulation while the mechanical seal prevents wash water â˘from reaching the motor and bearings. The 675806 âŁWhirlpool Dishwasher Pump Impeller andâ Seal Kit replaces the rotating impeller and the stationary/rotating seal âŁfaces to restore designed clearances and hydrodynamicâ performance; correct geometry and elastomer hardness directly affect flow rate, âpressureand leak resistance.In practical â¤service, compatibility with â¤the pump housing and shaftâ spline is critical: â¤a â˘correctly â¤matched impeller maintains âvane profile⢠and axial clearance, â˘while⤠the sealâ assembly must match⤠the shaft diameter and â˘seat material to resist detergent chemistry and temperature cycles common in Whirlpool machines.
- Leaking: Visible water at the motor⣠end or oil-like residue on âŁthe motor housingâ indicates â¤seal face wear, axial runoutor âimproper assembly.
- Reduced flow / âŁpoor wash results: âŁEroded or chipped vanes, clogged passagesor⤠an impeller incorrectly seated will reduce circulated volume and increase motor âŁcurrent.
- Noise âor vibration: Scoring on the â˘impeller boss, foreign debrisâ trapped â¤against the housingor bearing degradation manifests â˘as high-frequency⤠noise and increased shaft play.
- Motor âoverload orâ thermalâ shutdown: Cavitation âfrom⤠incorrect clearances,heavy âŁdebris load,or a partially seized impellerâ raises⤠torque and motor current.
Root-cause analysis should start with a visual inspection of seal faces for scoring,⤠discoloration,â or missing elastomerand â˘a manual check for axial and radial play of the impeller on the shaft. Electrical checks such as motor current under â˘no-load⣠and loaded run conditions help distinguish hydraulic restriction⢠from â˘motor faults:⣠an elevated current with normal shaft rotation points to hydraulic binding or foreign objects, whereas open/short conditions indicate motor⤠or wiring issues. Practical examples includeâ detergent-induced elastomer swelling producing intermittent leaksand grit embedded⢠in â˘the sealâ faces causingâ gradual⤠face scoring; replacing both the impeller and⤠seal as a⢠matched set and verifying shaft/seat alignment typically resolves symptoms that originate fromâ mechanical mismatch or progressive wear.
| Item | Description |
|---|---|
| Leak detected atâ motor end | Seal face â˘wear, axial runoutor damaged âelastomer – inspect faces and shaft forâ scoring. |
| Low circulation / high current | Impeller vane erosion, cloggingor⢠cavitation due to â¤wrongâ clearanceâ – âinspect vanes and housing clearances. |
| Vibration⣠/ noise | Imbalance from âchipped impeller,⤠foreign debrisorâ bearing wear – check for play and debris in pump chamber. |
Model Compatibility, Replacement Considerations, Installation Procedureand⤠PostâReplacement Troubleshooting
The â 675806 Whirlpool dishwasher Pump Impeller and⢠seal Kit âis âa service assembly that replaces⣠the rotating impeller â˘and the dynamic/static sealing surfaces inside â¤the dishwasher circulation pump. Theâ impeller transfers âŁtorque from the âmotor âcoupling intoâ pressurized wash flow, while the seal set prevents⣠water ingress âŁinto the⣠motor cavity⢠and bearings; mismatches in shaft diameter,â splineâ countor pump-volute âgeometry will prevent proper installation or cause⢠premature failure. Before ordering or installing the kit, verify compatibility byâ comparing the pump housing face, shaft interfaceand volute orientation on the⢠machine to the parts being supplied – a correct âmechanical âfit and matched axial clearances are required for reliable hydraulic performance and seal⣠longevity.
During replacement, clean the pump bore âŁand mating surfaces, inspect theâ motor coupling and bearing for⣠playand replace any worn âcomponents that would load the new⤠impeller or seal unevenly;⢠lubricate â¤O-rings with a non-petroleum silicone lubricant⣠and confirm the impeller key engages the coupling without axial preload. Afterâ reassembly,â perform a âŁshort âno-load run and a⤠full-cycle wash⤠while observingâ for leaks, abnormal vibration, reduced flowor cavitation⣠noise; âthese are the primary indicators of installation or compatibility issues andâ guide âcorrective action â¤such⤠as reseating the seal, verifying impeller clearanceor replacing an incompatible coupling.
- post-replacementâ checks: leak âŁat seal joint, loud bearing/vibration, low sprayâ pressureor intermittent seal weeping⤠during spin-up.
- Quick installation tips: verify spline âcount,seat O-rings squarely,and avoid overcompressing the seal stack.
| Item | Description |
|---|---|
| Impeller diameter | Determines flow rate and must match⣠volute throat⤠dimensions for designed head/flow. |
| Shaft interface | Spline count andâ diameter; mismatch causesâ slippageâ or â¤breakage. |
| Seal âtype | Dynamicâ lip/carbon-ceramic or âŁelastomeric element; material â¤choice âaffects wear and chemical compatibility. |
Q&A
What âŁis the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit and what does it do?
The â¤675806 kit⢠contains the rotating â¤impeller⢠and the sealing components used on the âŁdishwasher wash/pump assembly. The impeller moves water through the spray arms and circulation system; âthe sealâ prevents wash water from leaking âinto the motor bearing area. Replacing these parts restores⢠proper water flow âand prevents⢠leaks when they are worn or damaged.
How⤠do I know if the impeller or seal has failed?
Common symptoms are loud or unusual pump/motor ânoise, reduced âŁwater spray orâ poor cleaning, visible⤠water leaking from the bottom of the dishwasherand the pump running⤠but not âcirculating water.Inspecting the sump/pump housing for broken or chipped impeller bladesor for degraded/cracked seals and O-rings, will confirm failure.
Which dishwasher models is part 675806 compatible with?
675806 is â¤an OEM Whirlpool pump â¤impeller and seal kit used on a â¤range â¤of âWhirlpool-family dishwashers (and some⤠Kenmore/Maytag⢠models made âby Whirlpool).Compatibility varies by model âand production date, so⢠always âverify â˘fit byâ checking your dishwasher’s model⣠number âagainst the parts diagram âon the manufacturer’s parts site orâ with a parts dealer before buying.
How difficult is the replacement and what tools do I need?
Replacement difficulty is moderate. Typical tools needed: Phillips and flat screwdrivers, nut driver set orâ socket set, pliers, possibly Torx driversand⤠aâ towel or small container⢠for âresidual water. Expect 30-90 minutes depending⤠on access and⣠experience. Basic mechanical skills and comfort removing âtheâ dishwasher âkickplate, disconnecting power/waterand handling small⤠parts are required.
Are thereâ any safety⢠or preparatory steps I should take before replacing âthe kit?
Yes. Disconnect âelectrical power to the âdishwasher (turn off circuit breaker âŁor unplug), shut off theâ house water supply âto the dishwasherand remove excess waterâ from the tub and sump⢠area.⢠Take photos or note the orientation of âparts before⤠removal so â˘you âŁcan reassemble correctly. Always work in a âŁdry âarea and follow manufacturer safety guidance.
any tips for âinstalling the impeller and seal⤠correctly?
Clean the pump housing⢠andâ seating surfaces of debris before â˘installation. Note and reinstall seals in âthe exact orientation they came outâ (if âunsure, photograph beforehand). âLightly lubricate O-rings or âŁrubber seals with a small amount of food-grade silicone-based dishwasher-safe â¤grease to help them â¤seat-do not use petroleum-basedâ grease. Make sure the â¤impeller is fully seated on its shaft and that the sealâ is flush to prevent leaks. Do ânot overtighten fasteners-snug is âsufficient.
What can cause an impeller or seal to fail prematurely?
Common causes include hard debris (broken glass, grit) chipping the impeller,â chemical damage âor swelling of â˘rubber seals from improper chemicals, dry-running the pump,â and⣠long-term wear. Cracked or âwarped pump housings will âalso compromise a new seal,⤠so inspect âŁthe sump housing â˘and replace the entire âŁpump assembly if the housing⣠is damaged.
Should I buy the â¤OEM 675806 kitâ or will aftermarket parts work?
OEM 675806 âis recommended because it is made to the original specifications and âŁtypically offers a more⣠reliable fit and seal. Some aftermarket â˘kits can be â¤adequate and⣠lower cost, but quality varies. If using non-OEM parts, verify dimensions⢠and material qualityand buy from reputable âŁsellers âwith good⤠return policies. If your pump housing is worn or âcracked, consider replacing the entire pump/motor assembly rather than onyl the impeller/seal.
Wrappingâ Up
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit plays a focused but critical role in maintaining âdishwasher performance. The impeller â¤drives water circulation for effective cleaning âŁwhile the âseals âprevent leaks andâ protect the pump âŁmotor from water intrusion. When functioning correctly,these components contribute⢠to proper drainage,quiet operation and sustained cleaning efficiency,and when they fail they are a common source of reduced wash âquality,noise â˘and water leaks.
Accurate diagnosis is essential âbefore replacing âthe impeller⣠and seals. Similar symptoms can result âfrom clogged filters, âblocked âspray arms,⢠pump â¤motor failure or issues elsewhere in the circulation and drainage systems, so verifying that the impeller and seals are the root cause avoids unnecessary repairs. âWhen replacement is indicated, using the correct kit⤠and following⤠manufacturer â˘guidance or qualified technician procedures helpsâ ensure a reliable repair,⤠preserves appliance longevity andâ reduces the risk of subsequent damage.
the 675806 impeller and sealâ kit is a âcost-effective component-level⣠solution⤠for addressing specific âperformance and leakage issues in compatible Whirlpool dishwashers. Timely,properly executed âdiagnosis and replacement maintain operationalâ efficiency,limit downtime and helpâ protect the appliance and surrounding⣠area from water-related âdamage.
Professional Appliance Service
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