675806 Whirlpool Dishwasher Pump Impeller âand Seal â¤Kit is a service kit â¤containing the rotating impeller and âtheâ sealing elements used to restore the hydraulicâ and watertight performance of a dishwasher pump assembly.â The impeller is â˘the⤠primary fluid-moving component-a molded rotor⢠that translates motor torque⢠into flow and pressure-whileâ the seals (typically âmechanical âseals,O-rings or lip seals) prevent âwash and sump water from migrating into the motor and bearing interfaces.
Insideâ the⣠appliance, this kit is installed in the pump housing locatedâ in the sump area and interfaces⢠directly with the â¤electricâ motor, pump shaft or â¤coupling, âand the inlet/outlet passages or check valves. The impeller determines flow rate⣠and pressure for recirculation or drainage âŁdepending on pumpâ designand its clearance to the⢠housing affects hydraulic efficiency;⣠the seals maintain system integrity by blocking liquid ingress and by protecting bearings and electrical components âfrom contamination. Materials, fit tolerances âand exposure to hot, detergent-laden water influence wear modes such âas erosion, cracking, seal hardening and loss of dimensional accuracy.
In the following article you⣠will find a technical âoverview of the kit’s â˘function and typical applications, guidance on model andâ compatibility checks, common failure â˘symptoms (reduced flow, unusual noise,â leakage, motor⣠overheating), diagnostic âand troubleshooting steps to isolate impeller or seal-related faultsand practicalâ replacement considerations⣠such asâ disassembly âsequence, seal orientation, inspection criteria, reassembly tips â˘and post-repair leak and performance checks. âThe information is aimed at â˘technicians, âengineers and informed appliance owners who â¤need to assess, diagnose and replaceâ pump internals while maintaining correct hydraulic and seal integrity. â
table of⢠Contents
- Function⣠and Role of â¤the â˘Pump Impeller and Seal Assembly in Dishwasherâ Fluid Management
- How the 675806â Whirlpool Dishwasher Pump Impeller âŁand â¤Seal⢠Kitâ Operates â¤Withinâ the Wash and Drainâ Systems
- Common Failure Symptoms and Wear â˘Patterns of the⣠Pump Impeller and âSealâ Kit
- Compatibility and Supported Whirlpool Dishwasher â˘Models for the Pump Impeller and Seal Kit
- Replacement Considerations, Required Toolsand Installation Procedure for the Pump âImpellerâ and âSeal âŁKit
- Troubleshooting and Diagnostic âŁProcedures: Leak Detection, Noise Analysis, âand Flow Testing
- Q&A
- Future Outlook
Function and â˘Roleâ of the Pump Impeller and â˘Seal Assembly â˘in Dishwasher Fluid Management
The pump impellerâ converts rotational energy from the dishwasher motor into directed âŁfluid flow, while the sealing elements protectâ the motor cavity and bearings from the wash sump. the⤠675806 âWhirlpool Dishwasher â¤Pump Impeller⢠and Seal Kit supplies a âŁreplacement impeller sized to âthe âoriginal⣠pump volute and matched sealing âcomponents designed to withstand typical âdishwasher conditions-high temperature,detergent chemistry,and particulate-laden water. In operation, âthe impeller geometry âdetermines flow rate and head; any wear, cavitationor deformation reduces spray pressure and can alter cycle performance. The seal assembly â¤prevents pressurized water from⤠migrating â˘along the pump shaft intoâ the motor compartment, limiting bearing degradation and electrical hazards caused â¤by moisture ingress.
Technically, correct âinstallation requires axial alignment of the impeller â˘on the shaft, proper seating of the sealing faces, âand inspection âof âmating surfaces for grooves or âŁcorrosion that would compromise the â¤seal. Typical field evidence of a failing impeller⤠or seal includes reduced spray âŁintensity,abnormal ânoise,visible leaks beneath the dishwasher,or motor overheating under load. Routineâ replacement using a matched kit restores original clearances and materials compatibility, minimizing the need for repeated service and simplifyingâ diagnosis when troubleshooting pump-related faults.
- Reduced spray performance or long cycle times
- Visible water pooling or drips under the unit
- Grinding or hydrodynamic noise fromâ the pump area
- Motor runs âŁbut does⢠not develop expected flow/pressure
| Item | Description |
|---|---|
| Impeller | Thermoplastic or composite⢠rotor that generates flow; must match volute⤠geometry âfor proper head and flow. |
| Mechanical seal | Two mating faces (stationary and rotating) âthat prevent shaft leakage; materials selected for abrasion and chemical resistance. |
| Oâringsâ / â˘gaskets | Elastomeric components â¤that âmaintain static seals betweenâ housings and adapt to thermal expansion. |
How the 675806 Whirlpool Dishwasher Pump Impeller â˘and Seal Kit Operatesâ Within the Wash and Drain Systems
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit âcontains the wet-end components responsible⣠for converting â¤motor torque into controlled water movement and for protecting the drive motor from water⤠ingress. The âŁimpellerâ uses centrifugal action⤠toâ generate âthe flow and pressure required to feed the â˘spray⤠arms during the wash cycle, while theâ seal assembly (an elastomeric shaft seal and âmating seat) prevents water âŁfrom⢠reaching⤠the motor bearings and electrical components.â In â˘practice,â worn impeller vanes reduce spray pressure and cleaningâ performance,⢠and a degraded â¤seal allows leakage into the âsump or onto the motor, causing noise, â¤overheating,⢠or electrical faults; technicians commonly replace⤠this kit when vane erosion, cracked impeller hubsor compressed/crumbled âseals are observed during inspection.
Within the dishwasher’s hydraulic layout the impeller and seal work together to maintain hydraulic efficiency⤠and toâ isolate wet and dry components across both wash and drain operations. Many Whirlpool â¤designs place âŁthe wash impeller in a recirculation path that feeds spray âarms while aâ separateâ drain port or â¤dedicated drainâ impeller in the same â¤housing routes âŁwastewater⤠out;â the seal prevents unintended⢠cross-flow and keeps the motor compartment dry.Typical service diagnostics âinclude reduced spray velocity, visible leaks at the pump flange, unusual grinding or cavitation âŁnoiseor motor⤠thermal events;⢠addressing these symptoms by replacing the impeller âand âseal restores expected flow characteristics and â˘prevents progressive âmotor damage.
- Common symptoms: lowâ spray pressure,⣠water leaks at base, loud motorâ noise, intermittent draining.
- Practical check: inspect vane profile, impeller âŁfit on shaftand seal⣠lip âcondition beforeâ reinstalling.
| Item | Description |
|---|---|
| Impeller | Centrifugal thermoplastic⤠vane assembly that pressurizes recirculation flow for⢠spray arms. |
| Seal | Elastomeric⣠shaft lip seal and mating seat that prevents water ingress⣠into the⤠motor housing. |
Common Failure Symptomsâ and Wear Patterns of the Pump Impeller and Seal Kit
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit replaces the rotating impeller and the elastomeric seals â¤that isolate the pump housing⣠from theâ motor and gearbox. the impeller â¤is responsible for⣠generating the hydraulic flow that feeds spray arms and the⣠sump recirculation path; the seal âŁkit prevents water intrusion into â˘the motor cavity and âthe bearings. Common âwear mechanisms include abrasive erosion⢠of impeller vanes from food particles or broken glass, cavitation pitting from air entrainmentand âchemical or thermal degradation of seal lips that leads toâ hardening, shrinkageor cracking.â This kit⢠is intended to match OEMâ fitâ and material âŁinterfaces for compatible Whirlpool pump housings, but technicians should âverify pump âhousing geometry and shaft coupling before installation to ensure correct â¤alignment and⤠torque⤠on the retaining fasteners.
Symptoms and wear patterns provide diagnostic clues: reduced spray âpressure or intermittent flow usually correlates with impeller erosion or â˘blockedâ vanes; â˘continuous dripsâ at the base, oil or coolant contamination âof the motor cavity, âand visible âelastomer⤠splitting indicateâ seal âfailure. listen for high-frequency whining, grindingor increased vibrationâ that signals â˘impeller â¤imbalance or bentâ hub; these conditions accelerate bearing wear and â˘can mask as electrical motor faults. Perform a⤠visual inspection by removing the⣠pump housing to â˘check âfor chipped or thinned vane profiles, measure â¤axial play on the impeller shaftand examine seal faces forâ glazing or extrusion.â Replace the impeller and seals when hydraulic performance â¤is⤠measurablyâ reduced, âwhen sealing surfaces â˘are compromisedor when shaft play âexceeds acceptable limits for the specificâ pump model.
- Reduced spray arm rotation or⣠weak â˘wash cycles – impeller erosion or blockage.
- leakage at the base âor motor â˘cavity – seal lip failure or âcompression⣠set.
- Vibration, noiseor⢠motor overheating â- impellerâ imbalance or damaged hub.
- Visible nicks, cracksorâ missing vane material – mechanical damage requiringâ replacement.
| Item | Description |
|---|---|
| Impeller wear | Thinned or⤠broken âŁvanes reduce flow and cause cavitation, leading to noise and⣠reduced âcleaning performance. |
| Seal deterioration | Hardened, crackedor extruded seal lips permit water ingress and contaminate motor bearings â˘and windings. |
| Imbalance / axial play | Excessive shaft movement or asymmetric mass distribution increases vibration and accelerates surrounding component wear. |
Compatibility and Supported Whirlpool Dishwasher Models for the Pump Impeller and Sealâ Kit
The 675806 whirlpool dishwasher Pump Impeller and Seal kit replaces the rotatingâ impeller and the â¤elastomericâ seal thatâ isolate the circulation⤠pump motor⢠fromâ the dishwasher âsump.The impeller restores theâ designed flow rate and pressurization of the spray arms, while âthe seal prevents sump⣠leakage and protects the motor bearings from water ingress. Technically,â compatibility depends on matching the impeller â˘hub geometry, the motor shaftâ drive type (splined or keyed),â and the â˘sealâ bore/shaft diameter; âŁphysical fit and hydraulic profile must align to preserve original performance andâ avoid cavitation or⣠shaft wobble.
Compatibility isâ determined by the⣠pump⢠assembly⢠design rather than model year âŁalone, soâ technicians should verify interchangeability âŁbefore installation. Useful âchecks include matching the pump housing casting and âmotor coupling, âconfirming the shaft diameter and engagement â˘depth,⣠and cross-referencing the dishwasher’s parts diagram or service âmanual forâ pump assembly part numbers.Practical examples of verification steps are listed below to help decide weather the kit is a correct replacement for a given⣠machine.
- Inspect the existing pump âfor a matching housing âshape and mounting points.
- Measure motor shaft diameter and⤠note theâ drive âspline/key profile.
- Compareâ impeller outerâ diameter and inlet/outlet port alignment to the original.
- Cross-reference OEM part numbers⤠or âservice diagrams to confirm interchange.
| Item | Description |
|---|---|
| Critical fit points | Impeller hub engagement, motorâ shaft profile, âŁseal â¤bore diameter |
| Performance factors | Impeller diameter/profile affects flow⣠rate and spray arm âpressure |
Replacement Considerations,â Required Toolsand Installation âProcedure for the Pump Impeller and Seal Kit
The 675806 Whirlpool Dishwasher Pump Impellerâ andâ Seal Kit replaces the rotatingâ impeller and the⣠sealing elements that maintain the pump’s hydraulic integrity.The impeller converts motor torque into water flow for⤠wash⤠and rinse circulation; the seal kit prevents wash water from leaking intoâ the motor cavity âand pump bearings. âŁFunctionally, a worn âimpeller âreduces flow and pressure, producing poor âŁcleaning or long cycle drain times,â while a â¤degraded seal allows water intrusion that accelerates âbearing â¤wear and electrical faults.Confirm compatibility⢠by matching the pumpâ housing interface, rotorâ shaft diameter and spline âprofile on your âWhirlpool âunit⢠to theâ kit; this kit is intended⣠for pumps that use a removable plasticâ impeller and elastomeric lip/O-ring⢠sealsâ ratherâ than âŁintegral-forged⤠assemblies.
- Basic tools: Phillips and⣠flat-blade screwdrivers, Torx driver set (common⢠sizes T15-T25)
- Socket or nut driver set (common sizes⣠7/16″ / 10 mm),â needle-nose pliers
- Trim or utility knife, shop rag, cleaning âŁsolvent (isopropyl alcohol)
- Small âpickâ or seal removal tool, silicone-based appliance â¤grease (non-petroleum)
- Multimeter âfor verifying power-off and motor continuity
| Item | Description |
|---|---|
| Impeller | Thermoplastic rotary element that mounts to the motor rotor; restores designed âŁflow and pressure. |
| Seal | Elastomeric lip âseal and O-ring⣠set for axial sealing between pump housing and⣠motor âshaft; compatible with hot detergent solutions. |
| Materials | Impeller: engineered nylon/thermoplastic.Seals: NBR/EPDM-class elastomer depending on kit âbatch; resistant to surfactants⢠and hot water. |
Procedure highlights: first ensure the dishwasher is isolated from mains and water supplies and that the capacitors cannot hold charge; use a multimeter to confirm de-energized circuits. Remove⢠the toe kick and lower access âpanel, drain âresidual water, then unfasten⣠the pump housing and â˘disconnectâ its electrical connectors⤠while noting orientation and connector positions. Inspect the motor shaft âfor end play and scoring; excessiveâ axial or radial play âindicates the motorâ or bearing housing must be replaced rather than only replacing the impeller and seals. Clean mating surfaces, remove old seals with⣠a⢠small pickand âlightly lubricate the new âO-ring with silicone-based grease to aid seating; press âthe lip seal squarely into its âbore and slide the impeller⢠onto the rotor with correct âindex alignment. Reassemble, torque fasteners snugly â(hand-tight plus quarter turn â˘where applicable), restore power and run a short wash âcycle âŁwhileâ observing âforâ leaks,⤠abnormal noiseor insufficient flow; recurring leakage or grinding noise after replacement â˘signals deeper bearing or motor rotor damage requiring further disassembly or part⤠replacement.
Troubleshooting and â˘diagnostic âProcedures: Leak detection, â¤Noise Analysisand â˘Flow Testing
The 675806 âŁWhirlpool Dishwasher Pump Impeller⤠and Seal Kit contains theâ rotating impeller andâ the â¤radial shaft seal that isolate the motor from⤠the wash sump âŁand generate â˘the hydraulic flow through spray âŁarms. Functionally, the impeller âconverts motor torque toâ fluid movement while the seal prevents wash water from migrating along âthe motor shaftâ into the âŁmotor âcavity. âCompatibility is typically with â¤Whirlpool pump housings using theâ same shaft diameterâ and impeller geometry; when⤠diagnosing leaks or poor flow, verify the pump housing and motor⣠shaft condition âŁbefore installing the kit because aâ scored shaft â˘or cracked housing can defeat a new seal or damage a replacement impellerâ shortly after service. A common field example: a dishmachine showing low⣠spray pressure and visible oil or coolant at the âmotorâ base frequently⢠enough indicates⣠seal failure combined with impeller wear or clogging rather than⣠an electrical fault.
- Inspect⤠visually for water trails, rustor oil at the motor-housing interface to localize a leak.
- Spinâ the impeller by â¤hand and check for axial/lateral play that indicates bearing or⤠shaft wear.
- Listen for noise types: grinding (foreign object/bearing),â whining (cavitation/worn impeller)or rattle (loose â¤mounting).
- Perform a flow test by measuring cycle fill/drain times and compare motor âcurrent âto the nameplate â¤or service manual âvalues; elevated current⢠with low flow suggests hydraulic restriction or⢠damaged impeller.
During noise analysis, separate hydraulic noise from mechanical noise by running the âpump dry brieflyâ (if âsafe for the âmodel)⤠and âthen under load:⢠a dry ârun that⤠still produces grinding points to bearing/motor issues, âwhile âŁnoise only under load usually implicates impeller damage, foreign debrisor cavitationâ from air ingress. Forâ leak detection, a food-safe dye introduced âinto the sump can reveal â¤theâ leak path; backpressureâ or a blocked drain can forceâ water past a compromised seal even ifâ the âexternal inspection appears normal. Use the table below as â¤a â˘rapid reference to correlate symptoms with likely causes and the practical checksâ a⤠technician should⢠perform before deciding to replace âthe impeller and seal or the entire pump assembly.
| Item | Description |
|---|---|
| Visible wetness at motor base | Radial seal failure or cracked housing⣠– check shaft surface and housing integrity. |
| low spray pressure | Worn or clogged impeller,â inlet restrictionor internal bypass due toâ damaged seal. |
| Grinding noise | Foreign object in impeller, motor bearing failure – â˘remove and⤠inspect impeller âand motor bearings. |
| High motor current, low flow | Hydraulic blockage, fused impelleror binding pump – check for debris and measure âŁcurrent against nameplate. |
Q&A
Whatâ isâ the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit⣠and how do I confirm it fitsâ my dishwasher?
The 675806 kit is a â¤replacement impeller plus â˘sealing components for the circulation/pump assembly used in many Whirlpool-family âŁdishwashers (Whirlpool, Maytag, Kenmore, etc.). Compatibility varies by⤠model and production date, so⣠always confirm fit by checking your dishwasher model/serial tag⣠and cross-referencing theâ part number on âthe manufacturer’s parts âŁdiagram or a reputable parts supplier before buying.
Whatâ symptoms indicate the⣠impeller â¤or mechanical seal has failed?
Common signs include poor wash performance (little or âŁno water circulation),unusually loud or grinding âŁpump noise,motor running⤠but no water movement,water⤠leaking from the base of the dishwasher,or the motor overheating/tripping. Some âelectronic control â¤error codes may also point to â˘circulation or âŁleak âproblems, but visual inspection â¤is usually necessaryâ to confirm a failed impellerâ or âseal.
Can I replace â˘the impeller âandâ seal⤠myself,â and how arduous is the job?
Yes, a competent DIYer or appliance technician can replaceâ this kit. The job âis moderate difficulty: you must disconnect power and water,â removeâ the lower access panel (andâ possibly the dishwasher from under the counter), remove the sump/pump housing, swapâ the impeller and seal, then reassemble andâ test. â˘Typical time is about 30-90 â˘minutes depending onâ access and experience. âIf you’re uncomfortable working âwith electrical/water connections or disassembling the sump, âŁhire a qualified technician.
What tools and materials do I need to installâ the âkit?
typical tools: screwdrivers (Phillips/flat), socket or nut driver set, âŁpliers âŁor channel locks, âŁTorx âdriver setâ if ârequired by your model, a small pick forâ O-rings, towels or⢠a bucket for water,â and workâ gloves. âOptional but recommended: a multimeter to verify power is off⣠and a small amount â˘of dishwasher-safe silicone⢠or clean water to lubricate seals for installation (do not use petroleum greases). Always⢠turn off⣠power at the breaker and shut off⣠the water âsupplyâ before starting.
What exactly âis included âin⢠the 675806 âkit?
Most 675806 âŁkits include the pump impeller âŁand the mechanical shaft⤠sealâ and associated O-ring/gaskets or retaining hardwareâ needed to rebuild the pump. Exact contents can⤠vary âŁby supplier, so check the product⣠description or packaging to confirm the parts included with your purchase.
How can I tell if⢠the leak is coming âfrom the pump seal versus another source?
Inspect the âarea under âthe dishwasher and the pump housing while the unit â˘runs â(power on, but avoid touching âŁliveâ terminals). â¤If water is âŁvisibly seeping from the pump housing seam or around the âmotor shaft area, the pump seal is highlyâ likely âfailing. If the âsump and pump are âdry, check inlet and drain hoses, hose clamps, door seal,⢠floatâ switch areaand the âtub for cracks. Isolate the pump⢠by removing hoses and observing⤠whether â˘the water source persists to narrow âthe source.
Should âI replaceâ the âimpellerâ andâ seal together or⣠only the part âthat’s â¤damaged?
If you’re âaccessing the pump, it’s good practice to⤠replace both the impeller â˘and â˘the mechanical seal at the same time. The mechanical seal is a wear item andâ can âbe damaged during⤠removal; installing⤠a ânew seal â˘with a ânew impeller reduces the chance of â˘a âsecond failure and ârepeat disassembly.
What can I do to extend the⣠life of the impeller and seal and avoid repeat problems?
Preventive⢠measures: keep the filter andâ sump free⢠ofâ foodâ debris and foreign objects that can damage the impeller; don’t overload the⣠dishwasher; use recommended detergents and ârinse aid; periodically inspect hoses and â˘clamps for wear;⤠and âŁaddress any mineral buildup (hard water) with appropriate care. If you ânotice unusual noises or reduced performance,â inspect the â¤sump early⣠to prevent seal damage from running the pump dry or with âdebrisâ trapped.
Futureâ Outlook
Theâ 675806 Whirlpool Dishwasher Pump Impeller â¤and sealâ Kit plays a central role in maintaining dishwasher function by ensuring reliable water circulation and preventing leaks at theâ pump assembly.â Aâ properly functioning â¤impeller supports effective cleaning performance and wash-cycleâ efficiency, while intact seals protect the motor and surrounding components â¤from water damage.As âa âtargeted repair kit, it helps ârestore original equipment performance and â¤can extend theâ service life âof the appliance when installed correctly.
accurate diagnosis of pump⤠andâ seal issues is essential before replacement to confirm that⣠symptoms such as unusualâ noise,⢠reduced âwater flow, âŁpoor cleaning results, âor visible leakage are attributable to the impeller â¤or seals rather⣠than other âcomponents.â When replacement is indicated, usingâ the correct 675806 Whirlpool Dishwasher Pump Impeller andâ Seal kit and following the manufacturer’sâ installation guidance-or engaging a qualifiedâ service technician-reduces the risk⤠of recurring problems and collateralâ damage. Timely, âappropriately executed repairs helpâ maintain⢠safety, efficiencyand âlongâterm reliability of the⢠dishwasher.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
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