675806 whirlpool Dishwasher⣠Pump Impeller and Seal Kit is a replacement assembly designed forâ the pump section ofâ a⣠household dishwasher; it typically includes the impeller, shaft sealing componentsand associated gaskets or âbushings necessary to restore hydraulic performance and prevent shaftâ leakage. As a mechanical consumable, the kitâ addresses wear on the rotating â˘impeller vanesâ and the seal surfaces that isolate the wet sump from the electric⣠motor and bearing surfaces, restoring designed â¤flow characteristics and maintaining â˘a watertight motor interface.
Within the appliance, the impeller⢠converts âmotor torque into fluid flow, circulating⢠wash water from the sump â¤through spray⢠armsâ and the filtration path, while the seal(s) prevent water ingress into the motor and bearing area and retain lubricant where required.The pump âŁassembly thus interacts directly with the wash pump motor, the sump and filter assembly, check valves and drain passagesand indirectly with the control system that governs pump speed and timing;⤠any degradation of the impeller âor seals affects flow rate, pressureand leak integrity, with⣠potential downstream impacts âon wash performance and motor life.
In this article readers can expect a technical review⤠of the kit’s function and typical fitment, guidance on recognizing common failure symptoms âŁ(reduced flow, abnormal noise, shaft wobbleor visible leaks), systematic troubleshooting steps to isolate impeller versus seal âfailureand practical replacement considerations such as correct part orientation, sealing surface planning, torqueing fastenersand post-replacement testing. âThe information is aimed at technicians, engineersand appliance owners who need to evaluate â˘compatibility, inspectâ for wearand perform aâ controlled, serviceable replacement of the pump components.
Table of Contents
- Functional Role of the Dishwasher âPump Impeller and Seal Assembly in Water Circulation and drainage
- How the 675806 âWhirlpool Dishwasher pump Impeller and â˘Seal Kit Operates âWithin the Pump âŁHousing and Motor⢠Assembly
- Typical Failure Modes and Observable Symptomsâ of Impeller orâ Seal Degradation
- Replacement Considerations, Sealâ selectionand StepâbyâStep⢠Installation for Service Technicians
- Q&A
- To Wrap It Up
Functional Role of âthe â¤Dishwasher Pump impellerâ and Seal Assembly in Water Circulation and Drainage
The pump impeller and seal assembly work together to convert motor torque⤠into controlled water movement and to maintain a watertight barrier between the wet chamber and â˘the motor housing. The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit replaces the rotating impeller and the mechanical seal that prevents wash and â¤drain water from entering⢠the motor cavity. The â˘impeller’s vane geometry âŁand diameter determine flow rate and head pressure during both wash and drain cycles; the seal assembly-typically consisting of a fixed ceramic seat and a ârotating elastomer-encased face-maintains fluid separation while operating against shaft rotation âŁand pressure differentials. in practice, matchingâ the impeller profile and seal materials to âthe pump housing and shaft tolerances ensures the kit âŁre-establishesâ original hydraulic performance and leak⢠resistance on compatible Whirlpool models.
When diagnosing âcirculation or âdrainage problems, inspect both the impeller and the âshaft/seal interface: a worn or damaged impeller reduces spray pressureâ and increases motor load, while a compromised seal allows water into the motor pocket and can cause electrical â˘or bearing failure.During â˘replacement use a clean mating surface, verify⣠the shaft is free of grooves or heavy corrosionand ensure the seal is oriented correctly so â˘the polished faces meet âflush. After installation, run a short wash and a drain cycle while âchecking for leaks, abnormal vibration, âor elevated motor âŁcurrent; these practical checks confirm the impeller and seal restore âthe intended hydraulic behavior and protect the drive components.
- Primary functions: generate flow (impeller)â and prevent leakage into the motor â(seal).
- Common symptoms of failure: poor spray coverage, standing water after drain, water in motor cavity, increased motor ânoise or current.
- Installation checks: â˘shaft condition, â¤seal face cleanliness, correct orientationand âŁhousing â¤fitment.
| Item | Description |
|---|---|
| Impeller | Transmits torque to fluid; vane shape and diameter set âflow/head⤠for wash and âdrain cycles. |
| Seal | Mechanical interface that isolates the wet cavity from the motor, âconsisting of mating faces and⤠an elastomeric âsupport. |
| Compatibility | Kit must match pump housing bore,shaft diameter,and motor âcouplingâ to restore original⣠performance. |
| Typical failure mode | Abrasion or breakage â˘of impeller â¤vanesand wear⤠or contamination⢠of seal faces leading to leakage and reduced hydraulic efficiency. |
How the 675806 whirlpool Dishwasher Pump Impeller and Seal Kit Operates Within the Pump Housing and motor âAssembly
The 675806 Whirlpool Dishwasher Pump impeller and Seal⤠Kit fits into the pump housing directly onâ the motor drive shaft and functions as the hydraulic heart of the wash system: the molded impeller converts motor torque into a high-velocity water jet directed through the outlet port and sprayâ arms, while theâ seal components prevent wash water from entering the motor â˘and bearing âŁcavities. Within⢠the housing⢠the impeller⢠is located⤠promptly adjacent to the mechanical/shaft seal assembly; as⣠the impeller spins it creates a pressure⤠differential that forces water through the pump volute and âŁinto the dishwasher spray circuit. Compatibility depends on matching the pump housing geometry, shaft diameter/keyingand volute â¤sealing surfaces, so technicians should confirm model cross-reference or service drawings before assuming interchangeability across Whirlpool-family pumps.
Operation places â˘both radial and axial loads on the impeller and subjects the seal facesâ to continuous pressure and particulate exposure; typical âfailure modes include blade erosion or cracking that reduces flow and cavitation, â˘and seal face âwear or hard-particle scoring that leadsâ to leaks into theâ motor cavity. During service, proper seating and orientation of theâ shaft seal,â correct impeller indexing on the drive shaftand intact housing O-rings are required âto restore factory performance. After replacement,â standard validation includes a static âleak check at the seal interface and âŁa quiet, steady-run verificationâ (listen for cavitation or grinding and confirm expected spray pressure) before â˘returning the appliance to service.
- Installation/inspection checklist: verify shaft diameter and keyway, confirm seal orientation and seating, inspect housing O-ring and snap ring âretention, test for leaks during⤠a short run cycle.
Typical Failure Modes and Observable Symptoms of Impeller or Seal Degradation
The hydrodynamic impeller transforms motor torque into the pump’s volumetricâ flow while the shaft seal prevents⢠wash water from⣠entering the motor housing; degradation of either element degrades pump performance. The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit provides replacement components that restore the original impeller geometry and the sealing surfaces,addressing common mechanical wear patterns such as blade erosion,cracking,and dimensional loss on the impeller,as well as âhardening,extrusion,or abrasionâ of elastomeric seals and â¤rotary faces. Mechanical damage or loss of impeller clearance⢠increases recirculation⣠and cavitation, while seal deterioration allows pressurized water to bypass the intended barrier and contact the motor end, which can accelerate corrosion and bearing failure.
Observable symptoms map closely to the specific âŁfailure modeâ and are useful for quickly triaging a â¤failed pump assembly.technicians will commonly â˘seeâ decreased discharge flow and poor drain performance when impeller blades are worn or partiallyâ sheared, audible grinding or â¤high-frequency cavitation âŁnoise from imbalanced or eroded bladesand visible under-cabinet leakage or moisture on the motor housing when seals are compromised. Practical inspection steps include checking impeller blade integrity â˘andâ concentricity, feeling for excessive axial or âradial shaft playand examining seal faces for scoring or hardening; replacing âthe impeller and seal together restores hydraulic clearances and sealing âreliability and reduces âŁthe ârisk of immediate re-failure caused by mismatched wear.
- Reduced flow / poor drain – impeller erosion, chipped bladesor clogging.
- Noise⢠or vibration – imbalance from damagedâ impeller or foreign debris.
- External leakage – compressed,cracked,or worn â˘seal elements.
- Intermittent pump⢠operation or motor overheating -⢠increased hydraulic load from cavitationâ or binding.
| item | Description |
|---|---|
| Impeller wear | Loss of blade profile or breakage resulting in lower â¤flow, cavitation noise, âand⣠reduced âŁcleaning/drain performance. |
| seal failure | Elastomer or face damage permitting â˘water ingress to the motor end, producing leaks, bearing contaminationand premature motor â¤failure. |
Replacement Considerations, Seal Selectionand StepâbyâStep Installation for⤠Serviceâ Technicians
675806 whirlpool Dishwasher Pump impeller and Seal Kit â supplies the impeller and the mating shaft/seal components that restore hydraulic performance and prevent water ingress into the motor/drive âŁassembly. In service, âthe impeller geometry determines âflow and head characteristics while â¤the shaft seal prevents pressurized water from entering bearing cavities; â˘both must⢠match the pump housing tolerances and be made from materials compatible with detergent, high temperature rinse cyclesand periodic thermal cycling. Technicians should confirm the replacement impeller matches the original vane profile and âthat the âseal elastomer and mating ceramic or metal⢠surfaces⣠are free of corrosion or pitting that would⣠compromise a fluid-tight⣠seal.
Replacement requires âŁassessment of⣠mechanical wear, correct seal selectionand controlled installation to avoid premature failure. inspect the âmotor shaft for⤠scoring,verify no axial or radial play in the âpump bearings,and clean sealing âsurfaces before fitting the new components. Use a âthin film of compatible silicone grease âŁon O-rings⢠to aid seating but avoid lubricants that degrade the elastomer; when⣠pressing the impellerâ and seal into position, ensure concentric alignmentâ and that retaining clips or fasteners engage fully. After reassembly, perform a static⤠leak test followed by a full-cycle run to confirm noise, flowand âabsenceâ of leaks; symptoms âthat⢠indicate improper⤠installation â¤include reduced âflow, audible rubbing or vibrationand water at the base of the unit.
- power and water off; drain sump and remove⤠lower rack and access panel.
- Remove spray arms and pump housing cover to expose impeller and seal.
- Detach impeller retaining device, extract impellerand inspect shaftâ and â¤bore.
- Remove old seal carefully, clean surfaces, lubricate new seal Oâringand press into seat squarely.
- Install impeller⤠with correct orientation, secure retaining device, reassemble,⣠torque to service manualand run leak/performance tests.
| Item | Description |
|---|---|
| Impeller fit | Must match original vane profile and seat concentric to the pump bore; check for axial play orâ interference. |
| Seal material | Elastomer selected⣠for detergent and heat âŁexposure; verify compatibility with dishwasher chemicalsâ and rinse temperatures. |
| Post-install⢠checks | Static leak test,audible check for rubbing,and verification ofâ expected circulation and absence of motor overheating. |
Q&A
What is the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit andâ what parts does it include?
The â675806 kit is a repair package for the dishwasher circulation pump.â It typically contains the pumpâ impeller (the plastic/blade piece⤠that moves water),⤠the mechanical seal or shaft seal componentsand one or more Oârings or gaskets needed to reseal âthe pump housing. Exact contents can vary by supplier, so verifyâ the included parts against the seller’s description or the manufacturer’s parts diagram before⢠purchasing.
How âdo I know if this kit is the correct⣠part âŁfor my dishwasher?
Confirm âcompatibility by checking your dishwasher model numberâ (usually âon âthe door frame) and crossâreferencing âŁit with the part number in the manufacturer’s parts list or an authorized parts retailer. 675806 is used in a range of Whirlpoolâfamily⣠appliances (Whirlpool, Maytag, KitchenAid, Kenmore), but modelâspecificâ verification is required â¤because pump designs differ between models and years.
What symptoms indicate I need to replace⢠the âpump impeller and seal?
Common symptoms include: water leaking from the bottom of the dishwasher âŁ(pooling on the floor), reduced or no spray/wash pressure (poor cleaning), loud grinding⤠or unusual pump noiseand motor overheating or tripping. A broken impeller will reduce circulation; a failed seal usually causes â˘external leakage under the unit.
Can I replace the impeller and seal myselfand what safety â¤steps should Iâ take?
Yes, â¤many competent DIYers and â˘technicians can replace this kit. Required safety steps: disconnect power at⣠the circuit breaker, turn off the dishwasher water supplyand place towels/buckets to catch water.Remove the lower rack and access the sump/pump (from inside the tub or by pulling the dishwasher out and working from beneath). If you’re not comfortable working with appliances or cannot safely isolate power⤠and water, hire a technician.
What tools⤠and approximate time are needed to âŁreplace the kit?
Typical tools: screwdrivers (Phillips and flat), nut drivers or socket set, pliers, needleânose⢠pliers, towelsand a small pick â˘or flat tool to remove old seals. Time varies by modelâ and experiance: âexpect 30-90 minutes for âmost models. If the pump housing must âbe removed or the motor detached, allow â˘more time.
What are the key installation tips to ensure a proper seal and prevent future â¤leaks?
Clean mating surfaces âthoroughly before âinstalling the new seal⣠and impeller. Install the⣠mechanical seal⢠with the correct⢠orientation (ceramic face toward the rotating shaft in most designs) âand replace any Oârings or gaskets in the kit. Use a small amount⢠of dishwasherâsafe silicone â˘grease to seat rubber Oârings â(do not use petroleum grease). Do not overtighten fasteners-secure evenlyâ and snugly. Inspect the pump housing and sump for cracks; a âŁcracked housing will still leak even with a new seal.
After replacing theâ kit I âstill have noise or leakage-what should I check next?
If â¤leakage continues, inspect the pump housing/sump for hairline cracks, verify all Oârings and gaskets were replaced âŁand properly seatedand check that the impeller â¤hub âŁis â¤fully engaged on the motor shaft. Persistent noise can indicate worn motor bearings or a damaged âmotor shaft-if the shaft is scored or the motor bearings are bad, the entire⤠pump/motor assembly may need replacement. Also check for foreign objects (glass, silverware) that can damage the impeller.
Are aftermarket kits acceptable and what lubricant should I use when installing the âseal?
Highâquality aftermarket kits are often acceptable and less expensive, â¤but ensure the kit is⢠listed âas compatible with your exact model. OEM parts generally offer the best guarantee of fit.For lubrication, use a small amount ofâ foodâgrade or dishwasherârated⢠silicone grease on rubber Oârings only. âDo not use petroleumâbased greases (they can degrade seals) and do not lubricate ceramic⤠faces of mechanical seals-only the rubber components that require seating.
To Wrap it Up
The 675806 Whirlpool Dishwasher Pump⣠impeller and seal Kit plays a central role in the appliance’s water circulation andâ drainage system.The impeller drives water âthrough the âwash andâ rinse cycles while the seals maintain a watertight interface around the pump assembly; together â˘they affect cleaning âperformance, noiseâ levelsand the prevention of leaks. â˘When these components wear, âcrackor â˘become clogged, symptoms such as reduced âwash quality, poor draining, unusual noiseor visible leakage can occur,â and addressing theâ impeller and seals is often the most direct remedy to restore normal operation.
Proper diagnosis and timely replacement âof the 675806 kit are significant to avoid unneeded repairs and to limit secondary damage to the motor or surrounding components. Confirming symptoms⢠and compatibility, â¤following manufacturer instructions for installationand âobserving basic safety precautions (power off, water supply isolated) will help ensure an⢠effective repair. When diagnosis is unclear or installation âŁis beyondâ one’s experience, âconsulting a qualified â˘technician can safeguard appliance⤠performance and longevity⤠while minimizing risk of further⤠failure.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
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