675806 Whirlpool Dishwasher Pump Impeller adn Seal Kit is a replacement impeller and sealing assembly designed for the wash-pump section of compatible Whirlpool dishwashers. the kit typically contains a molded impeller, shaft seal(s), and associated gaskets or O-rings; these are service components that restore the hydraulic and sealing function of the pump without replacing the entire motor or pump housing.
Inside the appliance the impeller converts motor torque into fluid flow, circulating wash water from the sump to the spray arms, while the seals prevent water from contacting the motor and adjoining bearings. The component interfaces mechanically with the pump shaft and housing and functionally with the pump motor, sump, filters and spray manifold; proper impeller geometry and intact seals are necessary to maintain required flow rates, pressure and to prevent leaks that can damage electrical components or the cabinet.
In this article readers will find a technical overview of the kit’s function and the models were it is used, criteria for compatibility and part selection, typical failure symptoms (reduced flow, unusual noise, leakage, motor overheating or error codes), step-by-step diagnostic checks to isolate impeller or seal faults, and practical replacement considerations such as correct assembly orientation, sealing lubrication, inspection of mating surfaces, and post-repair verification procedures.
Table of contents
- Function and Role of the Dishwasher Pump Impeller and Seal in Water Recirculation and Leak Prevention
- How the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit Operates Within the Motor Housing, Impeller Chamber, and Seal interfaces
- Diagnostic Indicators and Common Failure Symptoms of a Worn Impeller or Compromised Seal (Noise, Leaks, Reduced Circulation)
- Compatibility, Removal and Replacement Procedures, and Troubleshooting Diagnostics for the 675806 Kit Across Whirlpool Models
- Q&A
- The Way Forward
Function and Role of the Dishwasher Pump Impeller and seal in Water Recirculation and Leak Prevention
The primary role of the impeller in the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit is to convert motor torque into a controlled water flow that recirculates wash liquid through the spray arms and sump. The molded vanes and hub geometry determine flow rate and pressure; wear, chipped vanes, or debris erosion reduce hydraulic efficiency and can cause reduced spray coverage or increased motor load. The paired sealing assembly isolates the motor end from the sump by maintaining a sealed interface around the rotating shaft, so replacing the impeller without renewing the seal can restore flow but leave the unit vulnerable to leaks at the motor bearing housing. Confirm compatibility with the dishwasher’s pump housing, shaft spline, and mounting orientation before installing this kit to ensure correct fit and performance.
failures originate from two basic mechanisms: hydraulic degradation of the impeller (abrasion, cavitation, foreign-object damage) and deterioration of the sealing faces and elastomers (surface scratching, chemical swelling, or hardening). A mechanical seal typically consists of a hard mating face and a compliant counterface plus an elastomeric O‑ring; the faces must be flat and free of nicks to maintain a thin film and prevent leakage. Practical service checks include inspecting the impeller for asymmetric wear or missing vane material, verifying the seal seat for scratches, and measuring axial play on the shaft; if the motor exhibits humming, higher amperage, reduced flow, or water pooling beneath the unit, replace both impeller and seal and verify the mating surfaces are clean before reassembly to restore recirculation and leak prevention reliability.
- Common symptoms signaling impeller or seal failure: reduced spray pressure,unusual motor noise,visible water under the dishwasher,and increased motor current draw.
- Pre-install checks: confirm pump housing part number, shaft spline match, and inspect seal seat for scoring or corrosion.
| Item | Description |
|---|---|
| Impeller | Molded vane component that drives recirculation flow; performance depends on vane integrity and concentric mounting. |
| Seal assembly | Face seal plus elastomeric O‑ring that prevents sump fluid reaching the motor/shaft bearings. |
| Compatibility note | Kit intended for specific Whirlpool pump housings-verify pump model and shaft interface before replacement. |
How the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit Operates Within the Motor Housing,Impeller Chamber,and Seal Interfaces
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit replaces the rotating and sealing elements inside the pump’s impeller chamber so the motor,impeller and housing can maintain hydraulic pressure without coolant intrusion. In operation the impeller mounts concentrically on the motor shaft to convert motor torque into fluid flow while the seal assembly isolates the wet chamber from the motor housing. The dynamic seal face and mating stationary face (with their backing sleeve and O‑ring) absorb axial shaft motion and accommodate small eccentricities; when these components are intact the pump sustains designed flow and pressure with minimal leakage into the motor cavity. This kit is intended for pump housings that accept the OEM 675806-style assembly and must be installed with the correct shaft alignment and seating surfaces to function as specified.
The primary sealing interface uses a hard mating face and a polished mating ring backed by an elastomeric static seal; wear, surface damage, or trapped debris on either face will permit pressurized water to bypass into the motor housing or cause cavitation and noise. Practically, technicians should verify concentric fit of the impeller on the shaft, confirm that the seal landing and housing bore are clean and free of corrosion, and replace the O‑ring and mating ring together to restore frontal and radial sealing integrity. Typical failure modes include pitted seal faces, cut O‑rings, and impeller blade erosion; replacing the kit restores hydraulic performance provided the motor bearings and pump housing are within tolerance. Below are common symptoms and swift diagnostic checks to determine whether the impeller/seal kit is the source of the problem.
- Visible leak at the motor housing base or wet motor windings
- Marked reduction in water pressure or uneven spray patterns
- Grinding or scraping noise indicating impeller damage or rub against housing
- Excessive motor heat or increased current draw consistent with internal leakage
| Item | Description |
|---|---|
| Impeller | Converts shaft torque to fluid flow; must be concentric and undamaged for proper pressure. |
| Mechanical seal | Hard/polished mating faces with a spring-loaded interface that prevents water ingress under pressure. |
| O‑ring / sleeve | Static seal and axial location component that cushions and centers the rotating face; material must match housing bore chemistry and temperature. |
Diagnostic Indicators and Common Failure Symptoms of a Worn Impeller or Compromised Seal (Noise, Leaks, Reduced Circulation)
The pump impeller converts motor torque into directed water flow through the dishwasher’s spray system while the mechanical seal prevents wash liquid from reaching the motor and bearings. The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit contains the replaceable rotor and seal components used in the pump housing to restore hydraulic performance and leak control when those parts fail. In practice, an impeller with eroded blades or a compromised seal will degrade circulation and allow contaminants into the motor cavity; technicians should plan for access to the pump housing, removal of debris, and verification that the replacement components match the pump’s shaft diameter and housing profile before installation.
Common diagnostic indicators are distinct and measurable: acoustic signatures from a damaged impeller differ from the low-frequency hum of an overloaded motor, visible coolant at the motor end indicates seal breach, and reduced spray-arm rotation or longer cycle times point to diminished flow. A practical bench check is to remove the pump and attempt to spin the impeller by hand-binding, roughness, or looseness suggests wear or broken vanes-while a wet or corroded motor endplate indicates seal failure. Replacing both the impeller and seal with a compatible kit often resolves combined symptoms, but technicians should also inspect for foreign-object damage, worn bearings, and clogged inlets as secondary causes.
- Audible grinding, clicking, or scraping – impeller damage or trapped debris.
- Continuous motor hum without pumping - impeller shear or jam, or damaged shaft coupling.
- Visible leaking at the pump/motor junction or wet motor housing – failed mechanical seal.
- Reduced spray-arm rotation, poor washing performance, or extended cycle evaporation – decreased hydraulic output from worn impeller or clogged passages.
| Item | Description |
|---|---|
| Noise (grinding/hitting) | Broken or chipped impeller vanes,or debris contacting the impeller. |
| Leak at motor end | Mechanical seal failure allowing wash water into the motor compartment. |
| Reduced circulation | Impalment wear, clogged inlet, or distorted housing reducing flow efficiency. |
Compatibility, Removal and Replacement Procedures, and troubleshooting Diagnostics for the 675806 Kit Across Whirlpool Models
The 675806 whirlpool Dishwasher Pump impeller and Seal Kit replaces the rotating impeller and the ceramic or elastomeric seal that isolates the pump chamber from the motor. The impeller transmits hydraulic energy to move wash and drain water, while the seal prevents water from migrating into the motor cavity; wear or damage to either component typically produces reduced flow, cavitation noise, or motor contamination and failure. Several Whirlpool and Kenmore dishwasher models share the same pump housing and mounting flange geometry, but differences in motor shaft length, mounting clamps, and chopper assemblies require model verification before ordering the kit; consult the appliance parts diagram or measure shaft engagement and bolt pattern to confirm compatibility rather than relying solely on model year or series name.
Removal and replacement require basic disassembly of the lower wash chamber and pump mounting hardware: isolate power and water, remove the lower rack and access panel, drain residual water, detach inlet and drain hoses, unfasten the pump-to-tub fasteners, and seperate the pump housing to access the impeller and seal. Troubleshooting diagnostics begin with non-invasive checks-visual inspection for debris in the impeller, manual spin to detect bearing or rubbing, and pressure/leak testing after reassembly; if the motor hums without impeller rotation, measure for mechanical bind or a sheared coupling before replacing the motor. Use the checklist below for common symptoms and quick diagnostics prior to full replacement.
- Symptom: Poor or no circulation – check for broken impeller blades,excessive axial play,or clogged chopper screen.
- Symptom: Water under dishwasher – inspect seal face for scoring, hardening, or missing O-ring and examine motor end for water staining.
- Diagnostic: noise/drag – rotate impeller by hand to feel roughness; remove debris from inlet and inspect for abrasion on impeller hub.
- Diagnostic: Motor runs but no flow – verify impeller engagement on motor shaft and confirm correct impeller orientation during reassembly.
| Item | Description |
|---|---|
| Compatible housings | most Whirlpool single‑chamber pump housings with matching mounting flange and shaft diameter; verify part cross‑reference. |
| typical failure modes | Seal face wear, impeller erosion/cracking, clogging from food debris, and shaft/coupling shear. |
| Tools required | Screwdrivers, nut drivers, pliers, drain bucket, and a small pick for O‑ring removal; optional multimeter for motor checks. |
Q&A
What is the 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit and what parts are included?
The 675806 kit is an OEM replacement service kit for the dishwasher circulation/drain pump. It typically contains the plastic impeller,the mechanical shaft seal (or seals),and any small O‑rings or retainers required to seat the seal and impeller.Contents can vary by supplier, so confirm the exact items in the package before starting the repair.
How do I know if this kit is compatible with my dishwasher model?
Compatibility is steadfast by your dishwasher model number. Check the manufacturer’s parts lookup (Whirlpool/Maytag/KitchenAid, etc.) or the appliance model sticker (usually on the door rim) and search for part number 675806 or the listed pump/impeller part in the service manual. Many appliances from Whirlpool and related brands use this kit, but always verify against your exact model to avoid ordering the wrong part.
What symptoms indicate I need to replace the pump impeller or seal?
Common signs include: leaks from the bottom of the dishwasher (water pooling under or around the unit), reduced wash performance (poor water flow/spray), noisy operation (grinding, rattling or squealing from the pump), pump running but no water movement, or visible damage to the impeller when you inspect the pump housing. if the motor shaft or seal area is scored or corroded, replacing the seal alone may not stop leaks.
Can I replace the impeller and seal kit myself or should I hire a technician?
Many competent DIYers and service technicians can replace this kit. The job requires basic mechanical skills and common tools (screwdrivers, nut drivers, pliers, sockets). You must disconnect power (unplug or turn off circuit) and shut off water, drain the dishwasher, and remove the lower access panel, lower rack, spray arm and filter to reach the pump. If you are uncomfortable working with appliance wiring, removing the tub, or if the motor shaft is damaged, hire a professional.
What are the high-level steps to replace the pump impeller and seal?
High-level steps: 1) power off and shut water supply,drain residual water. 2) Remove lower rack, spray arm and filter assembly. 3) Remove toe-kick and access/heat/outer panels as needed to reach the pump housing. 4) Disconnect electrical connectors and remove pump housing fasteners. 5) Separate pump housing, remove old impeller and carefully extract the mechanical seal components. 6) Clean sealing surfaces, inspect motor shaft for damage. 7) Install the new seal and impeller per kit instructions (correct orientation and seating are critical). 8) Reassemble, reconnect wiring, restore water and power, and test. Follow the service manual for your model for exact disassembly and reassembly procedures.
Are there special tips for installing the seal so it doesn’t leak?
Yes.Ensure mating surfaces are clean and dry and that the seal sits flat and fully seated in its bore. Do not reuse old seals. Avoid getting petroleum-based lubricants on the new seal-use a small amount of silicone grease only where the manufacturer recommends (usually on O‑rings, not on the sealing faces).Handle the ceramic seal faces carefully to avoid chipping. If the motor shaft is scored, pitted, or bent, the new seal will likely fail-inspect and replace the motor/pump assembly if needed.
What tools and materials will I need for the job?
Typical tools: phillips and flat screwdrivers, nut driver/socket set (common sizes 1/4″-5/16″ for appliance fasteners), pliers, utility knife, shop towels, a small flat punch or seal puller (for removing the old seal), and silicone grease for O‑rings if recommended. Have a bucket or towels ready to catch water when you open the pump. Consult the model service guide for any model-specific tool requirements.
How should I test the dishwasher after installing the kit and how long will the repair last?
After reassembly, restore power and water, then run a short wash cycle and observe for leaks, abnormal noises, and proper water circulation. Check beneath the dishwasher for any drips and verify spray arms are spinning and the wash performance is normal. Lifespan depends on use, water quality and whether the motor shaft was in good condition-a properly installed new impeller and seal should last several years under normal use. If leaks or noises persist, recheck installation and inspect the pump motor shaft and housing for damage.
The Way Forward
The 675806 Whirlpool Dishwasher Pump Impeller and Seal Kit is a critical component assembly that sustains water circulation and prevents leakage within compatible Whirlpool dishwashers. By restoring a properly functioning impeller and reliable seals, the kit supports effective cleaning performance, maintains motor and pump integrity, and helps preserve overall appliance efficiency and longevity.
Timely replacement of worn impellers and deteriorated seals can prevent progressive damage to the pump assembly and surrounding components, reduce the risk of water intrusion, and minimize operational issues such as poor cleaning, unusual noise, or reduced drainage. Using the correct kit for the specific model ensures proper fit and function, which contributes to consistent dishwasher performance and can avoid unnecessary future repairs.
Proper diagnosis is essential before replacement: identifying symptoms that point to impeller or seal failure and confirming that the pump assembly is the source of the problem helps ensure that the repair addresses the root cause.when replacement is warranted, following manufacturer guidelines or engaging a qualified service technician promotes a safe, reliable installation and maximizes the benefit of the 675806 kit for continued appliance performance.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
Revolff Home Services
for expert appliance repair services.
For local appliance service information see
Dryer repair Henderson
.
Replacement parts for many appliance models can also be found at
Reliable-Parts-Hub
.
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