Kenmore 420 Series Rotary Valve Service, To Relieve Pressure, Disassembly, Servicing the Valve

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Service Tech Information

ROTARY VALVE SERVICE

IMPORTANT: Before working on the valve, turn off the water supply and disconnect from electrical power.

TO RELIEVE PRESSURE:

•3 VALVE BYPASS: Close the inlet valve and open a soft water faucet. Then close the outlet valve and open the bypass valve.

•SEARS SPECIAL BYPASS: Slide the bypass valve stem to bypass position. Loosen three hex head screws toward the back side of the valve to allow pressure water to bleed out. Catch water with a rag.

DISASSEMBLY

To remove a part or group of parts, refer to the valve drawing. A common screwdriver or nut driver, Phillips screwdriver and pliers are the only tools needed to com- pletely disassemble.

SERVICING THE VALVE

Inspect all o-rings, seals and gaskets for wear or defects.

Inspect the bottom surface of the rotor for scratches, chips or wear.

Note: If replacement is needed, be sure to use the current replacement part.

ASSEMBLY

Be sure all parts are in place and in the proper position. Lubricate ALL o-rings and seals with FDA approved sili- cone grease. To install the rotor seal, first place the seal into the valve groove, rounded side down (see cross-sec- tion). Apply a light coating of silicone grease to the seal’s crossing ribs. Then, carefully center the wear strip on the seal, and push it downward onto the seal.

Install the nozzle and venturi seal and drain seal. Assemble wave washer bearing, the wave washer, and two o-rings, onto the rotor top shaft. Then center the rotor in the valve body, on the rotor seal.

Lower the cover onto the valve body and rotor shaft. Then install the cover holding screws. Before tightening the screws, install the valve cam and gear.

Then, turn the rotor (clockwise only) to service position. Tighten the screws using a criss-cross pattern. If a torque wrench is available, torque to 30-40 inch pounds. Do not over tighten.

Lubricate the gear on the motor, and the valve cam gear with Molykote grease, or other high quality gear lubricant.

Be sure to orient switch as shown, with lever toward the cam.

Motor mounting screws

Motor

Motor plate screws

 

Motor Plate

 

Bearing

Switch

Cam & Gear

O-Ring Seals

O-Ring

Wear-Strip

Wave Washer

bearing, wave washer

Rotor & Disc

Seal

Rotor Seal

Drain Seal

Nozzle & Venturi Seal

Sensor

Housing

See Nozzle

Assembly Service

FIG. 68

Questions? Call The Kenmore Water Line 1-800-426-9345

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Contents Water Softeners Save this ManualThree Year Limited Warranty on Electronic Parts Warranty on Water SoftenerONE Year Limited Warranty on Water Softener TEN Year Limited Warranty Against LeaksTable of Contents Facts and Figures to KeepSafety Guides Small Parts Unpack and Check Your CartonParts Descriptions Inspect ShipmentPlan Your Installation Plan Your InstallationProper Order to Install Water Treating Equipment Tools NeededWhere to Install the Water Softener Soft, HotSuggested Slab Foundation Installation Draw in Your Pipes and FittingsOUT PIPE, FITTINGS, Other Materials NeededRead Before Beginning Installation Before Installing Checks & TestsBypass Valve Install Plastic Bypass ValveAssemble Inlet Outlet ADAPTORS, or Plastic Bypass Valve Inlet and Outlet Threaded AdaptorsInstalling 3 Valve Bypass and Pipes Install 3-Valve BypassInstalling Holding Clips Valve BypassTypical Soldering Connections Locate Water Softener and Connect PipesMove Softener Into Place Position Softener Into PlaceConnect Valve and Salt Tank Drains Connect the Valve Drain HoseConnect Salt Tank Overflow Tubing Single Bypass Leak TestHouse Main Water Shutoff Valves Leak TestElectrical Requirements Water Meter Jumper WireConnecting Transformer Cold Water Pipe GroundingInstall Covers Install Covers and Restart Water HeaterProgram The Timer Program the TimerSET Present Time of DAY SET Water Hardness NumberSET Regeneration Time Recharge TimeSanitize The Water Softener Sanitize the Water SoftenerSanitize Your Water Softener AS Follows Adding Salt To The Storage Tank Adding Salt to the Storage TankWater Softening Salt with Iron Removing Additives Check List of STEP-BY-STEP Guides to Install Check ListFaceplate Timer Features Options OptionsKCl Units Service Mode KENMORE’S Ultra Cleansing Feature How Your Water Softener Works Water Flow Through Softener in ServiceSoft Water Service and Regeneration Water Flow Through Softener in FillWater Flow Through Softener Brining and Brine Rinse Water Flow Through Softener in BackwashWater Flow Through Softener Fast Rinse Automatic BypassElectronics Care Of Your Water Softener Salt BridgeSalt Bridge Keeping the Water Softener Clean Iron from Resin BEDNozzle & Venturi Drain ALL Water from Softener Protect the Water Softener from FreezingProblem Cause Correction Checklist to Help YOU Save MoneySpecifications Model 384260 Timer Code H46 Model 394260 Timer Code H47Bypass Valves Performance Claims Faceplate Service Tech InformationWiring Schematic Always Make These Initial Checks FirstProcedure for Removing Error Code from Faceplate Manual Initiated Electronics DiagnosticsPossible Defect Code Timer PWA Replacement Manual Advance Regeneration Check Cycle Flow Rates Gallons PER MINAssembly Rotary Valve ServiceDisassembly To Relieve PressureWater Flow Through the Softener Valve Service Cycle Fill CycleBrining and Brine Rinse Cycle Backwash Cycle Water Flow Through the Softener Valve Backwash CycleFast Rinse Cycle Fast Rinse CyclePage Exploded View Parts List Water Softener CompleteInlet Outlet Grounding Clamps Brine Valve Assembly Wear-Strip Seal Cross-Section View Key Part Number Part Description Get it fixed, at your home or ours

420 Series specifications

The Kenmore 420 Series is a popular line of home appliances designed to elevate the overall cooking experience. This series is a reliable choice for many households, offering a range of advanced features and user-friendly technologies that enhance performance and convenience.

One of the standout features of the Kenmore 420 Series is its powerful heating capabilities. Equipped with a high-performance oven, it ensures that meals are cooked evenly and efficiently. The series often includes multiple cooking modes, such as convection baking and broiling, which provide flexibility for various recipes. This versatility allows users to experiment with their cooking, whether they are baking desserts or roasting meats.

The cooktop design of the Kenmore 420 Series is equally impressive. With multiple burners offering various heat settings, users can simmer, sauté, and boil simultaneously. Many models also incorporate dual burners, which can switch between high and low heat settings, catering to diverse cooking needs. Additionally, the series often features smooth tops, making cleaning a breeze after cooking.

In terms of technologies, the Kenmore 420 Series embraces modern innovations to improve user experience. The presence of smart technology in some models allows homeowners to control their appliances remotely. An integrated app can provide notifications and cooking tips, making meal preparation more convenient than ever.

Energy efficiency is another critical aspect of the Kenmore 420 Series. These appliances are designed to consume less energy while delivering high performance, helping users save on their electricity bills and reduce their environmental footprint. Many models even come with an Energy Star rating, ensuring that they meet stringent energy efficiency guidelines.

Another notable characteristic of the Kenmore 420 Series is its robust construction and design. Built with high-quality materials, these appliances are not only functional but also aesthetically pleasing, blending seamlessly with modern kitchen decor. The ergonomic controls and intuitive interfaces make it easier for users to operate the appliances, regardless of their cooking skills.

Overall, the Kenmore 420 Series stands out as a reliable choice for families and culinary enthusiasts alike. With its powerful performance, innovative technologies, and energy-efficient features, this series meets the varied needs of today's homeowners, making it a staple in many kitchens. Whether you're a novice cook or an experienced chef, the Kenmore 420 Series offers the tools and versatility you need to create delicious meals.
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