Water Softener Manuals by Brand and Model

Use the model number from the unit—not its color or cabinet shape—to find the correct document. SoftenerCheck links to manufacturer-hosted owner, programming, and support manuals and labels the control family when it is known.

27 documents across 9 brands, every one on a domain the manufacturer owns. All were fetched and their model scope read on September 3, 2026. We do not host copies of anyone's manual.

Filter by brand, or type a model number. Every entry states the document type, the models the document itself names, and the manufacturer domain serving it.

Use the model number printed on the unit, for example WHES30 or 5600SXT. On many cabinet softeners the serial and model are on the inside rim of the tank, under the salt lid.

Showing all 27 documents.

  • Whirlpool

    Water Softener Owner’s Manual — Models WHES30 and WHES33 PDF

    Owner’s manual WHES30 / WHES33 WHES30 · WHES33 on whirlpoolwatersolutions.com Checked September 3, 2026

    Control family: Whirlpool electronic demand control (model codes L30P / L33P)

    Contains the specification table, the hardness and recharge programming steps, the salt bridge procedure, the troubleshooting table and the error codes. The model code shown in diagnostics is L30P for the WHES30 and L33P for the WHES33.

  • Whirlpool

    Softener Programming Guide Web page

    Programming guide Current Whirlpool softeners with a Program/Select control on whirlpoolwatersolutions.zendesk.com Checked September 3, 2026

    Covers time, hardness, recharge time, salt type and salt level. Whirlpool does not list model numbers on this page and states some steps are for select models only, so check it against your own owner’s manual.

  • Whirlpool

    Hardness Level Programming Web page

    Programming guide Whirlpool softeners with a Hardness programming screen on whirlpoolwatersolutions.zendesk.com Checked September 3, 2026

    The ppm-to-gpg conversion, the clear water iron multiplier and the potassium chloride adjustment, as Whirlpool states them.

  • Whirlpool

    How do I know if my softener is working? Web page

    Support page Whirlpool residential softeners on whirlpoolwatersolutions.zendesk.com Checked September 3, 2026

    Routes by the first seven digits of the serial number, printed on the inside rim of the tank under the salt lid hinges.

  • Kenmore

    How do I know if my softener is working? Web page

    Support page Kenmore residential softeners on kenmorewatersolutions.zendesk.com Checked September 3, 2026

    Kenmore routes by the first seven digits of the serial number. Use the Kenmore site for a Kenmore unit even though the layout resembles other brands’ support sites.

  • Kenmore

    Hardness Level Programming Web page

    Programming guide Kenmore softeners with a Hardness programming screen on kenmorewatersolutions.zendesk.com Checked September 3, 2026

  • GE

    Water Softener — Not Softening the Water Web page

    Support page GE residential water softeners on products.geappliances.com Checked September 3, 2026

    GE’s own ordered checks for a unit that is not softening, including the salt bridge test and the nozzle and venturi inspection.

  • Fleck (Pentair)

    Fleck 5600SXT Upflow Service Manual PDF

    Service manual Fleck 5600SXT — upflow configuration 5600SXT on pentair.com Checked September 3, 2026

    Control family: Fleck SXT electronic controller

    Upflow and downflow are separate documents with different programming chapters. Confirm which configuration your valve is before following either.

  • Fleck (Pentair)

    Fleck 5600SXT Downflow Service Manual PDF

    Service manual Fleck 5600SXT — downflow configuration 5600SXT on pentair.com Checked September 3, 2026

    Control family: Fleck SXT electronic controller

    Upflow and downflow are separate documents with different programming chapters. Confirm which configuration your valve is before following either.

  • Clack

    Water Specialist WS1 and WS1.25 Operation and Instruction Manual PDF

    Programming guide Water Specialist WS1 / WS1.25 WS1 · WS1.25 on clackcorp.com Checked September 3, 2026

    Control family: Clack Water Specialist WS1 series

    Clack states on the cover that this document is for OEM use only and is not the complete system manual. A Clack valve is fitted to a system someone else built, so tank size, resin volume and programme come from that system builder, not from Clack.

  • Clack

    Technical Support — control valve manuals index Web page

    Support page All Water Specialist control valves on clackcorp.com Checked September 3, 2026

    Stable index. Use it if a direct PDF link has moved: Clack reorganises the individual file paths but keeps this page.

  • WaterBoss

    Troubleshooting Tips Web page

    Support page WaterBoss residential softeners on waterboss.com Checked September 3, 2026

    Covers reduced pressure, high salt use, the E2 error code, salt bridges and a flashing 00 display.

  • Culligan

    Product Manuals Web page

    Support page All Culligan residential products on culligan.com Checked September 3, 2026

    Culligan’s own index, grouped by product family. Start here if your Culligan unit is not one of the families listed below.

  • Culligan

    HE 1.25" Water Softener Owner’s Guide PDF

    Owner’s manual Culligan HE 1.25" Softener HE 1.25" on wp.culligan.com Checked September 3, 2026

    A separate document from the 1" HE softener guide. The valve size differs.

  • A. O. Smith

    Whole House Water Softeners Owner’s Manual — 350C, 400T and 450T PDF

    Owner’s manual Whole House Water Softeners 350C / 400T / 450T AO-WH-SOFT-350C · AO-WH-SOFT-400T · AO-WH-SOFT-450T on aosmithatlowes.com Checked September 3, 2026

    Bilingual English and Spanish document covering installation, troubleshooting and replacement parts for the three model numbers named on its cover.

  • A. O. Smith

    Water Treatment Product Resources Web page

    Support page A. O. Smith water treatment products on aosmith.com Checked September 3, 2026

    Use this index if your A. O. Smith model is not one of the three named above.

  • Rheem

    How Does a Bypass Valve Work? Web page

    Support page Rheem residential softeners on rheemwatertreatment.zendesk.com Checked September 3, 2026

    Includes the blending valve, which deliberately mixes hard water into the softened output and can explain a hard test result on a working unit.

Finding your model number

The model number is what determines which document applies. Cabinet colour, tank shape and retailer name do not.

  • On many cabinet softeners the serial number is printed on the inside rim of the tank, under the salt lid hinges. Whirlpool and Kenmore both route their support articles by the first seven digits of that serial number.
  • On a two-tank system the label is usually on the control valve head or on the resin tank itself.
  • Whirlpool controls also report a model code in their diagnostic display — L30P for a WHES30, L33P for a WHES33 — which is a useful cross-check that the unit is configured as the model it appears to be.
  • If the unit was installed by a dealer under their own brand, the control valve may carry a different manufacturer's name than the cabinet. The valve is what you programme, so the valve manufacturer's document is usually the one you need.
  • Manufacturer domains only. Every link goes to a host the brand operates. No aggregator sites, no rehosted PDFs, no scanned copies of uncertain provenance.
  • Scope comes from the document. A manual is only listed as covering a model when the document itself, or the manufacturer's own index entry, names that model. We never infer coverage from a similar-looking model number.
  • Format is labelled. PDF links are marked so a tap on a phone is not a surprise download.
  • Links are tested on every build. An automated check verifies each URL is still reachable, and the checked date shown against each entry is the date it was last confirmed by hand.
  • We record when a link moves. Manufacturers reorganise their sites. When a document moves, we find its replacement within the same official domain, verify it still covers the same models, and note the substitution on the sources page.

Sources checked

Each link goes to the manufacturer or organisation that published it. We do not host copies.

  1. Clack Corporation Water Specialist WS1 and WS1.25 Operation and Instruction Manual PDF Cover page · Applies to: Clack WS1, Clack WS1.25 · Checked September 3, 2026
  2. Pentair Fleck 5600SXT Upflow Service Manual PDF Cover page and table of contents · Applies to: Fleck 5600SXT · Checked September 3, 2026
  3. Whirlpool Water Solutions Whirlpool Water Softener Owner’s Manual — Models WHES30 and WHES33 PDF Page 13, "Set Water Hardness Number"; iron guidance also on page 5 · Applies to: Whirlpool WHES30, Whirlpool WHES33 · Checked September 3, 2026
  4. Water Quality Association Glossary of Terms Applies to: generic · Checked September 3, 2026