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North Star NSC22 - User Manual

North Star NSC22
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7371119 (Rev. A 6/11/18)
Installation and Operation Manual
How to install, operate
and maintain your Demand
Controlled Water Softener
Models
NSC22 & NSC31
Systems tested and certified by the
Water Quality Association against CSA B483.1.
Systems tested and certified by NSF International
against NSF/ANSI Standard 44
for hardness reduction and efficiency,
and certified to NSF/ANSI Standard 372.
If you have any questions or concerns when
installing, operating or maintaining your
water softener, contact us at:
info@northstarwater.com
or visit www.northstarwater.com
Manufactured and warranted by
North Star Water Treatment Systems
1890 Woodlane Drive
Woodbury, MN 55125
Designed, Engineered &
Assembled in the U.S.A.

Table of Contents

Questions and Answers

  • S
    Sarah ThompsonAug 16, 2025
    Why is the water from my North Star Water Dispenser hard sometimes?
    • D
      danamacdonaldAug 16, 2025
      If the water from your North Star Water Dispenser is sometimes hard, there are several potential causes: 1. The time might be set incorrectly. Check and correct the time setting. 2. The water hardness might be set incorrectly. 3. The model code might be programmed incorrectly. 4. Hot water may be used when the softener is regenerating. Avoid using hot water during regeneration, as the water heater will fill with hard water. 5. There might be a possible increase in water hardness. Test untreated water and program the water softener accordingly. 6. There may be leaking faucet or toilet valve, leading to excessive water usage. Fix any leaks and ensure faucets are fully closed.
  • E
    Eric DunlapAug 19, 2025
    What to do if my North Star Water Dispenser has no soft water and the display is blank?
    • B
      Brandon ChoiAug 19, 2025
      If your North Star Water Dispenser isn't producing soft water and the display is blank, it indicates a power issue. Here's what to check: 1. Ensure the power supply is plugged into the wall outlet and the power cable is securely connected to the back of the electronic board. Correct any power loss, reset the electronic controls, and then use the RECHARGE NOW feature. 2. Check for a blown fuse, tripped circuit breaker, or a switched-off circuit. Replace the fuse, reset the circuit breaker, or switch the circuit on, and then use the RECHARGE NOW feature. 3. The electronic control board might be malfunctioning. Replace the electronic control board.
  • R
    randersonAug 22, 2025
    Why is my North Star Water Dispenser not producing soft water and the salt level not dropping?
    • S
      Shannon VazquezAug 22, 2025
      If your North Star Water Dispenser isn't producing soft water and the salt level isn't dropping, consider these possibilities: 1. The salt storage tank might be bridged. Break the salt bridge. 2. The bypass valve(s) might be in the bypass position. Move the bypass valve(s) to the service position.
  • N
    nicholstammyAug 28, 2025
    What does error code E1, E3, or E4 mean on my North Star Water Dispenser?
    • L
      Laura PalmerAug 28, 2025
      If error code E1, E3, or E4 appears on your North Star Water Dispenser, it indicates a fault. Here's what you can check: 1. There may be a fault in the wiring harness or connections to the position switch. Replace the wiring harness or connections to the position switch. 2. There may be a fault in the switch. Replace the switch. 3. There may be a fault in the valve causing high torque. Replace the rotor/seal. 4. The motor may be inoperative. Replace the motor.
  • K
    Kelly ParkerAug 31, 2025
    Why is there iron in the water from my North Star Water Dispenser?
    • M
      Megan McguireAug 31, 2025
      If there's iron in the water from your North Star Water Dispenser, consider these possibilities: 1. There may be clear water iron in the water supply. Test untreated water for hardness and iron, and program the water softener accordingly. 2. There may be iron in the soft water. Clean the resin bed with Resin Bed Cleaner, following the instructions on the package. 3. Bacterial or organic bound iron cannot be treated by a water softener.
  • S
    suzanne92Sep 3, 2025
    What does error code E5 mean on a North Star Water Dispenser?
    • A
      Anita Gregory MDSep 3, 2025
      If error code E5 appears on your North Star Water Dispenser, it indicates an electronic control malfunction. Replace the electronic control board.
  • A
    Alexander EdwardsSep 6, 2025
    Why is the motor in my North Star Water Dispenser stalled or clicking?
    • T
      Tammy WellsSep 6, 2025
      If the motor in your North Star Water Dispenser is stalled or clicking, it could be due to a motor malfunction or an internal valve fault causing high torque on the motor. You can either replace the rotor/seal or replace the motor and switch.
  • J
    John Ramirez MDSep 9, 2025
    What causes a North Star Water Dispenser salt storage tank to leak?
    • J
      Jennifer Young DVMSep 9, 2025
      If the salt storage tank of your North Star Water Dispenser is leaking, it's likely due to a crack in the brine tank. Replace the salt storage tank assembly.
  • B
    Benjamin CarrollSep 12, 2025
    Why is there resin in my household plumbing from my North Star Water Dispenser?
    • A
      Amy RojasSep 12, 2025
      If there's resin in your household plumbing from your North Star Water Dispenser, it's likely due to a crack in the distributor or riser tube. Replace the resin tank assembly.
  • J
    james71Nov 24, 2025
    What causes no soft water, full salt tank, and water draining during the soft water cycle in my North Star Water Dispenser?
    • R
      regina36Nov 24, 2025
      If your North Star Water Dispenser isn't producing soft water, the salt storage tank is full of water, and water is running to drain during the soft water cycle, here are potential causes: 1. The nozzle and venturi assembly may be dirty, plugged, or damaged. Take apart, clean, and inspect the nozzle and venturi. 2. An inner valve fault might be causing a leak. Replace the seals and rotor. 3. The valve drain hose may be plugged. Ensure the hose has no kinks, sharp bends, or blockages. 4. The valve drain line and salt storage tank overflow drain might be connected together by a tee. Disconnect the tee and run separate drain lines. 5. The system water pressure may be too low or too high. If pressure is low, increase well pump output to a minimum of 20 psi. If daytime pressure is over 10...

Summary

Water Softener Warranty

Specifications and Performance Claims

Before You Start

Installation Requirements

Inlet, Outlet, and Drain Plumbing Options

Installation Instructions

Turn Off Water Supply

Procedure for safely shutting off the water supply before installation.

Move the Unit Into Place

Completing Inlet and Outlet Plumbing

Plumbing Connections and Leak Testing

Install Valve Drain Hose

Test for Leaks

Procedure to check for water leaks after installation and filling the system.

Final Installation Steps

Sanitize the Water Softener

Procedure for sanitizing the unit using bleach for hygiene.

Add Water and Salt to the Salt Storage Tank

Program the Controller

Initial steps to set up the softener's control unit.

Programming the Water Softener

Set Present Time of Day

Step-by-step instructions for setting the correct time on the control panel.

Setting Water Hardness and Recharge Time

Set Water Hardness Number

How to input the water's hardness level, including adjustments for iron content.

Set Recharge (Regeneration) Start Time

Procedure for selecting the optimal time for the softener to regenerate.

Controller Features

Salt Monitor System

Optional Controller Settings

Salt Efficiency and Clean Feature

Advanced Controller Settings

Routine Maintenance

Adding Salt

Guidance on checking and refilling the salt storage tank with the correct type of salt.

Breaking a Salt Bridge

Maintenance and Protection Procedures

Cleaning the Nozzle & Venturi

Instructions for cleaning the nozzle and venturi assembly for proper brine suction.

Protect the Water Softener from Freezing

Steps to drain the softener to prevent damage from freezing temperatures.

Troubleshooting Common Issues

No Soft Water

Addresses causes and solutions for the unit not producing soft water.

Water Hardness Issues

Iron in Water

Error Codes E1, E3, E4, E5

Advanced Troubleshooting and Reset

Manually Initiated Electronic Diagnostics

Steps to access and interpret diagnostic data from the controller.

Turbine Operation Check

Resetting to Factory Defaults

Guide to restoring the controller settings to their original factory configuration.

Manual Advance Regeneration Check

Wiring Schematic

North Star NSC22 Specifications

General IconGeneral
BrandNorth Star
ModelNSC22
CategoryWater Dispenser
LanguageEnglish

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