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Pure Water PW90 - User Manual

Pure Water PW90
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Service Manual
PW90
(Sani-Twist™
Filter
Manifold)
© Copyright 2021 Pure Water Technology
630 Allendale Rd Suite 200 · King of Prussia, PA 19406 · 855-474-7934
support@purewatertech.com

Table of Contents

Other manuals for Pure Water PW90

Preview: Field Guide
Field Guide26 pages
Preview: Programming Guide
Programming Guide13 pages

Questions and Answers

  • M
    Melissa HarrisAug 4, 2025
    What to do if my Pure Water Water Filtration System has no water?
    • M
      Mark WilkersonAug 4, 2025
      If your Pure Water Water Filtration System isn't dispensing any water, several factors could be at play. First, ensure the system is properly plugged in and the water supply is turned on. Clogged filters can also restrict water flow, so consider replacing the sediment and pre-carbon filters. If you hear no click when pushing the cold button, check fuse F1. Additionally, verify that the fill sensor isn't stuck in the "up" position. Finally, assess whether overuse has exceeded the system's flow rate to the reservoir.
  • M
    Mr. Kevin MartinAug 8, 2025
    How to troubleshoot no power in my Pure Water Water Filtration System?
    • M
      Micheal LinAug 8, 2025
      If your Pure Water Water Filtration System isn't powering on, start by ensuring it's properly plugged into a functioning outlet. Check the power to the outlet. If the issue persists, inspect fuses F2 and F3 on the circuit board, as a blown fuse could be the culprit.
  • J
    Joanna FloresAug 13, 2025
    Why is my Pure Water Water Filtration System not cooling?
    • M
      Michelle WoodAug 13, 2025
      If your Pure Water Water Filtration System isn't cooling water, first, make sure the system is plugged in. If it is, the cold control might not be turning on the compressor; in this case, consider replacing the cold control. If these steps don't resolve the issue, refrigerant loss might be the cause, and you should contact a service center.
  • S
    sandranelsonAug 18, 2025
    What to do if my Pure Water Water Filtration System has a leak detector alarm?
    • J
      John BrownAug 18, 2025
      If you're experiencing a leak detector alarm with your Pure Water Water Filtration System, the issue might stem from an external water source, such as a mopped floor. Inspect the unit and the leak detector pad for any leaks or external water. Dry the leak detector pad, then unplug the system, and plug it back in.
  • M
    Michael PatrickAug 23, 2025
    Why is my Pure Water Water Filtration System not dispensing enough water?
    • J
      Jasmine LeonardAug 23, 2025
      If your Pure Water Water Filtration System isn't dispensing enough water, it could be due to clogged filters. Try replacing the sediment and pre-carbon filters. Also, consider whether overuse has exceeded the system's flow rate to the reservoir. Check the flow rate to the reservoir; if it's correct, then usage has exceeded the flow.
  • R
    Rebekah CruzAug 28, 2025
    What causes reservoir overflows in Pure Water PW90 Water Filtration Systems?
    • A
      Ashley RobinsonAug 28, 2025
      If the reservoir in your Pure Water Water Filtration System is overflowing, the fill valve might be stuck open. Check both the fill valve and the fill sensor. Also, ensure the fill sensor slides freely on its stem, as a stuck sensor can also cause the reservoir to overfill.

Summary

Conditions for Use

Source Water Supply

Details on potable water, system pressure, and temperature requirements.

Environmental Conditions

Requirements for installation areas regarding environmental factors.

Compliance

Mandates for installation and service by qualified personnel.

System Overview

PW90 R Configuration

Details the filters and features of the PW90R model.

PW90 M Configuration

Details the filters and features of the PW90M model.

Receiving Your Equipment

Handling Shipping Damage

Procedures for reporting and documenting freight damage.

Safety Precautions

Power System Specifications

Information on available operating voltages and frequencies.

General Safety Warnings

Covers warnings on water quality, pressure, electrical, hot water, and environmental exposure.

System Handling and Maintenance Safety

Safety procedures for extended non-use and stability.

Pre-Installation Preparation

Flushing the PW90 RO System

Step-by-step guide for flushing the RO filter configuration.

Flushing the PW90 M System

Step-by-step guide for flushing the PW90 M filter configuration.

Flushing the Complete System

Procedure for flushing the entire system, checking leaks and flow.

Final Inspection

Post-Installation Verification Checks

Verifies system integrity, temperatures, water flow, and component placement.

General Handling and Operation Notes

Guidelines for system operation after flushing, moving, and storage.

Installation Procedures

System Installation Steps

Comprehensive steps for installing the water cooler system.

Connecting Water Supply and Drain Lines

Details on connecting water supply, drain lines, air gaps, and restrictors.

Dispensing Water Instructions

How to dispense cold and hot water from the unit.

Filter Changing Procedure

Filter Replacement Steps

Steps for verifying, disposing, and replacing filters.

System Inspection During Service

Service Inspection Checklist

A list of items to check during system servicing.

Filter Light Reset Procedure

Resetting Filter Indicator Lights

Step-by-step guide to reset filter indicator lights using sensors.

Part Diagrams

Electrical Wiring Diagram

Diagram illustrating the electrical connections of the system.

PCB Diagram

Diagram of the main and display Printed Circuit Board.

Water Flow Diagrams

Diagrams showing the water flow paths for PW90 models.

Exploded View Diagram

Exploded view showing the assembly of system components.

Wiring Diagram

Water Flow Diagram (PW90-R)

Water Flow Diagram (PW90-M)

Exploded View

Front Upper Assembly Diagram

Drip Tray Assembly Diagram

Front Lower Assembly Diagram

Cold Tank Lid Assembly Diagram

Hot Tank Assembly Diagram

Filter Box Assembly Diagram (RO Model)

Filter Box Assembly Diagram (MF Model)

Specifications

115 V PW90 Water Cooler Specifications

Detailed specifications including voltage, size, weight, and capacity.

Troubleshooting Guide

Troubleshooting Common Problems

Guide to diagnose and resolve common issues like no power or no water.

Error Code Reference

List of error codes and their corresponding references.

Product Limited Warranty

Domestic Initial Limited Warranty

Details the one-year warranty for parts and labor.

Additional Fifth Year Compressor Warranty

Covers compressor replacement for five years if proven defective.

Warranty Provisions and Exclusions

Outlines conditions, limitations, and exclusions of the warranty.

Export Warranty Details

Warranty Procedure

Required Information for Warranty Claims

List of essential details needed for warranty evaluation.

Warranty Claim Process

Steps for submitting and processing a warranty claim.

Pure Water PW90 Specifications

General IconGeneral
BrandPure Water
ModelPW90
CategoryWater Filtration Systems
LanguageEnglish

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