Pure Water PW90R User Manual (English)

Questions and Answers:

D
David FrancoJul 25, 2025
What to do if my Pure Water Water Filtration System has no water?
- G
  Gary DavisJul 25, 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.
J
Julie WillisJul 31, 2025
How to troubleshoot no power in my Pure Water Water Filtration System?
- J
  Joshua MuellerJul 31, 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.
C
Carolyn DixonAug 4, 2025
Why is my Pure Water Water Filtration System not cooling?
- C
  Cynthia AdkinsAug 4, 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.
K
Kimberly CarrilloAug 9, 2025
What to do if my Pure Water Water Filtration System has a leak detector alarm?
- B
  bakervincentAug 10, 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.
C
codyhoweAug 14, 2025
Why is my Pure Water Water Filtration System not dispensing enough water?
- D
  Dr. Michael Perry DVMAug 14, 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.
M
Maria SerranoAug 20, 2025
What causes reservoir overflows in Pure Water PW90R Water Filtration Systems?
- J
  Jessica FarrellAug 20, 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.

Pure Water PW90R Specifications

General

Stages	5
Type	Reverse Osmosis
Filtration Technology	Reverse Osmosis
Stages of Filtration	Sediment Filter, Reverse Osmosis Membrane, Post-Carbon Filter
Filter Life	6-12 months
Included Components	filters, faucet, installation kit

Summary

Conditions for Use

System Overview

PW90R Configuration

Details the filters and ozonation process for the PW90R model.

PW90M Configuration

Details the filters and ozonation process for the PW90M model.

Receiving Your Equipment

Safety Precautions

Microbiologically Unsafe Water Warning

Do not use with microbiologically unsafe or unknown quality water without disinfection.

Pressure Regulator Warning

A pressure regulator is mandatory if water pressure exceeds 100 PSIG.

Refrigerant Safety Warning

Repairs to the refrigeration system require a certified technician.

Extreme Elements Warning

Do not expose the system to rain or other extreme elements.

Power System Specifications

Details available operating voltages and frequencies for the system.

Electrical Hazard Caution

Do not use with non-specified power sources; handle leaks carefully.

Hot Water Safety Warning

Hot water is extremely hot and can cause serious injury.

Extended Non-Use Procedure

Drain and sanitize the system if not used for extended periods.

System Placement Warning

Do not place heavy items on the system to prevent injury or fire hazards.

Pre-Installation Preparation

Sani-Twist Filter Flushing Procedures

Procedures for flushing filters prior to installation.

Flushing the PW90 RO System

Step-by-step instructions for flushing the PW90 RO system.

Flushing the PW90 M Filters

Step-by-step instructions for flushing the PW90 M filters.

Flushing the Complete System

Procedures for flushing the entire system after installation.

Final Inspection

Verification steps after system installation and flushing.

Installation Procedures

Plumbing Code Compliance

Emphasizes checking local plumbing codes for compliance.

Service and Filter Change Procedures

Filter Changing Procedure

Steps for verifying, flushing, and disposing of filters during replacement.

System Inspection Checklist

Items to check during filter changes or general service.

Filter Light Reset Procedure

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

Part Diagrams

Electrical Wiring Diagram

Diagram illustrating the electrical connections of the PW90 system.

PCB Diagram

Diagram of the main and display Printed Circuit Board (PCB).

Water Flow Diagrams

Diagrams showing water flow for PW90 and PW90R models.

Exploded View Diagram

Exploded view illustrating the assembly of the PW90 system components.

Specifications

Pressure and Water Quality Warning

Warnings regarding water pressure limits and water quality for safe operation.

Troubleshooting Guide

Error Codes

List of error codes and their corresponding references for troubleshooting.

Product Limited Warranty

Domestic Initial Limited Warranty

Covers repair or replacement of parts for one year from shipment date.

Additional Fifth Year Warranty

Provides a new compressor if proven defective within five years.

General Provisions and Exclusions

Details warranty applicability, exclusions, and conditions.

Warranty Voiding Conditions

States warranty is void if the machine is altered or modified.

Export Warranty Details

Outlines the export warranty terms, mirroring domestic warranty with exceptions.

Warranty Procedure

Warranty Evaluation Process

Steps for contacting support, providing information, and processing claims.

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Table of Contents