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GE GXRQ18NBN - User Manual

GE GXRQ18NBN
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GE is a trademark of the General Electric Company. Manufactured under trademark license.
Systems tested and certified by NSF
International against NSF/ANSI
Standards 58 and 42 for the
reduction of claims as specified on
the Performance Data Sheet
REVERSE OSMOSIS
FILTRATION SYSTEM
SAFETY INFORMATION . . . . . . . . 3
SPECIFICATIONS . . . . . . . . . . . . . . 5
USING THE REVERSE
OSMOSIS SYSTEM. . . . . . . . . . . . . 6
INSTALLATION INSTRUCTIONS
Tools and Materials Required . . . . . . . . . . 8
Before Beginning Installation . . . . . . . . . . 9
Plan the Installation. . . . . . . . . . . . . . . . . 10
Feed Water Supply . . . . . . . . . . . . . . . . . 11
Drain Adapter . . . . . . . . . . . . . . . . . . . . . 12
Storage Tank and Faucet . . . . . . . . . . . . 14
Faucet Electronics. . . . . . . . . . . . . . . . . . 15
Connect Tubes . . . . . . . . . . . . . . . . . . . . 16
Sanitize the System . . . . . . . . . . . . . . . . 18
Test and Purge the System. . . . . . . . . . . 19
CARE AND CLEANING
Cartridge Life and Replacement . . . . . . . 20
Change Faucet Battery . . . . . . . . . . . . . . 21
Drain Flow Control . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING TIPS . . . 23
PARTS LIST . . . . . . . . . . . . . . . . . . . 24
WARRANTY . . . . . . . . . . . . . . . . . . . 26
CONSUMER SUPPORT . . . . . . . 28
OWNER’S MANUAL
& INSTALLATION
INSTRUCTIONS
ENGLISH
GXRQ18NBN
GNRQ18NBN
Write the model and serial numbers here:
Model # __________________________
Serial # __________________________
You can find them on the bracket.
Systems certified by IAPMO R&T
against NSF/ ANSI Standards
42, 53, 58, 401 and P473 for the
reduction of claims as specified
on the Performance Data Sheet.
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Table of Contents

Questions and Answers

  • A
    amy06Aug 14, 2025
    Why does my GE Water Filtration System have chlorine taste and/or odor?
    • R
      Rachael SmithAug 14, 2025
      The chlorine taste or odor in your GE Water Filtration System's water may occur because the chlorine level in your water supply exceeds the system's limits, potentially damaging the reverse osmosis membrane. If your water supply has more than 2.0 ppm of chlorine, you'll need additional filtering before it reaches the reverse osmosis system. Another reason may be that the prefilter is no longer reducing chlorine from the water supply, so replace the reverse osmosis membrane cartridge, prefilter, postfilter, and the battery in the faucet handle.
  • S
    Shannon KennedyAug 17, 2025
    What to do if my GE Water Filtration System makes product water slowly?
    • R
      Randy BarberAug 17, 2025
      It's normal for GE Water Filtration Systems to produce water slowly compared to a regular faucet, as it takes several hours to fill the tank. However, if the water supply to the system isn't within specifications, increase the water pressure or precondition the water as needed. Another cause could be a prefilter cartridge plugged with sediments, so replace the prefilter. If the rate doesn't increase, replace the postfilter, reverse osmosis membrane cartridge, and the battery in the faucet handle. Also, the reverse osmosis membrane could be plugged with sediments, so replace the reverse osmosis membrane cartridge and the battery in the faucet handle.
  • J
    jessicaschroederAug 20, 2025
    What to do if my GE Water Filtration System has other taste and/or odor?
    • A
      alvareznicholasAug 21, 2025
      If your GE Water Filtration System water has an unusual taste or odor, it might be because high-quality product water can taste different than what you're used to, which is normal. Low water usage can also be a factor; completely drain the system and allow it to refill. Contamination in the product water storage is another possible cause, so use the sanitizing procedure. Lastly, the prefilter and postfilter may need changing; replace them and sanitize the system.
  • D
    Derek RodriguezAug 25, 2025
    Why is my GE Water Filtration System leaking from the faucet air gap hole?
    • H
      hectorjamesAug 25, 2025
      If your GE Water Filtration System is leaking from the faucet air gap hole, it's likely because the drain side of the faucet air gap (3/8” tubing) is plugged, restricted, or incorrectly connected to the drain. Inspect and eliminate any restrictions or plugs. Ensure there are no dips, loops, or low spots in the drain line from the faucet air gap to the drain pipe. If a drain line adapter was used as the drain point, periodic inspection and cleaning is recommended.
  • R
    Ray GrahamAug 27, 2025
    Why is there no water coming from my GE Water Filtration System?
    • S
      Stephen WilsonAug 27, 2025
      If your GE Water Filtration System isn't dispensing water, first ensure that the water supply valve is turned on. Also, after a filter change, remember that it takes several hours for the RO system to provide enough water to fill the tank.
  • G
    Gabriel CunninghamAug 31, 2025
    How to fix leaks at fittings in GE Water Filtration Systems?
    • E
      Emily OneillAug 31, 2025
      If you notice leaks at the fittings of your GE Water Filtration System, it's likely due to improper installation. Reinstall the system.
  • A
    Alec MarquezSep 3, 2025
    Why does my GE Water Filtration System have air bubbles and is cloudy?
    • D
      David HolmesSep 3, 2025
      If the water from your GE Water Filtration System has air bubbles and appears cloudy, it's likely due to air in the system after installation. This should resolve itself after the system runs for a while.
  • A
    andrea10Sep 6, 2025
    Why is the indicator light on my GE Water Filtration Systems faucet handle not working?
    • U
      upowellSep 6, 2025
      If the indicator light on your GE Water Filtration System's faucet handle isn't working, it could be due to the battery being installed incorrectly. Check the orientation and install it correctly. Alternatively, the battery may be dead; replace it with a new Lithium CR 2032, 3-volt battery.
  • J
    Jonathan BeanSep 9, 2025
    What are the normal sounds I may hear from my GE Water Filtration System?
    • B
      barnesjenniferSep 9, 2025
      The sounds you may hear from your GE Water Filtration System include sink drain sounds and drain water from the system, which is normal. You might also hear faucet air gap drain water flowing through the faucet air gap, especially if you have high-pressure water supply, generally 80 psi or greater. If this is the case, install a pressure regulator in the house water supply system to reduce the pressure below 80 psi.

Summary

SAFETY INFORMATION

Important Safety Information

Read all instructions before using the appliance to ensure safe operation.

Safety Precautions

Key safety measures and warnings to prevent hazards during installation and use.

Chemical Burn Hazard Warning

Warning about handling lithium button cell batteries and keeping them away from children.

Sanitizer Ingestion Risk

Instructions for flushing sanitizer from the system before first use.

Additional Safety Precautions

Additional safety precautions, including handling perchlorate material and system care.

System Non-Use Procedure

Procedure for handling the system if it has not been used for a week or more.

Water Leakage Damage Prevention

Precautions to prevent property damage caused by water leaks during installation and operation.

SPECIFICATIONS

System Specifications

Technical specifications for the RO system models GXRQ18NBN and GNRQ18NBN.

Physical Dimensions

Physical dimensions of the Reverse Osmosis system components.

USING THE REVERSE OSMOSIS SYSTEM

How the System Works

Explanation of the RO system's filtration process and component functions.

System Component Descriptions

Detailed description of each component: prefilter, RO cartridge, storage tank, postfilter.

Faucet Operation and Electronics

Information on the RO faucet, its timer, LED indicators, and shutoff features.

INSTALLATION INSTRUCTIONS

Before Installation Begins

Important initial steps and notes for installers and consumers before starting installation.

Required Tools and Materials

List of tools and materials needed for installing the Reverse Osmosis system.

Included System Components

List of items that are included with the Reverse Osmosis system.

Installation Planning and Requirements

Guidance on location, feed water, drain, and faucet setup before installation.

Installation Location and Preparation

Guidance on choosing installation locations and preparing the system.

Connecting the Feed Water Supply

Instructions for connecting the cold water supply to the RO system.

Drain Adapter Installation (Under Sink)

Instructions for installing the drain adapter for under sink setups.

Alternative Drain Installation (Remote)

Instructions for drain installation when the system is located remotely.

Storage Tank and Faucet Installation

Instructions for installing the storage tank and the product water faucet.

Faucet Electronics and Timer Setup

Information about the faucet's battery-operated timer and LED indicators.

Connecting System Tubing

Instructions on cutting and connecting tubing for the RO system.

Connecting Remaining Tubing

Steps to connect the blue and black tubes to the RO assembly and drain adapter.

SANITIZE THE SYSTEM

System Sanitization Procedure

Recommended procedure for sanitizing the RO system after installation or servicing.

Optional Sanitizing Kit Information

Information about an optional kit for easier and complete system sanitization.

SYSTEM TESTING AND PURGING

Pressure Testing the System

Procedure to check for leaks and pressure buildup in the system after installation.

Purging the System for Use

Steps to purge the system, including running water for 24 hours.

System Operating Features

Overview of key operating features and performance characteristics of the RO system.

CARE AND CLEANING

Filter Cartridge Maintenance

Information on the lifespan and replacement of prefilter, postfilter, and RO membrane cartridges.

TROUBLESHOOTING TIPS

Problem Diagnosis and Solutions

Guide to diagnose and resolve common problems with the RO system.

PARTS LIST

System Component Diagram

Visual diagram identifying all parts of the Reverse Osmosis system.

Parts Catalog and Numbers

Detailed catalog of GE Appliances parts numbers and descriptions for the system.

WARRANTY INFORMATION

GE Appliances System Warranty Details

Details of the warranty coverage, what is covered, and what is excluded.

Warranty Exclusions

List of conditions and circumstances not covered by the warranty.

Implied Warranties and Legal Rights

Information regarding the limitation of implied warranties and legal rights.

CONSUMER SUPPORT OPTIONS

Consumer Support Services

Accessing GE Appliances website, registering, scheduling service, warranties, parts, and contact information.

GE GXRQ18NBN Specifications

General IconGeneral
Model NumberGXRQ18NBN
BrandGE
Product TypeWater Filtration System
CategoryWater Filtration Systems
ColorWhite

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