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A.O. Smith G6-PDT5045NV - User Manual

A.O. Smith G6-PDT5045NV
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Installaon Instrucons and
Use & Care Guide
Keep this manual in the pocket on heater for future reference whenever maintenance, adjustment or service is required.
Retain your original receipt as proof of purchase.
DO NOT RETURN THIS UNIT TO THE STORE
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have diculty following the direcons, or
aren’t sure you can safely and properly do any of this work yourself:
Call your Local plumbing supplies store to have this water heater installed.
Professional Installaon is available for this product and the work is guaranteed.
Schedule an appointment with a qualied person to install your water heater.
• Call our Technical Assistance Hotline which is listed on the water heater’s
warranty sheet. We can help you with installaon, operaons, troubleshoong,
or maintenance. Before you call, write down the model and serial number from
the water heater’s data plate.
Incorrect installaon, operaon, or service can damage the water heater, your
house and other property, and present risks including re, scalding, electric shock,
and explosion, causing serious injury or death.
Residenal Gas
Water Heater
Residenal Direct Vented Gas Water Heater
Not for use in Manufactured (Mobile) Homes
100369451_2000626161_REV.A
Do not store or use gasoline or other
ammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch;
do not use any phone in your build-
ing.
Immediately call your gas supplier
from a neighbors phone. Follow the
gas suppliers instrucons.
If you cannot reach your gas suppli-
er, call the re department.
Installaon and service must be per-
formed by a qualied installer, service
agency or the gas supplier.
WARNING: If the informaon in
these instrucons is not followed
exactly, a re or explosion may
result causing property damage,
personal injury or death.
LOW LEAD
C
O
NTENT
June, 2023
Table of Contents
Important Safety Informaon .................................................. 3
Geng Started ........................................................................ 7
Installaon ............................................................................. 15
Operaon .............................................................................. 24
Troubleshoong .................................................................... 26
Maintenance ......................................................................... 30
Repair Parts ........................................................................... 33
Notes .................................................................................. 35

Questions and Answers

  • R
    rogersryanAug 10, 2025
    Why A.O. Smith G6-PDT5045NV Water Heater no hot water?
    • K
      Kristen CamposAug 10, 2025
      If you're not getting any hot water from your A.O. Smith Water Heater, and you see a spark, ensure the gas supply valve is turned on and attempt to light the pilot. If the pilot still doesn't light, it's best to call a qualified person. Also, check if the Status Light is flashing once every three seconds; if so, make sure the gas control knob is set to HOT. If the Status Light flashes more than once every three seconds, refer to the Status Light Code Troubleshooting. If the Status Light isn't flashing at all, proceed to Checking the Pilot Light.
  • D
    Debbie FarrellAug 30, 2025
    How to troubleshoot low water pressure in A.O. Smith G6-PDT5045NV Water Heater?
    • J
      Jason FreemanAug 30, 2025
      To troubleshoot low water pressure with your A.O. Smith Water Heater, first check both the cold and hot water at a sink to determine if the lower pressure is only on the hot water side. If so, the heat traps or dip tube may have melted, in which case you should replace them. Also, ensure the water heater’s supply valve is fully open. A partially closed valve can restrict water flow.
  • H
    Helen WhiteNov 19, 2025
    What to do if A.O. Smith G6-PDT5045NV has insufficient hot water?
    • T
      Tara SuarezNov 19, 2025
      If your A.O. Smith Water Heater isn't providing enough hot water, or it's slow to recover, start by checking other faucets in the house for hot water to rule out a faulty thermostatic mixing valve in a faucet or shower control. If the water heater is old, consider replacing it with a larger model. Also, ensure the hot and cold water connections are correct and that your home’s hot water pipe is connected to the hot water outlet on the water heater. The dip tube may have melted. The dip tube is a long, plastic tube inside the tank attached to the cold water inlet. If the dip tube has melted, it can be replaced by removing the cold water inlet connection, removing the old dip tube and installing a new one. Make sure to locate and repair any plumbing leaks. Lastly, sediment or lime buildup in...

Summary

IMPORTANT SAFETY INFORMATION

Installation, Operation, and Fire;Explosion Risks

Covers risks during installation, operation, gas pressure, fire, explosion, and water contamination.

GETTING STARTED

Confined Spaces and Gas Piping

Covers installing in confined spaces, gas line installation, and pressure checks.

INSTALLATION

New Water Heater Installation and Connections

Guides on positioning, connecting T&P valve, water supply, vent pipe, and gas lines.

Final Installation Checks

A comprehensive checklist for all systems before lighting the water heater.

OPERATION

Lighting, Shutdown, and Emergency Procedures

Step-by-step guides for safely lighting, shutting down, and emergency procedures.

TROUBLESHOOTING

No Hot Water and Recovery Issues

Diagnosing and resolving problems related to lack of or insufficient hot water.

MAINTENANCE

A.O. Smith G6-PDT5045NV Specifications

General IconGeneral
BrandA.O. Smith
ModelG6-PDT5045NV
CategoryWater Heater
TypeTank
Fuel TypeNatural Gas
Capacity50 gallons
Energy Factor0.67
Warranty6 years

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