A.O. Smith G12-UFDT5040NV - User Manual

A.O. Smith G12-UFDT5040NV

A.O. Smith G12-UFDT5040NV Water Heater – User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Loading the manual

100366637_ 2000622613_REV. A

Residential Gas

Water Heater

Installation Instructions 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.

Residential Atmospheric Ultra Low Nox Gas Water Heater

with the Flammable Vapor Ignition Resistant

(FVIR)

Safety System

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 difficulty following the directions, or

aren’t sure you can safely and properly do any of this work yourself:

• Call our Technical Assistance Hotline at 1-877-817-6750 or visit

http:// www.AOS

-

mithAtLowes.com

.

We can help you with installation, operations, troubleshooting,

or maintenance. Before you call, write down the model and serial number from the

water heater’s data plate.

Incorrect installation, operation, or service can damage the water heater, your house

and other property, and present risks including fire, scalding, electric shock, and

explosion, causing serious injury or death.

Do not store or use gasoline or other

flammable 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 neighbor’s phone. Follow the

gas supplier’s instructions.

• If you cannot reach your gas sup

-

plier, call the fire department.

Installation and service must be per

-

formed by a qualified installer, service

agency or the gas supplier.

WARNING: If the information in

these instructions is not followed

exactly, a fire or explosion may

result causing property damage,

personal injury or death.

LOW LEAD

CONTENT

Table of Contents

Page

IMPORTANT SAFETY INFORMATION ............................................. 3
GETTING STARTED ........................................................................ 7
INSTALLATION ............................................................................. 14
OPERATION ................................................................................. 23
TROUBLESHOOTING ................................................................... 25
MAINTENANCE ........................................................................... 31
REPAIR PARTS ............................................................................. 37
NOTES ......................................................................................... 38

February 2023

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