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Bradford White ECO-DEFENDER Series User Manual

Bradford White ECO-DEFENDER Series
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Manual 238-51546-00B REV 10/18
SERVICE
MANUAL
Troubleshooting Guide
and Instructions for Service
(To be performed ONLY by
qualified service providers)
Models Covered
by This Manual:
URG230T*N
URG240S*N
URG240T*N
URG250L*N
URG250H*N
URG250T*N
URG250S*N
URG130T*N
URG140T*N
URG150T*N
(*) Denotes Warranty Years
Flammable Vapor Ignition Resistant
Water Heaters
Ultra Low NOx Gas Water Heaters
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Bradford White ECO-DEFENDER Series Specifications

General IconGeneral
Capacity40-50 Gallons
Energy EfficiencyHigh Efficiency
Ignition TypeElectronic Ignition
Fuel TypeNatural Gas or Propane
TypeGas Water Heater
TechnologyECO-DEFENDER
Energy Factor0.67
Recovery RateVaries by model
Weight150 lbs (approximate)

Summary

Service Manual Introduction

Models Covered by This Manual

Lists the specific water heater models included in this service manual.

Safety and Precautions

General Safety Warnings

Provides essential safety warnings regarding flammable vapors, gas leaks, and proper handling.

ECO-DEFENDER System Overview

Introduction

Introduces the Bradford White ECO-DEFENDER Safety System and its purpose.

How the Safety System Works

Explains the functionality of the ECO-DEFENDER Safety System during normal and abnormal conditions.

Manual Usage and Tools

How to Use This Manual

Provides guidance on effectively using the service manual for troubleshooting and repair.

Tools Required for Service

Lists essential tools and equipment required for performing service on the water heaters.

Troubleshooting Guide V1

LED Status Codes V1 (Page 6)

Details LED status codes, control status, probable causes, and service procedures for V1.

Troubleshooting Guide V1 (Continued)

LED Status Codes V1 (Page 7)

Continues the troubleshooting table for V1 with additional LED status codes and solutions.

Troubleshooting Guide V2

LED Status Codes V2 (Green/Yellow/Red)

Explains LED status codes, control status, probable causes, and service for V2 using colored LEDs.

Troubleshooting Guide V2 (Continued)

LED Status Codes V2 (Red)

Continues the troubleshooting table for V2, focusing on red LED fault codes and their resolutions.

ED Service Procedure I: Burner Operation

Burner Inspection

Details how to visually inspect the pilot and main burner for debris and proper flame.

Burner Cleaning

Outlines steps for safely cleaning the burner assembly and its components.

ED Service Procedure I: Burner Operation (cont.)

Burner Cleaning (cont.)

Continues the step-by-step guide for cleaning the burner assembly and its parts.

ED Service Procedure II: Pilot Inspection

Pilot Inspection, Testing and Replacement

Provides comprehensive steps for inspecting, testing, and replacing the pilot assembly.

ED Service Procedure III: Gas Control

Line Pressure and Manifold Pressure Testing

Explains how to test line pressure and manifold pressure for the gas control.

ED Service Procedure III: Gas Control (cont.)

Determine Water Temperature Inside Tank

Describes how to accurately measure the water temperature inside the tank for calibration checks.

ED Service Procedure III: Gas Control (cont.)

Gas Control Removal from Water Heater

Details the step-by-step process for removing and installing the gas control unit.

ED Service Procedure IV: Chamber Sensor

Chamber Sensor Testing

Outlines the procedure for testing the chamber door temperature sensor resistance and continuity.

ED Service Procedure V: Thermopile

Thermopile Testing

Explains both closed and open circuit testing methods for the thermopile.

ED Service Procedure VI: Igniter/Electrode

Igniter, Electrode Testing and Replacement

Details how to test the igniter and electrode for proper sparking and function.

ED Service Procedure VII: Resettable Thermal Switch

Resettable Thermal Switch Testing and Replacement

Describes how to test the resettable thermal switch for continuity and potential reset.

ED Service Procedure VII: Resettable Thermal Switch (cont.)

Resettable Thermal Switch Testing and Replacement (cont.)

Continues the procedure for replacing the resettable thermal switch.

ED Service Procedure VIII: Dip Tube

Diptube Inspection & Replacement

Details the process for inspecting and replacing the water inlet dip tube.

ED Service Procedure IX: Anode Inspection

Anode Inspection & Replacement

Outlines the steps for inspecting and replacing the anode rod.

ED Service Procedure X: Inner Door/Gasket

Inner Door Removal Procedure

Provides instructions for removing the inner door and inspecting its gasket.

ED Service Procedure X: Inner Door/Gasket (cont.)

Inner Door Gasket Replacement Procedure

Details the process for removing old gasket and applying new RTV sealant for the inner door.

ED Service Procedure X: Inner Door/Gasket (cont.)

Installation of Inner Door with Gasket

Explains how to correctly install the inner door with gasket for proper sealing.

ED Service Procedure XI: Flue Baffle

Flue Baffle Inspection and Replacement

Details the procedure for inspecting, cleaning, and replacing the flue baffle.

ScreenLok® Flame Arrestor Cleaning

ScreenLok® Flame Arrestor Cleaning

Provides instructions for cleaning the ScreenLok® Flame Arrestor.

Glossary of Terms

Glossary of Terms

Provides definitions for various technical terms used in the manual.

Parts List

Parts List

Lists and illustrates all available replacement parts for the water heater.

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