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Bradford-White Corp
Eco Defender warranty Email parts@bradfordwhite.com techserv@bradfordwhite.com
Models:
U130T*FRN
Eco Defender
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Install
Thermopile Replacement
Warranty
Left Side of Wire Harness
Resettable Thermal Switch Continuity Testing
a Remove 7/16 nut from bottom of pilot assembly
Service Procedure
necessary precaution to prevent personal injury BURNER CLEANING
Determine Water Temperature Inside Tank
How to
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Email
parts@bradfordwhite.com
techserv@bradfordwhite.com
www.bradfordwhite.com
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Contents
To be performed ONLY by qualified service providers
U1503*FRNU1XR403S*FRN Denotes Warranty Years
The Bradford White
Save this manual for future reference
The Bradford White
Ultra Low NOx Gas Water Heaters
INTRODUCTION
How the Safety System Works
How to Use This Manual
Service Procedure
LED Status
Probable Cause
Control Status
LED Status
Service Procedure
Probable Cause
Inner Door Removal Procedure
Material left on combustion chamber around opening
Installation of Inner Door With Gasket
Inner Door Gasket Replacement Procedure
place. DO NOT OVER TIGHTEN SCREWS
Step 15. Replace outer jacket burner access door
OPEN CIRCUIT THERMOPILE TESTING
CLOSED CIRCUIT THERMOPILE TESTING Honeywell Control
Left Side of Wire Harness
Gas Control Knob Shown In “OFF” Position
THERMOPILE REPLACEMENT
Thermopile Position
a Remove 7/16 nut from bottom of pilot assembly
PILOT/ELECTRODE ASSEMBLY INSPECTION CLEANING AND REPLACEMENT
a Primary air openings for blockage. Must be free
IGNITER, ELECTRODE TESTING AND REPLACEMENT
Igniter Lead
Thermal Well Testing
Thermal well testing
Observe heater operation. If control
see page
Take necessary precaution to prevent personal injury
Determine Water Temperature Inside Tank
Sensor Resistance at Various Temperatures
Gas Control Removal From Thermal Well
Gas Control & Thermal Well Removal From Water Heater
Gas Control
Gas Control Assembly to Thermal Well
Sensor Resistance at Various Temperatures
CHAMBER SENSOR TESTING
Step 1. Turn the gas control knob to the “OFF” position
necessary precaution to prevent personal injury BURNER CLEANING
MAIN BURNER Inspection Cleaning and Replacement
DANGER
BURNER CLEANING Cont
RESETTABLE THERMAL SWITCH CONTINUITY TESTING
PROBABLE CAUSE FOR RESETTABLE THERMAL SWITCH ACTIVATION
PROBABLE CAUSE
CORRECTIVE ACTION
RESETTABLE THERMAL SWITCH REPLACEMENT
DO NOT OVER TIGHTEN SCREWS
ScreenLok Flame Arrestor Cleaning
DIP TUBE INSPECTION AND REPLACEMENT
ANODE INSPECTION AND REPLACEMENT
this procedure. Take necessary precaution to prevent personal injury
11 Outer Door 12 Draft Diverter 13 Complete Burner Assembly
14 RN Burner and Door 15 Flexible Gas Feed Line 16 Pilot Assembly
17 Screw #8-18 x ½ Hex Washer Head 18 Resettable Thermal Switch
26 Wire Tie 27 ASSE Approved Mixing Valve Optional 28 Thermopile
Page
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