Bradford White HE-4-50S6FSX - Manual (Page 2)

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Table of Contents
Section Page
Introduction ______________________________________________ 5
How to Use this Manual _____________________________________ 6
Tools Required for Service ___________________________________ 6
Specifications_____________________________________________ 7
Sequence of Operation _____________________________________ 9
Power
Up Sequence
Normal Heating Sequence
Abnormal Operation
Troubleshooting __________________________________________ 13
Burner Maintenance _______________________________________ 15
Burner
Inspection
Burner Cleaning Procedure
Pilot Maintenance_________________________________________ 17
Pilot Inspection, Testing and Replacement
Blower Replacement ______________________________________ 19
Temperature Sensor Testing ________________________________ 21
Determine Water Temperature Inside Tank ____________________ 23
Gas Control Removal ______________________________________ 25
Gas Control Disassembly/Assembly __________________________ 26
Flammable Vapor Sensor Testing ____________________________ 27
120 VAC Circuit Trace _____________________________________ 28
Diptube Inspection _______________________________________ 28
Anode Inspection _________________________________________ 29
Blower Removal __________________________________________ 30
Inner Door Removal ______________________________________ 32
Inner Door Gasket Replacement _____________________________ 33
Inner Door Installation ____________________________________ 34
Pressure Switch Testing & Replacement _______________________ 35
Arrestor Cleaning _________________________________________ 37
Common Terms __________________________________________ 38
Notes __________________________________________________ 38
Parts List _______________________________________________ 39
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