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The Bradford White
UPV75 Series
Through-The-Wall Gas Water Heaters
Table of Contents
Page UPV75 Service
Procedure
Introduction .............................................................................................................4
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How to Use This Manual ........................................................................................5
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Tools Required for Service ....................................................................................5
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Specifications .........................................................................................................6
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Control Timings ......................................................................................................8
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Sequence of Operation ..........................................................................................9
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Troubleshooting ......................................................................................................12
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Burner Operation Inspection, Cleaning & Replacement .......................................14
I
Pilot Inspection, Testing & Replacement ...............................................................16
II
Pressure Switch Testing & Replacement ..............................................................18
III
Blower Testing & Replacement .............................................................................20
IV
Replacement Wire Harness Installation ................................................................22
V
Blower Temperature Switch Testing & Replacement ...........................................24
VI
Gas Control Testing & Replacement .....................................................................26
VII
Simulative Resistance Device Testing ..................................................................29
VIII
Safety Circuit Voltage Trace ..................................................................................30
IX
115 VAC Circuit Trace ...........................................................................................31
X
Diptube Inspection & Replacement .......................................................................32
XI
Anode Inspection & Replacement .........................................................................33
XII
Flue Baffle Inspection & Replacement ..................................................................34
XIII
Inner Door/Gasket Removal, Inspection & Replacement .....................................35
XIV
Glossary of Terms ..................................................................................................38
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Parts List and Diagram ...........................................................................................39
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Notes.......................................................................................................................40
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