Table Of Contents - Rheem 871018 Service Instructions Manual

Contents
Introduction ................................................................................................................................... 3
Water Heater Model Identification................................................................................................ 3
Preset Temperature Adjustment .................................................................................................. 4
Wiring Diagram - Models with Mechanical Bypass .................................................................... 5
Wiring Diagram - Models with Solenoid Operated Bypass ........................................................ 6
Sequence of Operation ................................................................................................................. 7
Specifications ............................................................................................................................... 8
Bypass Operation ......................................................................................................................... 9
Anti-Frost Heater Circuit ............................................................................................................ 10
Product Changes ........................................................................................................................ 10
Software Changes ........................................................................................................................ 10
Parts Replacement & Wiring Changes for 871024, 871024-B & 817026 Model Heaters Only ....... 10
In-series Gas Boosting ............................................................................................................... 15
Tempering Valves ....................................................................................................................... 20
Remote Controllers ..................................................................................................................... 20
How to Fault Find ........................................................................................................................ 23
Operational Flow Charts 1 & 2 ................................................................................................... 25
Error Codes ................................................................................................................................. 28
Diagnostic Test Points ............................................................................................................... 29
Maintenance Information ............................................................................................................ 30
Clearing Error Code History ....................................................................................................... 31
Resetting Error Codes ................................................................................................................ 32
Fault Diagnosis Sequence (Fault Finding Chart G) .................................................................. 33
Fault Finding Chart 1 .................................................................................................................. 34
Fault Finding Chart 2 .................................................................................................................. 36
Fault Finding Chart 3 .................................................................................................................. 38
Fault Finding Chart 3.1 ............................................................................................................... 40
Fault Finding Chart 3.2 ............................................................................................................... 41
Fault Finding Charts 3.3 and 3.5 ................................................................................................ 43
Fault Finding Chart 3.6 ............................................................................................................... 44
Fault Finding Chart 3.7 ............................................................................................................... 46
Fault Finding Chart 3.8 ............................................................................................................... 47
Fault Finding Charts 4 and 4.1 ................................................................................................... 48
Fault Finding Chart 4.2 ............................................................................................................... 49
Fault Finding Chart 4.3 ............................................................................................................... 50
Fault Finding Chart 5 .................................................................................................................. 51
Burner Gas Pressure Check....................................................................................................... 51
Component Replacement Procedures ...................................................................................... 52
Exploded View 1 871018 / 871020 / 871024 Replacement Parts List............................................ 61
Exploded View 2 871018 / 871020 / 871024 ................................................................................. 62
Exploded View 2 871018 / 871020 / 871024 Replacement Parts List............................................ 63
Exploded View 1 - 871024 Model ............................................................................................... 64
Exploded View 2 - 871024 Models ............................................................................................. 66
Exploded View 3 - 871024-B Model ............................................................................................ 68
Exploded View 4 - 871024-B Model ............................................................................................ 70
Exploded View 4 Replacement Parts List - 871024-B Model .................................................... 71
Exploded View 5 - 871024, 871026 & 871026-B Models ........................................................... 72
Exploded View 6 - 871024-C, 871026 & 871026-B Models ........................................................ 74
Gas Type Conversion Procedure ............................................................................................... 76
Warranty ...................................................................................................................................... 78
TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
2
D.O.I: February 2008
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