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Rheem 871018 User Manual

Rheem 871018
77 pages
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TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled
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Table of Contents

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Rheem 871018 Specifications

General IconGeneral
BrandRheem
Model871018
CategoryWater Heater
LanguageEnglish

Summary

Safety Warning and Introduction

Preset Temperature Adjustment

Adjusting Preset Temperature

Step-by-step guide to adjusting the water heater's preset temperature using DIP switches and buttons.

Sequence of Operation

In-Series Gas Boosting

Solar Bypass Valve and Comparator

Removing Solar Bypass Valve and Installing Comparator

Standard Controller Operation

Fault Finding Procedures

How to Fault Find

Outlines the recommended procedure for diagnosing and rectifying faults on the water heater.

Fault Finding Flow Diagram

Visual flow diagram guiding users through the fault diagnosis process.

Error Codes

Lists error codes, their causes, and diagnostic steps for troubleshooting.

Diagnostic Test Points and Flow Charts

Diagnostic Test Points

Provides a table of test points, wiring, normal conditions, and items under test.

Operational Flow Charts 1 & 2

Provides flow charts for troubleshooting specific operational issues and error codes.

Operational Flow Chart 3

Details the fault finding process for ignition and temperature control issues.

Operational Flow Chart 4 & 5

Outlines flow charts for post-purge shutdown and other operational faults.

Maintenance and Reset Procedures

Displaying Maintenance Information

Step-by-step guide to displaying maintenance information via the water heater or remote controller.

Clearing Error Code History

Procedure for clearing the error code history after repairs.

Resetting Error Codes

Instructions on how to reset specific error codes, particularly Error Code 99.

Detailed Fault Finding Charts

Fault Diagnosis Sequence (Fault Finding Chart G)

A flowchart guiding the user through a fault diagnosis sequence based on LED display.

Fault Finding Chart 1: Power and Transformer Issues

Guide for diagnosing power supply and transformer related issues.

Fault Finding Chart 2: System Not Ready Issues

Covers troubleshooting for overheating, communication failures, and fan circuit issues.

Fault Finding Chart 3: Ignition and Temperature Control

Focuses on ignition and temperature control faults, including thermistor and fan speed issues.

Specific Fault Finding Tests

Fault Finding Tests 1-4

Illustrates tests for power supply, transformer, and power filter checks.

Advanced Fault Finding Charts

Fault Finding Charts 3.3 and 3.5

Deals with flame failure, abnormal combustion, and purge failures.

Fault Finding Chart 3.6

Focuses on water flow servo malfunctions and bypass solenoid issues.

Fault Finding Chart 3.7

Addresses outlet water temperature issues and solar bypass valve/comparator checks.

Fault Finding Chart 3.8

Focuses on fan current detection circuit failures.

Gas Boosting and Flow Sensor Faults

Fault Finding Charts 4 and 4.1

Covers issues related to in-series gas boosting and flow sensor checks.

Fault Finding Chart 4.2

Addresses solar bypass valve/comparator fitting and water flow sensor issues.

Fault Finding Chart 4.3

Details procedures for preheated water issues and solar bypass valve functionality.

Burner Gas Pressure and Component Tests

Fault Finding Chart 5

Covers tests for water flow sensor and flow sensor turbine.

Component Replacement Procedures

Gas Type Conversion Procedure

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