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Rheem 871024 User Manual

Rheem 871024
77 pages
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SERVICE INSTRUCTIONS
18, 20,24, 26L Integrity
Electronic Gas Continuous Flow
Water Heater
TM031
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871018
871020
871024
871024-B
871024-C
871026
871026-B

Table of Contents

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Rheem 871024 Specifications

General IconGeneral
BrandRheem
Model871024
CategoryWater Heater
LanguageEnglish

Summary

Safety Warnings and Precautions

Safety Warning

Provides essential safety information for service personnel and highlights potential hazards.

Introduction to Service Manual

Explains the purpose of the service manual and how to obtain further technical advice.

Water Heater Model Identification

Details how to interpret the water heater model number for identification.

Preset Temperature Adjustment Procedure

Wiring Diagram - Mechanical Bypass Models

Wiring Diagram - Solenoid Operated Bypass Models

Sequence of Operation

Specifications

Bypass Operation Details

Mechanical Bypass Explanation

Describes the operation of the mechanical bypass valve.

Solenoid Operated Bypass Explanation

Describes the operation of the solenoid-operated bypass valve.

Anti-Frost Heater Circuit

Product Changes and Updates

Software Changes

Details software modifications affecting heater operation.

Parts Replacement and Wiring Changes

Information on superseded parts and necessary wiring modifications.

Parts Replacement Scenarios

Power Cord Replacement

Specific replacement procedure for the power cord and associated parts.

Transformer Replacement

Details replacement of the transformer and interconnecting components.

Power Filter Replacement

Procedure for replacing the power filter and related parts.

Connecting Cord Replacement

Instructions for replacing the connecting cord and associated components.

Ambient Air Thermistor Replacement

Information on replacing the ambient air thermistor and signal loom.

Heat Exchanger Thermistor Replacement

Details for replacing the heat exchanger thermistor and related components.

Inlet Thermistor Replacement

Procedure for replacing the inlet thermistor and associated parts.

Outlet Thermistor Replacement

Instructions for replacing the outlet thermistor and related components.

Overheat Limiter Replacement

Procedure for replacing the overheat limiter and associated components.

Flow Sensor Replacement

Details on replacing the flow sensor and related parts.

Signal Loom Replacement

Instructions for replacing the signal loom and associated sensors.

In-series Gas Boosting

Solar Bypass Valve Operation

Explains the function of the solar bypass valve in the system.

Comparator Installation Procedure

Details on replacing solar bypass valves with comparators.

Removing and Installing Comparator

Step-by-step guide for removing the bypass valve and installing a comparator.

Tempering Valves

Remote Controllers

Standard Controller Operation

Explains the interface, buttons, and operational modes of the standard controller.

How to Fault Find

Operational Flow Chart Guide

Sequence Number Table

Key to interpret sequence numbers for fault finding charts.

Test Equipment List

Lists essential test equipment for diagnostic procedures.

Operational Flow Charts 1 & 2

Operational Flow Chart 3

Operation Flow Charts 4 & 5

Error Codes

Diagnostic Test Points

Maintenance Information

Maintenance Table

Table detailing information retrievable from the water heater's memory.

Flame Sensor Status Interpretation

Explains how to interpret flame sensor status readings.

Displaying Maintenance Information

Clearing Error Code History

Resetting Error Codes

Fault Diagnosis Sequence (Chart G)

Fault Finding Chart 1

Fault Finding Tests 1-4

Fault Finding Chart 2

Fault Finding Tests 5-8

Fault Finding Chart 3

Fault Finding Tests 9-13

Fault Finding Chart 3.1

Fault Finding Chart 3.2

Fault Finding Tests 14-22

Fault Finding Charts 3.3 & 3.5

Fault Finding Chart 3.6

Fault Finding Tests 23-28

Fault Finding Chart 3.7

Fault Finding Chart 3.8

Fault Finding Tests 29-31

Visual guide for testing fan current detection and related components.

Fault Finding Charts 4 & 4.1

Fault Finding Chart 4.2

Fault Finding Chart 4.3

Burner Gas Pressure Check

Fault Finding Chart 5

Troubleshooting guide for flow sensor and gas related issues.

Fault Finding Tests 32 & 33

Visual guide for testing the flow sensor components.

Component Replacement Procedures

Front Panel Removal

Procedure for safely removing the water heater's front panel.

PCB Assembly Replacement

Step-by-step guide for replacing the Printed Circuit Board (PCB).

Water Body Assembly Replacement

Procedure for removing and replacing the water body assembly.

Heat Exchanger Replacement

Instructions for removing and replacing the heat exchanger unit.

Thermistors Replacement

Guidance on replacing various thermistor components.

Transformer Replacement

Procedure for replacing the unit's transformer.

Power Filter Replacement

Details on how to replace the power filter.

Nozzle Plate Replacement

Procedure for replacing the nozzle plate on NG appliances.

Exploded View 1 - Model Overview

Exploded View 1 - Parts List

List of replacement parts for Exploded View 1.

Exploded View 2 - Model Overview

Exploded View 2 - Parts List

List of replacement parts for Exploded View 2.

Exploded View 1 - 871024 Model Overview

Exploded View 1 - 871024 Parts List

Specific parts list for Exploded View 1 of the 871024 model.

Exploded View 2 - 871024 Models Overview

Exploded View 2 - 871024 Parts List

Specific parts list for Exploded View 2 of the 871024 models.

Exploded View 3 - 871024-B Model Overview

Exploded View 3 - 871024-B Parts List

Specific parts list for Exploded View 3 of the 871024-B model.

Exploded View 4 - 871024-B Model Overview

Exploded View 4 - 871024-B Parts List

Specific parts list for Exploded View 4 of the 871024-B model.

Exploded View 5 - Model Overview

Exploded View 5 - Parts List

List of replacement parts for Exploded View 5 (871024-C, 871026 & 871026B).

Exploded View 6 - Model Overview

Exploded View 6 - Parts List

List of replacement parts for Exploded View 6 (871024-C, 871026 & 871026B).

Gas Type Conversion Procedure

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