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Rheem IKONIC RTGH-S11i User Manual

Rheem IKONIC RTGH-S11i
92 pages
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TANKLESS
WATER HEATERS
TECHNICAL TRAINING AND
SERVICE MANUAL
RTGH-S11i RTGH-S10i RTGH-S84i
RTGH-SR11i RTGH-SR10i RTGH-SR84i
CRTGH-S11i CRTGH-S10i CRTGH-S84i
CRTGH-SR11i CRTGH-SR10i CRTGH-SR84i
RUTGH-S11i RUTGH-S10i RUTGH-S84i
RUTGH-SR11i RUTGH-SR10i RUTGH-SR84i
CRUTGH-S11i CRUTGH-SR11i
AP23209 Rev 03

Table of Contents

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Rheem IKONIC RTGH-S11i Specifications

General IconGeneral
BrandRheem
ModelIKONIC RTGH-S11i
CategoryWater Heater
LanguageEnglish

Summary

Safety and Introduction

Electrical and Fire Safety Warnings

Covers electrical shock hazards and precautions with flammable materials.

Water Temperature Safety Guidelines

Advises on safe water temperature settings to prevent scalding hazards.

Troubleshooting Tools and Procedures

Essential Measurement Tools

Lists and describes multimeter, needle set, manometer, and needle leads.

Measuring Voltage and Resistance

Details procedures for safely measuring electrical voltage and resistance.

General Information and Specifications

Product Specifications Overview

Provides key technical data including dimensions, gas type, and connections.

Flow Rate and Pressure Curves

Illustrates water flow rates at various temperature rises and pressure drops.

Component Identification and Diagrams

Shows exploded views and lists direct-vent gas components with reference numbers.

Venting and Installation Guidelines

Outlines approved vent materials, sizes, and installation requirements.

User Interface and Options

Navigating the LCD Display and Menus

Explains how to access and navigate status and menu options on the LCD.

WiFi Setup and Connectivity

Guides users through connecting the water heater to WiFi and the EcoNet app.

Key Settings and Configurations

Details settings for temperature display, alarms, and recirculation modes.

Service Menu Functions

Describes access to service information, alerts, and reset options.

Error Code Diagnostics

No Hot Water and Flow Sensor Issues

Diagnoses issues when no hot water is delivered despite water flow.

Ignition and Flame Detection Errors

Covers troubleshooting for flame detection failures (A011, A012).

Thermistor and Component Faults

Addresses errors related to thermistors, motors, and valves (A031-A066).

Communication and System Errors

Details diagnostics for microcomputer, communication, and WiFi errors (A070-T110).

Component Removal Procedures

Accessing Internal Components

Instructions for removing front cover and plastic screw covers.

Removing Gas and Water Valves

Step-by-step guide for removing gas-air ratio and water control valves.

Flame Rod, Igniter, and Blower Removal

Procedures for removing flame rod, igniter, and blower assembly.

Control Board and Wiring Harnesses

Steps for removing the control board, display, and various wiring harnesses.

Connecting to WiFi and App Setup

WiFi Connection and App Setup

Guides on scanning QR code, downloading app, and connecting to WiFi.

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