Table of Contents
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TECHNICAL TRAINING AND
SERVICE MANUAL
TANKLESS
WATER HEATERS
SUPER HIGH EFFICIENCY (Condensing)
RTGH-S11i
RTGH-SR11i
RTGH-SPR11i
CRTGH-S11i
CRTGH-SR11i
CRTGH-SPR11i
RUTGH-S11i
RUTGH-SR11i
RUTGH-SPR11i
CRUTGH-S11i
RTGH-SC11i
RTGH-S10i
RTGH-SR10i
RTGH-SPR10i
CRTGH-S10i
CRTGH-SR10i
CRTGH-SPR10i
RUTGH-S10i
RUTGH-SR10i
RUTGH-SPR10i
CRUTGH-SR11i
RTGH-SCP11i
RTGH-S84i
RTGH-SR84i
RTGH-SPR84i
CRTGH-S84i
CRTGH-SR84i
CRTGH-SPR84i
RUTGH-S84i
RUTGH-SR84i
RUTGH-SPR84i
CRUTGH-SPR11i
AP23209
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Table of Contents
Related Manuals for Rheem Iconic RTGH-S10i
Summarization of Contents
SAFETY AND INTRODUCTION
FLAMMABLE LIQUIDS AND VAPORS
Warnings about handling flammable materials near the unit.
WATER TEMPERATURE ADJUSTMENT
Guidelines for setting safe and efficient water temperatures.
TROUBLESHOOTING TOOLS
MEASURING VOLTAGE AND RESISTANCE
Procedures for using multimeter for diagnostics.
REQUIRED DIAGNOSTIC TOOLS
Lists multimeter, needle set, and manometer.
GENERAL INFORMATION
SPECIFICATIONS AND INSTALLATION
Technical specs, dimensions, venting, and connections.
CONTROL BOARD CONNECTORS
Identification and wiring of control board connectors.
DIAGNOSTIC POINTS ON CONTROL BOARD
Key points for electrical diagnostics on the control board.
USER INTERFACE AND SETTINGS
LCD display, operation modes, and settings menus.
SERVICE MENU ITEMS
Description of items accessible via the service menu.
ERROR CODE DIAGNOSTICS
NO HOT WATER OR ERROR CODE
Troubleshooting steps for units without hot water or errors.
THERMISTOR MALFUNCTIONS
Diagnostic steps for thermistor errors (A031, A033, A032).
IGNITION AND FLAME SENSING ERRORS
Troubleshooting for A011 (Flame Not Detected) and A012 (Flame Lost).
MOTOR AND VALVE ERRORS
Troubleshooting for A065, A066, A055 errors related to motors/valves.
COMMUNICATION AND CHIP ERRORS
Diagnosing A200, A082, T110 errors for communication issues.
HOW TO REMOVE COMPONENTS
FRONT COVER
Steps to remove the outer front casing.
GAS-AIR RATIO VALVE
Procedure for removing the gas-air ratio valve assembly.
WATER CONTROL VALVE
Instructions for removing the water control valve.
BLOWER ASSEMBLY
Procedure for removing the blower motor and venturi assembly.
CONTROL BOARD
Instructions for removing the main control board.
ORIFICE PLATE (NAT/LP)
Steps for replacing natural gas or LP orifice plates.
HOW TO CONNECT
CONNECTING TO WIFI
Guide for connecting the unit to a WiFi network via the EcoNet app.
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