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General| Brand | Rheem |
|---|---|
| Model | GHE100-250 |
| Category | Water Heater |
| Language | English |
Highlights electrical shock and flammable vapor hazards associated with water heater operation and maintenance.
Guidance on selecting water temperature settings for safety and energy conservation, with scald risk information.
Details on the blower motor and Honeywell gas control valve functions and connections.
Description of flue gas temperature sensor and power anode controller.
Information on the igniter, main igniter controller, and LCD display panel.
Description of various pressure switches, water temperature probes, and leak sensor.
Guidance on initial startup sequence and accessing the settings menu.
Details on adjusting basic, configuration, and time/date settings via the user interface.
Information on accessing and interpreting the status menu for diagnostics and Wi-Fi.
How to view current alarms, alarm history, and system health status.
Describes the initial checks and conditions for powering on and initiating a call for heat.
Details the pre-purge, ignition activation, and main burner operation sequence.
Explains the standby mode and provides screenshots of operational statuses.
Describes safety functions including flame detection, ECO, and pressure switches.
Details how the control handles power outages and manages ignition retry attempts.
Distinguishes between ALERT and ALARM error types and their clearing methods.
Lists common error codes from A001 to A026 with links to troubleshooting.
Troubleshooting steps for ignition lockout, including checks for spark, water, gas pressure, and venting.
Procedure for checking the gas valve voltage, operation, and harness connections.
Troubleshooting for unstable flame (A002) and intake switch open (A003) errors.
Troubleshooting for PoF switch errors during heating, pre-purge, and post-purge cycles.
Troubleshooting for exhaust pressure, PoF/blower mismatch, and high tank temperature errors.
Troubleshooting steps for high flue gas temperature, including sensor and wiring checks.
Troubleshooting for flue temperature sensor open/shorted and upper tank sensor open errors.
Troubleshooting for upper tank temp too hot, sensor shorted, and blower RPM feedback errors.
Troubleshooting for flame present, ignition, and communication failure errors.
Troubleshooting for config data restore, time clock, and water leak detection errors.
Troubleshooting for shut-off valve test errors and CO sensor alarms.
Troubleshooting for shutoff valve not open, no water, and no gas detected errors.
Troubleshooting for ignition retries, tank temp errors, and leak sensor installation.
Troubleshooting for degraded flame rod and combustion health alerts.
Troubleshooting for anode controller communication failures and specific anode alerts.
Procedure for checking inlet gas pressure limits and verifying valve operation.
List of available video guides for common repair procedures.
Steps for removing and replacing the ignition control board and LCD display.
Procedure for replacing the blower motor and water temperature sensor.
Steps for removing and replacing the igniter and flame sensor assemblies.
Procedure for replacing pressure switches and exhaust gas temperature sensor.
Detailed steps for removing and replacing the water heater's burner assembly.
Introduction to BACnet as a communication protocol for building automation systems.
Steps to navigate the user interface to access BACnet configuration settings.
Explanation of the LeakGuard auto shut-off system for preventing water damage.
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