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General| Brand | Rheem |
|---|---|
| Model | RTG2-42 |
| Category | Water Heater |
| Language | English |
Details common technical specifications for all models.
Tracks product modifications and upgrades over time.
Explains the step-by-step process of unit operation.
Covers safety devices and sensor operations for reliable performance.
Guide to accessing and interpreting the unit's diagnostic display.
Role of the heat exchanger thermistor and related error codes.
Procedure to clear error codes and reset the unit's fault log.
Steps for adjusting the burner control assembly for optimal performance.
Procedure for measuring and verifying manifold gas pressure.
Instructions for adjusting the program chip for altitude settings.
Steps to adjust maximum temperature settings to 120°F, 130°F, or 140°F.
Explains the diagnostic tree format used for troubleshooting.
Troubleshooting steps for when the unit fails to power on.
Explains the one-hour continuous combustion timer fault.
Troubleshooting guide for ignition failure scenarios.
Steps to diagnose and resolve flame failure or loss of flame verification.
Troubleshooting the ODS sensor activation due to imperfect combustion.
Explains issues when the heat exchanger becomes too hot.
Troubleshooting water inlet thermistor errors.
Diagnosing faults related to the gas inlet solenoid valve.
Steps to resolve combustion fan failure and motor issues.
Troubleshooting water volume control and flow issues.
Troubleshooting blocked flue conditions and venting system failures.
Troubleshooting low water flow rate that prevents burner ignition.
Step-by-step guide for removing and replacing the PCB.
Procedure for replacing water inlet solenoid and thermistor.
Steps for replacing the proportional gas flow regulator valve.
Guide for removing the main burner assembly from the unit.
Steps to remove and replace igniters and their probes.
Lists and describes common replacement parts for the unit.
Visual diagram showing part locations for RTG2-42PV and RTG 53PV.
Visual diagram showing part locations for RTG 66DV models.
Visual diagram showing part locations for RTG 74X and GT 199X.
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