A.O. Smith GP 6 40YPC T 100, PCG6240T403NOV 100, PCG2J5040T3NOV 100, PCG2J4040T3NOV 100, GAHH 40 100

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ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. IF YOU ARE UNSUCCESSFUL, CONTACTA O SMITH WATER HEATERS RESIDENTIAL TECHNICALASSISTANCE AT 1-800-527-1953 OR WWW.HOTWATER.COM.

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Contents Models ALL Technical and Warranty Questions Service Handbook Tools Required for servicing gas modelsFire or Explosion Harzard Breathing Hazard Carbon Monoxide GasTable of Contents Basic Installation & Operation Installation of Residential GAS Water HeaterCombustion AIR and Vent System Requirements Carbon Monoxide WarningReference Vent Connectors Connector must be firmly attached Gas Control Valve/Thermostat Lower Control Know the Water HEATER’S Component PartsElectronic Control Display Upper Control Air Intake Chamber Fan Burner/Manifold Door AssemblyPressure Switch Power Anode Rod HOW the Water HEATER’S Component Parts are ConnectedWater Heater Operation Sequence of OperationFILLING, Draining and Flushing the Water Heater Tank For Your Safety Read Before Operating Lighting InstructionsAdjusting the Temperature on Electronic Control Display Hotter CoolerFault Code Retrieval Using the Electronic Control DisplayFault Code Diagnostics Reviewing Fault Codes FV-Sense Reset SequenceElectronic Control Display Troubleshooting Electronic Control DisplayControl Display Troubleshooting Control Display Status Problem SolutionLDO-SW, OPEN, and Clean Screen Troubleshooting Flowchart YESCleaning the Combustion Chamber and Air Diverter Assembly External Inspection and CleaningCleaning the Air Intake Chamber Screen Removing the Electronic Control Display Electronic Control Display Removal / ReplacementInstalling the Electronic Control Display Powered Anode ROD Removal / Replacement Removing the Powered Anode RodInstalling the Powered Anode Rod Installing the Pressure Switch Pressure Switch Removal / ReplacementRemoving the Pressure Switch Transformer Removal / Replacement Removing the TransformerInstalling the New Transformer AIR Intake Chamber BOX Removal / Replacement Removing the Air Intake Chamber BoxInstalling the Air Intake Chamber Box Installing the Fan in the Air Intake Chamber Box Wiring Harness Removal / Replacement PressureReplacing the Wiring Harness Installing the New Wiring HarnessUndue Pressure or Sudden Force AIR Intake Chamber FAN Removal / Replacement Removing the Fan from the Air Intake ChamberInstalling the Fan in the Air Intake Chamber Box Pressure Tubing Removal / Replacement Installing the Air Intake Chamber Box Inner DOOR/MANIFOLD/BURNER Assembly Removal / Replacement GAS ControlInstallation Caution Must Be Taken TABFlame SENSE/HOT Surface Igniter Removal / Replacement Replacing the Flame Sense/Hot Surface Igniter AssemblyBurner Removal / Replacement Installing New Burner Removing Old BurnerPressure Burner Orifice Removal / Replacement Installing New Burner Orifice Removing Old Burner OrificeReinstalling The Inner Door/Manifold/Burner Assembly GAS Control VALVE/THERMOSTAT Removal / Replacement Removing the Gas Control Valve/ThermostatInstalling the Gas Control Valve/Thermostat Checking the GAS Supply Pressure Checking the Gas Supply PressureGAS Water Heater Sizing Guide Leakage CheckpointsGeneral Information Formulas and ConversionsMM millimeters =Inches X
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