A.O. Smith PCG2J5040T3NOV 100, PCG6240T403NOV 100, PCG2J4040T3NOV 100, GAHH 40 100 manual Models

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SERVICE HANDBOOK FOR

STANDARD RESIDENTIAL

HIGH EFFICIENCY ATMOSPHERIC VENT

(FVIR) GAS WATER HEATERS

MODELS:

 

GAHH 40 100,

GAHH 50 100,

GP 6 40YPC T 100,

GP 6 50YPC T 100,

PCG6240T403NOV 100,

PCG250T403NOV 100,

PCG2J4040T3NOV 100,

PCG2J5040T3NOV 100,

12 40GPC T 100,

12 50GPC T 100,

PCG2J4040T3NOV 100,

PCG2J5040T3NOV 100

Printed in U.S.A. 10/10

318181-000

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Contents Models ALL Technical and Warranty Questions Tools Required for servicing gas models Service HandbookBreathing Hazard Carbon Monoxide Gas Fire or Explosion HarzardTable of Contents Installation of Residential GAS Water Heater Basic Installation & OperationCarbon Monoxide Warning Combustion AIR and Vent System RequirementsReference Vent Connectors Connector must be firmly attached Electronic Control Display Upper Control Know the Water HEATER’S Component PartsGas Control Valve/Thermostat Lower Control Pressure Switch Burner/Manifold Door AssemblyAir Intake Chamber Fan HOW the Water HEATER’S Component Parts are Connected Power Anode RodSequence of Operation Water Heater OperationFILLING, Draining and Flushing the Water Heater Tank Lighting Instructions For Your Safety Read Before OperatingHotter Cooler Adjusting the Temperature on Electronic Control DisplayFault Code Diagnostics Using the Electronic Control DisplayFault Code Retrieval FV-Sense Reset Sequence Reviewing Fault CodesElectronic Control Display Electronic Control Display TroubleshootingControl Display Status Problem Solution Control Display TroubleshootingLDO-SW, OPEN, and Clean Screen YES Troubleshooting FlowchartCleaning the Air Intake Chamber Screen External Inspection and CleaningCleaning the Combustion Chamber and Air Diverter Assembly Installing the Electronic Control Display Electronic Control Display Removal / ReplacementRemoving the Electronic Control Display Removing the Powered Anode Rod Powered Anode ROD Removal / ReplacementInstalling the Powered Anode Rod Removing the Pressure Switch Pressure Switch Removal / ReplacementInstalling the Pressure Switch Removing the Transformer Transformer Removal / ReplacementInstalling the New Transformer Removing the Air Intake Chamber Box AIR Intake Chamber BOX Removal / ReplacementInstalling the Air Intake Chamber Box Installing the Fan in the Air Intake Chamber Box Pressure Wiring Harness Removal / ReplacementInstalling the New Wiring Harness Replacing the Wiring HarnessUndue Pressure or Sudden Force Removing the Fan from the Air Intake Chamber AIR Intake Chamber FAN Removal / ReplacementInstalling the Fan in the Air Intake Chamber Box Pressure Tubing Removal / Replacement Installing the Air Intake Chamber Box GAS Control Inner DOOR/MANIFOLD/BURNER Assembly Removal / ReplacementTAB Installation Caution Must Be TakenReplacing the Flame Sense/Hot Surface Igniter Assembly Flame SENSE/HOT Surface Igniter Removal / ReplacementBurner Removal / Replacement Removing Old Burner Installing New BurnerPressure Burner Orifice Removal / Replacement Removing Old Burner Orifice Installing New Burner OrificeReinstalling The Inner Door/Manifold/Burner Assembly Removing the Gas Control Valve/Thermostat GAS Control VALVE/THERMOSTAT Removal / ReplacementInstalling the Gas Control Valve/Thermostat Checking the Gas Supply Pressure Checking the GAS Supply PressureLeakage Checkpoints GAS Water Heater Sizing GuideFormulas and Conversions General InformationMM millimeters =Inches X
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