American Water Heater (A)BCG385T500-8N manual Igniter not sensed and/or water heater not grounded

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TROUBLESHOOTING

4Check molex plug connector between igniter/flame sensor assembly and control board; Also check flame sense (12 pin) plug connection at control board.

8FLASHES

Igniter not sensed and/or water heater not grounded.

1Test igniter resistance. It should should be 11 - 20 ohms. Replace igniter if open continuity.

2Ensure that the water heater is grounded. Check all ground wires on heater and controls.

3Check molex plug connector between igniter/flame sensor assembly and control board. Also check igniter (4 pin) plug connection at control board.

CONTINUOUS FLASH

Flame sensed out of sequence; continuous flame sensed for more than 5 seconds without gas valve being energized.

1 Ensure that the gas valve is not failing to close at the end of the heating cycle.

CONTINUOUS ON

Internal control board failure.

1 Replace ignition control board.

Servicing should only be performed by a Qualiﬁed Service Agent

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Contents Models ABCG385T500-8N Commercial GAS Water HeatersCommercial GAS Water Heater Table of Contents Service Reminder Service WarningIntroduction QualificationsTools Required RequirementsTools Optional Water Piping Installation ConsiderationsGAS Pressure Requirements Closed Water SystemsAir Supply AIR RequirementsInstallation Considerations Make-up Air Direct Communication with Outdoors Contaminated Air Clearances Water HeaterMinimum Clearances to Combustible Surfaces Clearances ExteriorVenting Sequence of Operation Operation and ServiceElectrical Sequence 1a 1 1b Wiring DiagramYES Operating Sequence Flow ChartMeasuring Gas Pressures GAS Control ValveMain Valve Solenoid Connections Manifold Pressure AdjustmentHOT Surface Igniter HSI GAS Control VALVE/BURNER Area ViewBlower Prover Switch Table Blower Prover Switch SettingsThermostat and Ignition Control Board View White Rodgers Ignition Control Board White Rodgers Integrated Control ThermostatPRE-SERVICE Checklist Ignition Control Board Error Codes TroubleshootingSystem has locked out after 3 trials for ignition Reversed polarity in power supply Internal control board failure Igniter not sensed and/or water heater not groundedLED Indication Action Status Integrated Heater Control Display LightsConditions Test 1 120 VAC to Heater CheckThen Test 2 Polarity Check Test 3 Continuity Check of High Limit ECO Ohms Test 4 Upper Temperature Probe Continuity CheckTest 5 Calling for Heat no Blower Operation Test 6 Blower ON, no Ignition E4 Plug Test 8 Igniter HEATS, no Main Burner Test 9 Igniter HEATS, no Main Burner Test 10 Main Burner Ignition for Less than Five Seconds Test 11 Water Heater Shutting OFF below Setting Page

(A)BCG38T500-8P, (A)BCG385T500-8N specifications

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