American Water Heater (A)BCG385T500-8N manual Troubleshooting, Ignition Control Board Error Codes

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TROUBLESHOOTING

TROUBLESHOOTING

IGNITION CONTROL BOARD: ERROR CODES

The White Rodgers ignition control board will display a flashing error code with an LED light located on the upper left corner of the Ignition Control Board (Figure 18) when there is a problem. There is a distinctive pause between a series of on/ off flashes (1 to 8 flashes) when there is a problem. The following information describes the meaning of these error “flash” codes and what should be checked and/or repaired. The 5 flash error code is not used with this application.

NOTE: The Ignition Control Board varies the voltage to the Igniter to decrease wear. Lower voltage results in a longer life for the Igniter. For this reason, voltage to the Igniter may vary from 80 VAC to 120 VAC.

1FLASH

System has locked out after 3 trials for ignition.

1Check voltage (80-120 VAC) to igniter.

2Check flame sense rod alignment.

3Check igniter and flame sense rod wiring.

4Check flame sense rod for corrosion; clean with steel wool.

5Check igniter resistance. It should be 11 - 20 ohms.

6Check ceramic insulator on igniter/flame sensor assembly for cracks. Replace if damaged.

7Check manifold gas pressure.

8Check all molex plug connections; on integrated control, ignition control board, and between the various components. Check the pin-to-pin contact between plugs; gently wiggle suspected plug connections during operation.

2FLASHES

Blower Prover Switch circuit was closed during self-diagnostic check at the beginning of the heat cycle. Contacts should have opened at the end of last heat cycle. Blower (Draft Inducer) will not start; call for heat “Status” LED will be illuminated on integrated control.

1Test continuity of blower prover switch; it should be open in “normal state” (blower not running - wires removed)

2Replace blower prover switch if continuity is present between terminals in normal state.

3Check blower prover switch wiring, making sure that there are no jumpers on blower prover switch.

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 Qualifications Service WarningService Reminder IntroductionTools Optional RequirementsTools Required Closed Water Systems Installation ConsiderationsWater Piping GAS Pressure RequirementsAir 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 System has locked out after 3 trials for ignition TroubleshootingIgnition Control Board Error Codes 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 LightsThen Test 1 120 VAC to Heater CheckConditions 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

The American Water Heater (A)BCG38T500-8P and (A)BCG385T500-8N are innovative options in the realm of residential water heating systems. Designed for efficiency and reliability, these water heaters are perfect for households looking for robust hot water solutions.

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Installation is straightforward, as these water heaters are designed to fit standard plumbing setups. They also offer a range of adjustable settings, allowing homeowners to customize their hot water experience according to their specific needs.

In summary, the American Water Heater (A)BCG38T500-8P and (A)BCG385T500-8N stand out for their ample capacity, energy-efficient operation, durable construction, and safety features. They represent a reliable choice for those seeking effective and long-lasting water heating solutions in their homes.
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