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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American Water Heater (A)BCG385T500-8N, (A)BCG38T500-8P manual Troubleshooting, Ignition Control Board Error Codes

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