Model reference

Bradford White LC2PV50H76*(N,X)

Water Heater

1 document17 error codes

Available documentation

Service Manual

Condensing PV Series Through-The-Wall Gas Water Heaters SERVICE MANUAL Troubleshooting Guide and Instructions for Service44 pg
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1 flash every 4 seconds on my Bradford White LC2PV50H76*(N,X)

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Stand-by mode, waiting for call for

From Service Manual 724681, p.13:

1.Access service mode to confirm the active fault code and read stored error history.

2.Disconnect the sensor and measure resistance. Expected: 10 kΩ to 12 kΩ at 77°F (25°C).

3.Check the sensor harness for opens. A reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part WP8577274

Temperature thermistor

Error codes (17)

CodeMeaning

1 flash every 4 secondsStand-by mode, waiting for call for heat; no fault, temperature demand is…1 flash per secondWeak pilot signal detected on last call for heat.2 flashPressure switch stuck in closed position when it should be open at start of…3 flashPressure switch or blower temperature switch failed to close (stuck in open…4 flashExcessive tank temperature; ECO (Energy Cut Out) limit reached 5 flashUndesired/false pilot flame sensed when pilot valve is not open.6-1 flashFailed to light pilot within 90-second trial for ignition 6-2 flashPressure switch or blower temperature switch opened during burner operation 6-3 flashPilot flame extinguished during run 6-4 flashUndesired/false pilot flame sensed out of sequence 7 flashSimulated Resistive Device fault detected; harness out of specification or…8-1 flashSimulated Resistive Device out of specification; possible short (resistance…8-2 flashTemperature sensor fault; damage to temperature sensor wire or temperature…8-3 flashGas valve electronics fault detected; control may need reset or is…8-4 flashGas valve fault detected; control may need reset or is wet/physically damaged.Heartbeat (alternating bright/dim)Thermostat calling for heat; no fault, tank temperature below set point.NoneNo electrical power to the control; power switch in OFF position or supply…

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