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Error code reference
Bradford White Water Heater Error Code 1 flash every 4 sec green (V2)
Not an error; indicates pilot is lit and main burner is off. Turn knob to desired setpoint temperature.
SourceBradford White Ultra Low NOx Water Heaters - Service Manual: ECO Defender Seriesp. 8
Diagnostic procedure
The full 1 flash every 4 sec green (V2) procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Normal operation.
SourceBradford White Ultra Low NOx Water Heaters - Service Manual: ECO Defender Seriesp. 8
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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