Error code reference

Bradford White Water Heater Error Code 1 flash every 4 seconds (green)

Pilot is lit and main burner is off; gas valve is powered and waiting for setpoint knob to be turned to a water temperature setting, or thermostat is satisfied.

SourceBradford White Flammable Vapor Ignition Resistant Water Heaters - Service Manualp. 8, 11

Diagnostic procedure

The full 1 flash every 4 seconds (green) 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. Turn setpoint knob to desired temperature setting.

SourceBradford White Flammable Vapor Ignition Resistant Water Heaters - Service Manualp. 8, 11

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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Where this code is documented

1 manual in the MyPros+ library documents this code for Bradford White water heater.

Models covered by the manuals that document this code

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