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Error code reference

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

Main valve is open and main burner is lit; thermostat is calling for heat and water heater is operating normally.

Bradford White codesBradford White water heater codes
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What the 1 flash every second (green) error code actually means

Your Bradford White water heater is working exactly as it should. The green flashing light means the burner is on and the heater is actively warming your water to the temperature you have set. Once the water reaches that target temperature, the burner will shut off on its own.

Diagnostic procedure

The full 1 flash every second (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.

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1
First diagnostic step
Normal operation. Control will automatically shut main burner off when setpoint temperature is reached.
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Most common causes of 1 flash every second (green)

Ranked by how often they cause this code
  1. 1Normal heating cycle after hot water use
  2. 2Initial startup after installation or power restoration
  3. 3High hot water demand extending the heating cycle
  4. 4Setpoint configured higher than default

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Questions people ask about 1 flash every second (green)

What does 1 flash every second (green) mean on a Bradford White water_heater?
This pattern means the water heater is operating normally. The main gas valve is open, the main burner is lit, and the thermostat is calling for heat. The control board will automatically shut the burner off once the water reaches the set temperature. No action is required.
Is it safe to use my water heater when this light is flashing?
Yes, this indicator confirms the heater is functioning safely and normally. The control system has verified the burner is lit and operating within expected parameters. There is no safety concern associated with this specific green flash pattern.
How much does it cost to address this flashing code on a Bradford White water heater?
Since this is a normal operating status and not a fault code, there is no repair cost associated with it. If a technician visit is desired to confirm system health, diagnostic service calls typically range from around $75 to $150 depending on your location and the service provider.
Do I need to fix anything when I see this green flashing light?
No repairs are needed. The 1 flash per second green indicator is a normal operating status, not a fault or warning. You only need to investigate further if the burner runs continuously for an unusually long time without shutting off, which could indicate a thermostat or control issue.
Will resetting the water heater clear this flashing light?
Resetting is not necessary and will not change normal behavior. The green 1-flash pattern will return as soon as the heater calls for heat again after a reset. The indicator will only stop during a heating cycle if the setpoint temperature is reached and the burner shuts off on its own.

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