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Error code reference

Bradford White Water Heater Error Code 1 flash every 4 sec (WR Electronic)

White Rodgers Electronic

Bradford White codesBradford White water heater codes

White Rodgers Electronic: Not an error; indicates pilot is lit and main burner is off.

First step from the service manual

Normal operation; if setpoint knob is at desired setting, thermostat is satisfied.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 1 flash every 4 sec (WR Electronic) means on a Bradford White water heater

The 1-flash-every-4-seconds pattern on a Bradford White water heater equipped with a White Rodgers electronic control module is not an error condition. This slow, rhythmic single flash is the control board's way of communicating a normal standby state: the pilot flame is confirmed lit and the main burner is not currently firing. The White Rodgers electronic ignition system continuously monitors the pilot via a thermocouple or flame sensor circuit, and this blink pattern confirms the sensing circuit is intact and the pilot is verified as present.

This status indication appears when the water temperature in the tank has reached the setpoint selected on the thermostat dial, meaning there is no current demand for additional heat. The control module holds the main gas valve closed and simply maintains the pilot while waiting for tank temperature to drop. This is standard operation during periods of low or no hot water usage, particularly overnight or during extended away periods.

If you observe this flash pattern and the water at the tap is adequately hot, no action is required. The system is functioning exactly as designed. If you see this pattern but the water is not reaching the desired temperature, check that the setpoint knob is turned to the correct position and has not been inadvertently bumped to a lower setting. Persistent 1-flash-every-4-seconds with cold water output would warrant further investigation into the thermostat calibration or the main burner valve operation.

Source: manufacturer service documentation.

Common causes of 1 flash every 4 sec (WR Electronic)

  1. 01

    Thermostat setpoint is satisfied

    Wiring / connection

    The water in the tank has reached the temperature selected on the thermostat dial, so the main burner has shut off as intended. This is the most frequent reason for seeing this flash pattern.

  2. 02

    Low hot water demand period

    Wiring / connection

    During times when little or no hot water is being used, such as overnight or while the household is away, the tank retains heat and the burner stays off for extended periods, producing this steady single-flash pattern.

  3. 03

    Setpoint knob turned down unintentionally

    Wiring / connection

    If the thermostat dial has been bumped to a lower setting, the control may be satisfied at a lower temperature than expected. Check the dial position to confirm it matches the desired temperature setting.

  4. 04

    Recent hot water draw has been refilled and reheated

    Wiring / connection

    After the tank recovers from a hot water draw, the burner cycles off and the unit returns to this standby flash pattern. This is normal post-recovery behavior.

See the test procedure for each cause

Frequently asked questions about 1 flash every 4 sec (WR Electronic)

What does 1 flash every 4 sec (WR Electronic) mean on a Bradford White water_heater?
This pattern indicates normal standby operation on a Bradford White unit with a White Rodgers electronic control. It confirms the pilot light is lit and the main burner is off because the tank water has reached the thermostat setpoint. No action is needed if your hot water supply is adequate.
Do I need to fix anything when I see this flash pattern?
No repair is required for this condition. The 1-flash-every-4-seconds pattern is a status indicator, not a fault code. If your hot water is at the right temperature, the system is operating correctly. Only investigate further if the water is not reaching the temperature set on the dial.
Is it safe to ignore this blinking light on my Bradford White water heater?
Yes, this particular flash pattern is completely safe to leave as-is. It means the pilot is burning and the burner is resting in standby. There is no fault, no lockout, and no component failure associated with this indication.
Will resetting the control clear this flash pattern?
Resetting the control is not necessary and will not change the underlying status. The 1-flash-every-4-seconds pattern will return after any reset because it reflects the actual operating state of the unit. A reset is only useful when clearing a genuine fault code lockout condition.
How much does it cost to repair this issue on a Bradford White water heater?
There is no repair needed for this condition, so there is no associated cost. If further diagnosis reveals an unrelated component issue, such as a faulty thermostat that is not accurately reading tank temperature, repair costs would vary depending on the specific part and labor involved, typically ranging from $50 to $250 for thermostat-related repairs.

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