Bradford White gas water heater status light: 1 flash, then a pause of 3 to 4 seconds
ICON control by Resideo, V1: No fault.
ICON control by Resideo, V2: Not an error: the pilot is lit and the main burner is off.
ICON control by SIT: Not an error: the pilot is lit and the main burner is off. Not a fault.
If you smell gas
Stop: do not relight or troubleshoot anything. Bradford White’s own words (first page of both Installation and Operation Manuals, 238-51007-00R and the Ultra Low NOx 238-53393-00K):
- DO NOT try to light any appliance.
- DO NOT touch any electrical switch.
- DO NOT use any phone in your building.
- Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire department.
Calling from a neighbor’s phone means leaving the building first.
Bradford White’s manual has 3 gas controls with a table for this pattern, and they do not all mean the same thing: the full wording for each is below.
What you see: one flash, then a pause, repeating. Applies to: Bradford White residential gas-fired tank water heaters with the ICON System electronic gas control.
What it means, by gas control
ICON control by Resideo, V1
The manual’s wording: “One flash and three second pause”.
No fault. With the knob at PILOT, the pilot flame is detected and the valve is powered, waiting for the knob to be turned to a water temperature. With the knob already at your setting, the thermostat is satisfied (the water is up to temperature).
Not a fault.
ICON control by Resideo, V2
The manual’s wording: “One flash every four seconds (LED green)”.
Not an error: the pilot is lit and the main burner is off.
Not a fault.
ICON control by SIT
The manual’s wording: “One flash every four seconds”.
Not an error: the pilot is lit and the main burner is off. The valve is powered and waiting for the knob to be turned to a temperature, or, with the knob at your setting, the thermostat is satisfied.
Not a fault.
What Bradford White tells the owner to do
- Bradford White says the valve is waiting for the set point knob to be turned to a water temperature setting.
- Bradford White says you can now turn the knob to the temperature you want.
semiatic gives no repair instructions of its own. The steps above are only the ones Bradford White addresses to the owner in its manual.
When to call a qualified service agency
This pattern is normal operation. If the light shows a fault code instead, or you have no hot water with the light normal and the knob set correctly:
Bradford White’s manual: “CAUTION: For your safety, do not attempt repair of combination gas control, burners or gas piping. Refer repairs to a qualified service technician.” Its FAQ adds: “If you are experiencing operating issues with your water heater, please contact a plumbing professional.”
Source
Bradford White’s own manuals, read on the date shown.
- Bradford White Corporation: Gas-Fired Water Heater Installation and Operation Manual (238-51007-00R, REV 07/26), “Troubleshooting — ICON System Electronic Gas Control” (Resideo V1, Resideo V2, SIT) — Bradford White residential gas-fired tank water heaters with the ICON System electronic gas control. docs.bradfordwhite.com Checked 2026-09-29.
- Bradford White Corporation: Ultra Low NOx Gas Water Heater Installation and Operation Manual (238-53393-00K, REV 08/26), “Troubleshooting — Resideo V1” and “Troubleshooting — Resideo V2” — Bradford White Ultra Low NOx residential gas tank water heaters with the ICON System electronic gas control. docs.bradfordwhite.com Checked 2026-09-29.
The same pattern on other brands
The same count on another maker’s gas control can mean something else.