Bradford White Pressure Switch / Venting Fault (Power Vent Models with ICON)

Status light on Bradford White ICON gas control flashes 3 times, then pauses; burner does not run.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Blocked vent or intake, Failed pressure switch, Disconnected or kinked pressure tubing, Inducer motor not running

How to Fix / Troubleshooting

Safety: Turn off power and gas before removing venting or pressure switch tubing. Venting issues can cause carbon monoxide hazards.

Steps:

  • Check vent terminations: Inspect outside intake and exhaust hoods for obstructions. Clear any debris, snow, or nests.
  • Inspect tubing: Ensure the rubber/silicone tube between the inducer and pressure switch is intact, not kinked, and free of water.
  • Test pressure switch: With inducer running (qualified person only), verify the switch closes using a multimeter. Replace if it does not close under proper draft.

If you cannot verify inducer operation or vent sizing, contact a licensed technician for full combustion and venting evaluation.

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Repair Difficulty

Hard 4/5

Required Part

Pressure Switch
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