Bradford White Temperature Sensor / ECO Fault (ICON Control)

Status light on Bradford White ICON gas control flashes 4 times, then pauses; heater will not operate.

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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

Open tank temperature sensor, Tripped ECO, Faulty gas control valve temperature circuit, Wiring damage to sensor

How to Fix / Troubleshooting

Safety: Turn gas control to OFF and allow the tank to cool. Turn off electrical power if present.

Steps:

  • Inspect sensor wiring: Check the small sensor harness from the tank to the ICON control for damage or disconnection.
  • Reset ECO (if external): Some models have an external ECO reset button. Press to reset if present.
  • Test sensor: With power off, measure resistance of the sensor and compare to Bradford White specs. Replace if open/shorted.

If the fault remains, the ICON gas control valve is likely defective and must be replaced by a qualified technician.

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Repair Difficulty

Hard 4/5

Required Part

Tank Temperature Sensor / ECO
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