ICON Status Codes
Bradford White Water Heater
Severity: ModerateWhat Does This Error Mean?
The Bradford White ICON gas valve has a status LED that flashes diagnostic codes. Count the flashes between long pauses to identify the fault — common codes are 4 flashes (high-limit trip), 6 (thermopile low), 7 (gas valve fault).
Affected Models
- Bradford White ICON Defender Series
- Bradford White ICON Atmospheric
- Bradford White RG2 ICON
- Bradford White Power Vent ICON
Common Causes
- 1 flash: normal operation
- 4 flashes: temperature exceeded high limit (overheating)
- 5 flashes: thermopile voltage too low (failed thermopile)
- 6 flashes: pilot/thermopile related fault
- 7 flashes: gas valve internal fault
- 8 flashes: temperature sensor problem
How to Fix It
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Count the flashes carefully.
The status LED is on the front of the gas valve. Observe through the inspection window. Count flashes between long pauses — that is the error code (1 to 8).
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For 4 flashes (high-limit trip): allow to cool and check for venting issues.
Wait for the unit to cool fully. Check for blocked venting or excessive insulation around the heater. The high limit trips at unsafe temperatures — fix the cause before resetting.
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For 5 or 6 flashes: replace the thermopile.
These codes typically indicate the thermopile is producing insufficient voltage. Replacement thermopiles for Bradford White ICON units are available from plumbing suppliers.
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For 7 flashes: gas valve replacement required.
An internal gas valve fault means the valve itself has failed. A licensed plumber should replace the gas valve assembly. Do not attempt to bypass or service internal gas valve components.
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For 8 flashes: replace the temperature sensor.
The temperature sensor has failed. Replacement sensors are available from Bradford White or aftermarket suppliers. A plumber can install in about an hour.
When to Call a Professional
Most ICON status codes pointing to internal gas valve faults (7 flashes) require a licensed technician to diagnose and replace. Thermopile and high-limit issues are often DIY-fixable.