Bradford White Error Code F6: Flammable Vapor Lockout
How to Fix Bradford White Code F6
- Step 1: Immediately shut off the gas supply to the water heater at the shut-off valve on the gas supply line.
- Step 2: Do not attempt to relight the water heater. Do not use any electrical switches or devices that could create a spark.
- Step 3: Open windows and doors to ventilate the area.
- Step 4: Evacuate the premises and call a qualified HVAC technician or your gas provider from a safe location.
What Does Bradford White Error Code F6 Mean?
The F6 error code on your Bradford White water heater indicates a 'Flammable Vapor Lockout.' This is a serious safety concern. The unit's control system has detected the presence of flammable vapors near the burner and has shut down to prevent a potential fire or explosion. This safety feature is designed to protect you and your home. Specifically, the gas control valve has locked out and will not allow the burner to ignite. This lockout is triggered by the FV sensor (flammable vapor sensor) detecting a concentration of flammable vapors above a safe threshold. The system is designed to remain locked out until the issue is resolved and manually reset by a qualified technician. Continuing to try and reset the unit without addressing the underlying cause is dangerous.
Common Causes of Bradford White Code F6
- Gas leak near the water heater (natural gas or propane)
- Spilled flammable liquids (gasoline, solvents, paint thinner) near the unit
- Malfunctioning FV (flammable vapor) sensor
- Improper venting, causing flue gases to back up into the room
- Leak in the gas line or gas valve within the unit
Applicable Bradford White Models
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This error requires immediate attention from a licensed HVAC technician. Do not attempt repair yourself.
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