Bradford White Water Heater Error Code 6-2 flash

The 6-2 flash code means the damper test circuit detected that the flue damper moved out of the fully open position during burner operation. The control system requires the damper to stay fully open throughout the heating cycle to ensure safe exhaust venting. When this condition is detected, the burner shuts down as a safety measure. The unit is designed to auto-reset and attempt normal operation after a 5-minute waiting period.

The control system triggers the 6-2 fault specifically as a safety response to a potential exhaust venting issue. If the damper is not fully open during burner operation, combustion gases could be restricted from exiting properly. The burner shuts down when this fault is detected, which limits immediate risk, but the underlying cause should be diagnosed and corrected before continuing normal operation to ensure safe venting.

Repair costs depend on the root cause identified during diagnosis. A service call alone typically runs in the range of $75 to $150. If only wiring or a connector needs attention, total costs may stay relatively low. Replacing a damper actuator assembly or damper unit can add $100 to $300 or more in parts, while a control board replacement can range from $150 to $400 or higher depending on the model. Getting a diagnosis before committing to parts is the best approach.

Some causes of the 6-2 error, such as a mechanical obstruction or a loose wiring connector, can be addressed by a knowledgeable DIYer following the damper removal and installation procedure on page 16. However, replacing the damper actuator, position switch, or control board involves working near the gas train and electrical components, which is best handled by a licensed technician. If the error returns repeatedly after the auto-reset, professional diagnosis is strongly recommended.

Yes, the 6-2 flash error includes an automatic reset after a 5-minute lockout period. The control board will attempt to resume normal operation without requiring manual intervention. However, if the root cause of the damper fault has not been resolved, the error will likely return after the next burner cycle, and repeated faults should be investigated rather than relying solely on the auto-reset function.