A.O. Smith Water Heater Error Code 6 Flash: How to Fix It

Q: What causes A.O. Smith water heater 6 flash error code?

The 6 flash error code indicates a gas control valve failure. This can be caused by electrical issues within the valve, mechanical failure of internal components, or age-related wear. The valve controls gas flow and must be replaced when this error occurs.

Q: Can I reset the 6 flash error code without replacing parts?

No, the 6 flash error code indicates a failed gas control valve that cannot be reset or repaired. The valve must be replaced to restore proper operation and ensure safety.

Q: How much does an A.O. Smith gas control valve replacement cost?

A replacement gas control valve typically costs $150-400 depending on the model. Professional installation ranges from $200-500 in labor costs. DIY replacement can save on labor but requires gas line work experience.

Q: Is it safe to use my water heater with a 6 flash error code?

No, do not use your water heater when it displays a 6 flash error code. A failed gas control valve can create safety hazards including gas leaks or improper combustion. Turn off the gas supply immediately and replace the valve.

Q: How long do A.O. Smith gas control valves typically last?

Gas control valves typically last 8-12 years depending on water quality, usage, and maintenance. Hard water, high usage, or poor maintenance can reduce valve lifespan. Regular maintenance helps extend valve life.

Abstract

The A.O. Smith water heater 6 flash error code indicates a critical gas control valve failure that prevents your water heater from operating safely. This error means the gas valve is not functioning properly and must be replaced to restore hot water and ensure safe operation.