Bradford White Water Heater Error Code 5 Flash: How to Fix It

Hard 2-4 hours High Severity Verified June 2026
Error Code
5 Flash
Brand
Bradford White
Product Type
water_heater
Severity
High
DIY Difficulty
Hard
Estimated Fix Time
2-4 hours
The Bradford White 5 flash error code indicates a gas control valve sensor failure, which prevents your water heater from properly regulating gas flow and temperature. This is a high-severity issue that requires immediate attention to restore hot water and ensure safe operation.
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Tools You'll Need

How to Fix Error Code 5 Flash

  1. Turn Off Gas Supply and Power

    Never attempt repairs with gas or power still connected. Wait 10 minutes after turning off gas before proceeding.
  2. Check Gas Control Valve Connections

    Do not force connections or use excessive pressure on delicate sensor components.
  3. Test Gas Control Valve Sensor

    Ensure gas supply remains OFF during electrical testing.
  4. Inspect Combustion Chamber

    Allow combustion chamber to cool completely before inspection.
  5. Reset the System

    Follow proper gas appliance lighting procedures in your owner's manual.
  6. Replace Gas Control Valve if Necessary

    Gas line work should only be performed by qualified technicians. Improper installation can cause gas leaks.

Parts You May Need

Gas control valve assembly
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Gas control valve sensor
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Pipe thread sealant
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Gas control valve assembly
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Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
Gas control valve assembly
Check Price on Amazon
Gas control valve sensor
Check Price on Amazon
Pipe thread sealant
Check Price on Amazon
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When to Call a Professional

Call a licensed plumber or gas appliance technician if you're uncomfortable working with gas connections, if gas control valve replacement is needed, if you smell gas at any point, or if the error persists after basic troubleshooting. Most gas control valve replacements require professional installation to ensure safety and maintain warranty coverage.

Frequently Asked Questions

What causes Bradford White 5 flash error code?
The 5 flash error indicates the gas control valve sensor has failed or is providing incorrect readings. This can be caused by sensor corrosion, damaged wiring, debris in the combustion chamber, or normal wear over time.
Is it safe to use water heater with 5 flash error?
No, you should not use the water heater with a 5 flash error. This indicates the gas control system cannot properly regulate gas flow, which poses safety risks. Turn off the gas supply immediately and contact a professional.
How much does it cost to fix Bradford White 5 flash error?
Professional repair typically costs $300-600 for gas control valve replacement including parts and labor. DIY parts cost $150-300 for the gas control valve assembly, but professional installation is recommended for safety.
How long do Bradford White gas control valves last?
Gas control valves typically last 8-12 years with proper maintenance. Factors like water quality, usage patterns, and environmental conditions can affect lifespan. Regular maintenance can help extend valve life.
Can I reset Bradford White 5 flash error myself?
You can try a basic reset by turning the gas control to OFF, waiting 10 minutes, then restarting. However, if the sensor has actually failed, the error will return. Persistent 5 flash errors require professional diagnosis and likely parts replacement.