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Error code reference

Bradford White Water Heater Error Code 2 flashes

Gas Control V1

Bradford White codesBradford White water heater codes
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What the 2 flashes error code actually means

Your water heater is flashing twice because it cannot detect a strong enough signal from the small pilot flame that keeps the burner ready to light. This usually means the part that senses the pilot flame is worn out, the pilot flame itself is weak or unsteady, or a tiny gas tube feeding the pilot is clogged. The heater will try to fix itself once the pilot flame is strong enough, but you will need to find and correct the underlying problem to keep it running reliably.

Diagnostic procedure

The full 2 flashes procedure

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1
First diagnostic step
See Service Procedure II (Thermocouple/Thermopile Testing) and Service Procedure VI (Pilot Testing/Cleaning).
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More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 2 flashes

Ranked by how often they cause this code
  1. 1Thermopile failure
  2. 2Blocked or restricted pilot tube
  3. 3Unstable pilot flame
  4. 4Thermopile connection or wiring issue
  5. 5Gas control valve (V1) internal fault

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Questions people ask about 2 flashes

What does 2 flashes mean on a Bradford White water heater?
Two flashes on a Bradford White water heater indicates the Gas Control Valve (V1) has detected a weak pilot signal from the thermopile. The thermopile must generate enough millivolt output for the control valve to confirm the pilot flame is present and stable. Until that threshold is met, the unit will not allow the main burner to operate. The heater will attempt to reset automatically once a sufficient signal is detected.
Is a 2-flash error on a Bradford White water heater dangerous?
The 2-flash fault is a safety response, not a hazard indicator. The control valve is withholding main burner operation because it cannot confirm adequate pilot flame presence, which is the intended safe behavior. While the condition itself is not immediately dangerous, you should not attempt to bypass the control or force the unit to operate. Have the underlying cause corrected before returning the unit to service.
How much does it cost to repair a Bradford White water heater showing 2 flashes?
Repair costs depend on the root cause. Pilot cleaning is generally a low-cost service call, typically in the range of $75 to $150 for labor. Thermopile replacement parts are relatively inexpensive, often $15 to $50 for the component, with total repair costs including labor ranging from $100 to $250. If the gas control valve itself requires replacement, costs can range from $200 to $450 or more depending on the model and labor rates in your area.
Can I fix the 2-flash error on my Bradford White water heater myself?
Some causes of the 2-flash code, such as a dirty or blocked pilot orifice, can be addressed by a knowledgeable DIYer following Service Procedure VI for pilot inspection and cleaning. However, testing the thermopile with a millivolt meter and replacing components requires familiarity with gas appliance repair. If you are not comfortable working on gas systems, a licensed technician should perform the diagnosis and any required repairs.
Will resetting the water heater clear the 2-flash error code?
The Bradford White gas control is designed to reset automatically once the thermopile signal returns to an acceptable level. However, if the root cause is a failed thermopile, a clogged pilot tube, or another unresolved issue, the fault will return. A reset without correcting the underlying problem provides only temporary relief if any relief at all.

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