Bradford White 5 Flashes Error Code — What It Means
When your Bradford White gas water heater displays five flashes followed by a three-second pause on the gas control LED, the control has detected flame when there should not be one. This code is officially listed in Bradford White service manuals as “False pilot flame present.” The control is sensing a pilot flame at a time when no burner should be firing, which indicates a malfunction inside the gas valve itself.
The manufacturer identifies the likely cause as a pilot valve stuck in the open position inside the gas control assembly. Because the pilot valve is an internal component of the sealed gas control unit, the official correction for a persistent 5-flash code is to replace the entire gas control. If you look through the combustion chamber sight glass and see a pilot flame burning when the heater is not calling for heat, that confirms the false-flame condition the control is reporting.
Common Causes
- Pilot valve stuck open The pilot valve inside the gas control has stuck in the open position and allows gas to flow continuously to the pilot, creating a false flame the control detects.
- Failed gas control electronics The flame-sensing circuitry inside the gas control is malfunctioning and reporting a pilot flame that does not actually exist.
- Water damage to gas control Moisture or water infiltration has damaged the gas control’s internal components, causing erratic flame-sensing behavior.
- Physical damage to control The gas control has been physically damaged or cracked, disrupting normal valve operation or sensor readings.
Step-by-Step Fix
- {‘text’: ‘Confirm the five-flash code by watching the LED on the gas control and counting five flashes followed by a three-second pause, repeating in that pattern.’}
- {‘text’: ‘Turn the gas control knob to OFF and wait five minutes for any residual gas to clear before proceeding.’}
- {‘text’: ‘Look through the sight glass or combustion chamber view port with a flashlight to check whether a pilot flame is visible when the control is off or between heating cycles.’}
- {‘text’: ‘Inspect the gas control for wetness or physical damage such as cracks, corrosion, or water stains on the valve body or wiring connections.’}
- {‘text’: ‘Check all wiring connections to the gas control, thermopile, and thermocouple to verify they are tight and free of corrosion or damage.’}
- {‘text’: ‘Replace the gas control if the five-flash code persists and you have confirmed proper wiring, as the manufacturer specifies gas-control replacement for a stuck pilot valve.’}
- {‘text’: ‘Relight the pilot and test after replacement by following the lighting instructions on the heater label, then verify the LED shows normal status and the main burner cycles correctly on a call for heat.’}
Parts Often Needed
| Part | Notes |
|---|---|
| Bradford White gas control valve / ICON or Honeywell-style gas valve | Amazon | Matches your heater model and BTU rating. The entire control must be replaced because the pilot valve is internal and not serviceable separately. |
| Thermopile or thermocouple | Amazon | Order as a precaution during gas-control replacement, since flame-sensing components are often replaced together during valve service. |
When to Call a Pro
Gas control replacement on a water heater involves working with live gas lines and pilot assemblies. If you are not trained in gas appliance service, call a licensed plumber or gas technician to diagnose the five-flash code and replace the gas control. Incorrect installation can create gas leaks, carbon monoxide hazards, or flame-rollout conditions. A professional will also verify proper combustion, venting, and gas pressure after the repair. If your heater is under warranty, contact Bradford White or an authorized service provider before purchasing parts, as the gas control may be covered.