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Bradford White Water Heater Error Codes
100 error codes for Bradford White water heater models. Each links to the full diagnostic procedure from the service manual.
CodeDescription
0No electrical power to the gas control; control LED is not on or flashing.1 flashGas Control V11 flash (V1)Pilot flame is detected and gas control is powered, waiting for setpoint knob…1 flash every 4 sec (green)Gas Control V21 flash every 4 sec (WR Electronic)White Rodgers Electronic1 flash every 4 sec green (V2)Not an error; indicates pilot is lit and main burner is off1 flash every 4 secondsStand-by mode, waiting for call for heat (no fault); temperature demand is…1 flash every 4 seconds (green)Pilot is lit and main burner is off; gas valve is powered and waiting for…1 flash every sec (green)Gas Control V21 flash every sec (WR Electronic)White Rodgers Electronic1 flash every sec green (V2)Not an error; indicates main valve is open and main burner is lit.1 flash every second (green)Main valve is open and main burner is lit; thermostat is calling for heat and…1 flash per secondWeak pilot signal detected on last call for heat.1 flash/secWeak pilot signal on last call for heat.1 short flash every 4 secondsStand-by mode, waiting for call for heat (no fault)1 short flash once per secondWeak pilot signal detected on last call for heat.1 short flash per secondWeak pilot signal detected on last call for heat.10Air supply or exhaust blockage detected.10 flashes (V1)Insufficient combustion air detected.10 flashes red (V2)Abnormal combustion chamber temperature profile during heating cycle…MyPros+ Max
Get the full diagnostic procedure for any Bradford White water heater error code.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts
- Verified part numbers when replacement is required
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11No ignition12Flame failure14Thermal fuse has activated due to excessive heat exchanger temperature.16Over temperature warning2 flashDamper test circuit not working; damper not in proper position or…2 flashesGas Control V12 flashes (V1)Weak pilot signal detected; system will reset when pilot flame is sufficient.2 flashes (WR Electronic)White Rodgers Electronic2 flashes (yellow)Gas Control V22 flashes yellow (V2)Low thermopile voltage; main valve not turned on.23Flame detected before ignition.24Flame detected after a heating cycle completes.26Vent safety switch opened indicating overheating at the 1st pass collector; gas…29Pressure switch failed to close or open (stuck open).3 flashPressure switch or blower temperature switch not working in open position…3 flashesGas Control V13 flashes (V1)Insufficient water heating; system will reset32Outgoing water temperature sensor is faulty (open or short circuit).33Heat exchanger outgoing temperature sensor is faulty.34Combustion air temperature sensor is faulty.4Low flame sense current.4 flashExcessive tank temperature4 flashesGas Control V14 flashes (red)Gas Control V24 flashes (V1)Excessive tank temperature; system must be reset4 flashes (WR Electronic)White Rodgers Electronic4 flashes red (V2)Temperature cut-out limit reached.5 flashUndesired/false pilot flame present; pilot valve stuck in open position.5 flashesGas Control V15 flashes (red)Gas Control V25 flashes (V1)Temperature sensor fault due to damage or resistance out of range.5 flashes (WR Electronic)White Rodgers Electronic5 flashes red (V2)Water temperature sensor failure.52Modulating solenoid valve signal is abnormal.57Flame rod shorted to ground.58AC line frequency error59Line voltage too low or high.6Flame sensed out of normal sequence (before opening gas valve or after closing…6 flashesWater leak detected by accessory module; excessive amount of water in drain…6 flashes (V1)Chamber temperature sensor out of specification; possible short.6 flashes red (V2)Door temperature sensor failure.6-1 flashFailed to light pilot within 90-second trial for ignition6-2 flashDamper test circuit not working properly during burner operation; damper moved…6-3 flashPilot flame extinguished during run6-4 flashUndesired/false pilot flame sensed out of sequence; pilot valve stuck in open…61Combustion fan failure62Maximum number of retries detected (soft lockout63Maximum number of ignition recycles detected.64Electronics failure.65High water temperature (over 200°F)7 flashFlammable vapor sensor or simulated resistive device fault detected7 flashesGas Control V17 flashes (V1)Gas valve electronic fault detected7-1 flashFlammable vapor sensor or simulated resistive device resistance above 70,000…71SV0, SV1, SV2, and SV3 solenoid valve circuit is faulty.72Flame sensing device is faulty8 flashesGas Control V18 flashes (V1)Standing pilot remains on while setpoint knob is in OFF position; pilot valve…8-1 flashFlammable vapor sensor or simulated resistive device out of specification…8-2 flashTemperature sensor fault; damage to temperature sensor wire or temperature…8-3 flashGas control electronics fault detected; control may need reset or is…8-4 flashGas valve fault detected9 flashes red (V2)Tank leakage detected by accessory module.HeartbeatThermostat calling for heat (no fault)Heartbeat (alternates bright/dim)Thermostat calling for heat (no fault)Heartbeat (alternating bright/dim)Thermostat calling for heat; no fault, tank temperature below set point.Heartbeat alternates bright/dimThermostat is calling for heat (no fault); tank temperature is below set point.LCScale build-up (lime) in the heat exchanger reducing efficiency.LED on continuously (solid)Gas Control V1LED on continuously (V1)Setpoint knob has been recently turned to the OFF position; wait until LED goes…LED strobe (V1)Thermostat calling for heat, no faults; tank temperature is below setpoint of…No flashNo electrical power to gas control; control LED not on or flashing.No LEDGas control is not powered; pilot assembly is not litNo LED (WR Electronic)White Rodgers ElectronicNoneNo electrical power to the control; power switch is in OFF position or supply…Short flash once per secondGas Control V1Solid ON (green/red)Control is in shutdown/OFF mode; setpoint knob was recently turned to OFF…Solid ON (red)Gas Control V2Solid ON (WR Electronic)White Rodgers ElectronicSolid ON red (V2)Not an error; indicates the control is in OFF mode.