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Error code reference

Bradford White Water Heater Error Code 6 flashes (V1)

Chamber temperature sensor out of specification; possible short.

Chamber temperature sensor out of specification; possible short.

First step from the service manual

Reset gas control. If persists, replace gas control.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What 6 flashes (V1) means on a Bradford White water heater

The 6-flash error code on a Bradford White water heater with a V1 gas control indicates that the chamber temperature sensor has returned a reading outside its expected operating specification. This sensor is integrated into the gas control valve assembly and monitors the temperature inside the combustion chamber. When the control board detects a resistance value or signal voltage from the sensor that falls outside the acceptable range, it interprets this as either a failed sensor or a short circuit condition within the sensor circuit, and shuts down the burner to prevent unsafe operation.

A short circuit in the chamber temperature sensor circuit typically causes the sensor signal to read an abnormally low resistance value, which the gas control interprets as an unrealistically high temperature. Conversely, an open circuit or degraded sensor element can push resistance out of the high end of the acceptable range. Both conditions trigger the 6-flash fault. Because the chamber temperature sensor is physically embedded within the gas control valve on Bradford White units, it is not a separately replaceable component. The sensor and control are serviced together as a single assembly.

The recommended diagnostic sequence begins with resetting the gas control to clear the fault and determine whether the condition is intermittent or persistent. If the 6-flash code returns after reset, the gas control valve assembly must be replaced. Attempting to operate the water heater while this fault is active is not advisable, as the unit lacks reliable combustion chamber temperature monitoring and cannot safely regulate burner operation.

Source: manufacturer service documentation.

Common causes of 6 flashes (V1)

  1. 01

    Failed gas control valve with integrated sensor

    Part replacement

    The chamber temperature sensor is built directly into the gas control valve and cannot be replaced independently. Internal sensor failure or a short within the assembly is the most common cause of this fault code.

  2. 02

    Short circuit in the sensor circuit

    Part replacement

    A short within the sensor wiring or the sensor element itself causes resistance to drop out of specification, triggering the fault. This condition will persist after reset if the short is sustained.

  3. 03

    Intermittent connection or loose wiring

    Wiring / connection

    A loose or corroded connection at the gas control can cause intermittent sensor signal faults. Inspecting wiring harness connections at the gas control for security and corrosion is a useful first step.

  4. 04

    Overheating event causing sensor damage

    Part replacement

    An episode of excessive combustion chamber temperature can permanently damage the sensor element inside the gas control. If the unit experienced an extended high-temperature condition, sensor degradation is likely.

See the test procedure for each cause

Frequently asked questions about 6 flashes (V1)

What does 6 flashes (V1) mean on a Bradford White water heater?
Six flashes on a Bradford White V1 gas control indicates that the chamber temperature sensor has returned a reading outside its acceptable specification, which can point to a sensor short or a failed sensor element. The gas control shuts down the burner when this fault is detected to prevent unsafe operation. Because the sensor is integrated into the gas control valve, the entire gas control assembly is the primary component involved in this fault.
Will resetting the gas control clear the 6-flash error?
Resetting the gas control is the recommended first step and may clear the code if the fault was intermittent. However, if the 6-flash code returns after the reset, the condition is persistent and the gas control valve assembly will need to be replaced. A reset alone will not correct an underlying sensor short or internal component failure.
How do I fix the 6-flash error on my Bradford White water heater?
Start by resetting the gas control valve according to the instructions on the unit. If the 6-flash code reappears, the gas control valve assembly must be replaced, as the chamber temperature sensor is not a separately serviceable part. Replacement of the gas control valve is typically a job for a licensed plumber or appliance technician due to gas line involvement.
Is it safe to use my water heater when it shows 6 flashes?
No, the water heater should not be operated while displaying this fault code. The 6-flash error means the combustion chamber temperature sensor is not functioning correctly, which prevents the gas control from reliably monitoring burner conditions. Continuing to use the unit without a functioning sensor removes an important safety safeguard.
How much does it cost to repair a Bradford White water heater showing 6 flashes?
Since the fix for a persistent 6-flash error is replacement of the gas control valve assembly, repair costs typically range from around $150 to $400 or more depending on the specific gas control model, labor rates in your area, and whether the unit is under warranty. Checking the remaining warranty on your water heater before purchasing parts is advisable, as gas control components may be covered.

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