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Error code reference

Bradford White Water Heater Error Code 9 flashes red (V2)

Tank leakage detected by accessory module.

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What the 9 flashes red (V2) error code actually means

Your Bradford White water heater has detected a water leak somewhere on or around the unit and has shut itself down as a safety precaution. This could be something as simple as a dripping valve or a loose fitting, or in more serious cases, a leak in the tank itself. You should inspect the unit carefully and have a plumber or technician locate and repair the source of the leak before restarting the heater.

Diagnostic procedure

The full 9 flashes red (V2) procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check T&P valve. Check all water fittings. Pressurize and leak test tank.
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 9 flashes red (V2)

Ranked by how often they cause this code
  1. 1T&P Relief Valve Leaking or Weeping
  2. 2Loose or Corroded Water Fittings
  3. 3Tank Pinhole or Seam Failure
  4. 4Accessory Leak Sensor Triggered by Condensation
  5. 5Drain Valve Seeping

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Questions people ask about 9 flashes red (V2)

What does 9 flashes red (V2) mean on a Bradford White water heater?
Nine red flashes on a Bradford White V2 control indicate that an accessory leak detection module has sensed water somewhere around the unit. The heater shuts down in response to protect against water damage. This fault requires a physical inspection and pressure test to locate the source of the leak before the unit can be safely returned to service.
Is a 9 flashes red error on my Bradford White water heater a safety emergency?
It can be, depending on the source of the leak. A heavily leaking tank or a failed T&P valve can cause significant water damage or indicate unsafe pressure levels within the system. If you notice active water pooling, running water sounds, or a discharge from the T&P valve pipe, shut off the water supply to the heater and contact a technician promptly.
Will resetting the water heater clear the 9 flashes red code?
Resetting the control may temporarily clear the fault code, but the code will return if the underlying leak has not been repaired. The accessory leak detection module will continue to trigger the fault as long as moisture is present at the sensor location. The root cause must be identified and corrected before a reset will result in normal sustained operation.
Can I fix the 9 flashes red fault myself?
Some causes, such as a loose fitting or a seeping drain valve, may be within reach of a skilled DIYer with basic plumbing tools. However, a failed T&P valve or a tank leak requires parts replacement, and a cracked or corroded tank requires full unit replacement. A thorough leak test should be performed before attempting any repair to correctly identify the source.
How much does it cost to repair a Bradford White water heater showing 9 flashes red?
Repair costs vary widely based on the cause. Replacing a T&P relief valve typically falls in the range of $75 to $200 including labor. Fixing a leaking fitting or flex connector may cost $50 to $150. If the tank itself has failed, full water heater replacement costs generally range from $800 to $2,000 or more depending on unit size, fuel type, and local labor rates.

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