Error code reference

Bradford White Water Heater Error Code 12

Flame failure - combustion starts but flame fails during operation.

SourceBradford White EverHot Exterior Tankless Gas Water Heater - Service Manual (IGE-199 Series)p. 23

Diagnostic procedure

The full 12 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
Ensure you have gas to the appliance. Ensure gas type and pressure is correct. Bleed all air from gas lines. Verify dip switches are set properly. Ensure flame rod wire is connected. Check flame rod for carbon build-up.

SourceBradford White EverHot Exterior Tankless Gas Water Heater - Service Manual (IGE-199 Series)p. 23

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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Where this code is documented

2 manuals in the MyPros+ library document this code for Bradford White water heater.

Models covered by the manuals that document this code

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