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Error code reference
Bradford White Water Heater Error Code 5 flashes (V1)
Temperature sensor fault due to damage or resistance out of range.
SourceBradford White Ultra Low NOx Water Heaters - Service Manual: ECO Defender Seriesp. 7
Diagnostic procedure
The full 5 flashes (V1) 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
Verify control is not wet or physically damaged. Turn set point knob to OFF then to PILOT and light pilot. Replace gas valve if five flash status persists.
SourceBradford White Ultra Low NOx Water Heaters - Service Manual: ECO Defender Seriesp. 7
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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