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Error code reference
Bradford White Water Heater Error Code 1 short flash once per second
Weak pilot signal detected on last call for heat.
SourceBradford White Residential D Series Gas Water Heaters - Service Manual (RG1D30T, RG1D40S)p. 11
Diagnostic procedure
The full 1 short flash once per second 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
See burner inspection on page 13; check pilot tube for blockage/restriction; check pilot electrode for oxidation; check wire damage to pilot assembly or connection at gas valve.
SourceBradford White Residential D Series Gas Water Heaters - Service Manual (RG1D30T, RG1D40S)p. 11
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
1 manual in the MyPros+ library documents this code for Bradford White water heater.
Models covered by the manuals that document this code
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