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Error code reference
Bradford White Water Heater Error Code 1 flash per second
Weak pilot signal detected on last call for heat.
SourceBradford White UPV Series - Service Manual: Gas Water Heatersp. 14
Diagnostic procedure
The full 1 flash 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
Inspect pilot per Service Procedure II (page 18): check for unstable pilot, blocked/restricted pilot tube, oxidation on pilot electrode, wire damage, or low gas pressure.
SourceBradford White Condensing PV Series - Service Manual (RC2PV50H, LC2PV50H76)p. 14
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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