Error code reference

Bradford White Water Heater Error Code 3 flash

Pressure switch or blower temperature switch not working in open position (failed to close).

SourceBradford White UPV Series - Service Manual: Gas Water Heatersp. 14

Diagnostic procedure

The full 3 flash 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 vent for blockage or improper configuration, check pressure switch tubing, test pressure switch, verify blower spinning to speed, check blower temp switch. See pages 19, 21, 24.

SourceBradford White UPV Series - Service Manual: Gas Water Heatersp. 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

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

Models covered by the manuals that document this code

More models are covered than are listed here.

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