A.O. Smith All models error codes
Codes
- S03Error codeSensor is not (correctly) connected
- S04Error codeSENSOR ERROR
- S06Error codeSensor is not (correctly) connected
- S11Error codeShort circuit in sensor circuit
- S12Error codeShort circuit in sensor circuit
- S13Error codeShort circuit in sensor circuit
- S14Error codeShort circuit in sensor circuit
- S15Error codeShort circuit in sensor circuit
- S16Error codeShort circuit in sensor circuit
- SW1Error codefor natural gas and 6.4" W.C. for propane - replace low gas switch if supply pressures are maintained above activation point at 100% firing rate and error message persists.
- T1Error codeDamaged cable or defective sensor
- T3Error codeDamaged cable or defective sensor
- the120Error codeVB Models - No Factory Pump • Check for power at the pump motor - if the pump has power but will not start - replace/ repair pump. Make necessary repairs to restore power to pump. • If field installed pump is being powered from the the boiler follow pump power, fuse, and pump relay steps for VW models below. VW Models - Factory Pump Installed • Ensure factory installed pump is running. Read the VB Field Installed Pump Note to the left if this fuse is blown on a VB model using the boiler power supply and/or pump relay. • With a call for heat present check for 120 VAC at pump relay coil from MCB J2 socket pins 1 & 2 (page 29). (normally open) con- tacts are closing with 120 VAC supplied to the pump relay coil. If contacts do not