Dwyer Instruments SFI-100-1/2 Indicator 319847-401 Common Questions: What causes this

Common Questions: What causes this rollout switch to trip repeatedly

or the control board flashing a Code 31

allowing technicians to access real-time status through the user interface and review comprehensive boiler error code history for rapid troubleshooting

Always verify the part number on your existing switch before installation

This OEM flue elbow is designed for specific Goodman and Amana gas-fired heating units

Dwyer Instruments SFI-100-1/2 Indicator 319847-401 Common Questions: What causes thisThe Dwyer Instruments SFI 100 1 2 is a field proven midwest sight flow indicator designed for immediate visual verification of fluid movement. Integrated with a 1 2" NPT female connection, this unit features a single window design with a high visibility rotating impeller that provides clear confirmation of flow rates in both liquid and gas applications. Constructed with a heavy duty bronze body and a tempered glass window, it is built to withstand the