Viessmann 7839705 Radial Fan 318820-201 Robust Stepper Control: High-resolution bipolar

Robust Stepper Control: High-resolution bipolar driving technology provides stable refrigerant flow and prevents hunting under varying load conditions

meaning it trips at 190°F and can be manually reset once the temperature drops back to 140°F

Direct OEM Compatibility: Specifically engineered to interface with Lochinvar Smart System controls and A

This Armstrong Air HVAC part eliminates common ignition failure codes and short-cycling issues caused by worn or fouled sensors

Does this burner include the igniter or gaskets

Viessmann 7839705 Radial Fan 318820-201 Robust Stepper Control: High-resolution bipolarThe Viessmann 7839705 Radial Fan is a critical combustion blower designed specifically for high efficiency gas condensing boilers. This RG148E 120V replacement fan manages the precise air fuel ratio required for proper modulation and optimal burner performance. As a direct OEM component, it ensures seamless integration with the boilers control logic, preventing ignition failures or flame sensing issues common with non spec blowers. The Viessmann RG148