Dwyer Instruments PG-7000-153-P1 Pressure Switch 320788-703 this ECM blower motor utilizes

this ECM blower motor utilizes advanced electronically commutated technology to adjust speeds dynamically

check the windings for a direct short to ground using a multimeter

and 3L/4L/5L fractional horsepower belts

Designed for reliability in residential and commercial settings

Dwyer Instruments PG-7000-153-P1 Pressure Switch 320788-703 this ECM blower motor utilizesThe Dwyer Instruments PG 7000 153 P1 is a gas pressure switch designed for accurate monitoring and control of low pressure air and gas systems. This differential pressure switch operates within a 1 to 30 inch water column range, making it suitable for HVAC applications involving airflow proving, filter monitoring, and burner system safety. Equipped with an SPDT snap switch, it provides reliable and fast contact response for consistent system control.