If the motor is getting high voltage but no low-voltage signal from the board

secure wiring

This Source 1 technical component functions as the primary logic board

It is recommended to match the horsepower and program code exactly to the original part

iO HVAC Controls RY-1-HB Relay 328140-751 If the motor is gettingThe iO HVAC Controls RY 1 HB Relay is a high reliability 24 Vac SPDT relay designed for seamless integration into standard handy boxes or snap track mounting environments. Built for professional HVACR applications, this 15 Amp SPDT relay features a rugged printed circuit board with wave soldered components to ensure long term mechanical stability in high vibration settings. The RY 1 HB serves as a critical component for general purpose HVAC switching,