Carrier 17122000002564 Circuit Board 320074-702 Precise Fit: Features a standard

Precise Fit: Features a standard 1/4-20 threaded probe rod end for a secure

Common Questions Is the MK-4421 compatible with older Barber Colman linkage kits

this kit should be utilized annually

ensure your power unit requirements match the millivolt output of your current thermocouple setup

This critical flame rectification component ensures the safety and efficiency of the combustion cycle by detecting the presence of a burner flame and signaling the control board to sustain the gas valve opening

Carrier 17122000002564 Circuit Board 320074-702 Precise Fit: Features a standardThe Carrier 17122000002564 Circuit Board is a critical OEM replacement control board specifically engineered for Carrier outdoor units, including the 38MVC009 101 series. Built with advanced microprocessor technology, this board manages the complex sequence of operations for ductless mini split systems and residential condensing units. It serves as the primary communication hub between the thermostat and high voltage components, directly regulating