Description
The Lennox 46K67 Defrost Control Board is an essential part for heat pump systems. Intended for controlling the defrost cycle during cold climate, this board tracks system sensors for the amount of frost on the outside coil. When needed, it starts a defrost cycle, turning the heat pump around to melt frost, and assures that the system is operating at peak efficiency and that you get consistent heat. The 46K67 defrost control board is found in Lennox heat pump units to prevent ice formation that affects the airflow and reduces heating efficiency.
