Description
Lennox 81L76 Control Board C2-3 is the central control unit of several Lennox HVAC devices and equipment, similar to a computer. It is involved in controlling essential system processes to achieve the better comfort and performance. This circuit board receives data from sensors located all over the system and it measures temperatures, fans’ RPM, and safety features. Accordingly, the control board obtains information that in turn provides signals to the compressor and blower motor to either increase or decrease their activity.
