Direct OEM Compatibility: Engineered specifically for York systems to ensure accurate -0

This Johnson Controls A99 series sensor is fully compatible with A421 electronic temperature controls

Specifically designed for Weil-McLain CGa

Replacing it with a single-pole variant can bypass critical safety protocols or cause control board errors

Lennox 81L76 Control Board Els PW 17895 Direct OEM Compatibility: Engineered specificallyThe Lennox 81L76 Control Board, also identified by part number 81L7601, is the critical OEM replacement integrated furnace control for various mid to high efficiency residential units. As an essential HVAC circuit board replacement, this component manages the timing and sequencing of the induced draft motor, gas valve, and blower motor. Designed for Lennox furnace repair, the 81L76 utilizes a C2 3 control board architecture to ensure stable