The Amana-Goodman 10728324 Limit Switch—specifically the L135-40F model—is a critical safety component designed to monitor plenum temperatures

When troubleshooting pressure switch stuck open codes or intermittent furnace lockouts

This module is rated for 5A resistive at 120/240VAC

5% regardless of temperature or voltage fluctuations

determined by looking at the discharge side of the fan

York S1-031-02986-000 Control Board 326058-756 The Amana-Goodman 10728324 Limit Switch—specificallyThe York S1 031 02986 000 Control Board is a critical OEM replacement furnace control module designed to manage the ignition sequence and blower motor timing for York, Coleman, and Luxaire HVAC units. This microprocessor based control ensures safe and efficient operation by regulating voltage to the inducer, gas valve, and blower assembly. As an authentic S1 031 02986 000 HVAC part, it provides precise blower delay board functionality, which is