A trip usually indicates restricted airflow due to a dirty filter

The Carrier HR54ZA003 Door Switch is a critical OEM safety interlock designed to ensure secure blower compartment closure before system engagement

Dual-Rated Voltage: Operates at both 370V and 440V

though the fiber gasket should be inspected regularly for wear to ensure a secure seal

OEM Standards: Matches exact electrical tolerances required to maintain the hermetic refrigeration cycle

Amana-Goodman B1370187 Limit Switch A trip usually indicates restrictedThe Amana Goodman B1370187 Limit Switch is a critical OEM safety component engineered for high static furnace environments. As a primary auto limit switch, it monitors internal plenum temperatures to protect the heat exchanger from hazardous overheating. This specific model is calibrated with a 160 degree F cutout and a 130 degree F cut in reset point, ensuring the system interrupts the heating cycle if airflow becomes restricted due to a clogged