or a failing blower capacitor that is preventing the motor from reaching full RPM

providing consistent static pressure performance that off-the-shelf induction motors simply can’t match

000 Amp Interrupting Capacity (AFC) for enhanced safety during circuit faults

Diagnostic Reliability: Prevents nuisance tripping and intermittent furnace lockout issues caused by inferior aftermarket sensors

this is an OEM part specifically optimized for Carrier

Trane SWT3927 Limit Switch 322838-752 or a failing blower capacitorThe Trane SWT3927 Limit Switch is a critical safety component designed for precise thermal regulation in residential and commercial forced air systems. This L155 60F limit switch features a cutout temperature of 155F and a 60F differential, ensuring the heat exchanger does not exceed safe operating parameters. When the plenum temperature hits the high limit setpoint, this genuine OEM Trane part interrupts the burner circuit, preventing equipment