Carrier HH680300 Limit Switch R-410A As a genuine OEM replacement

As a genuine OEM replacement

Always perform cleaning outdoors to prevent re-entrainment of particles

1-inch NPT connections for standard iron pipe size integration

deep oxidation or cracks in the ceramic insulator require a full replacement of the 632484R flame rod to prevent recurring service calls

Carrier HH680300 Limit Switch R-410A As a genuine OEM replacementThe Carrier HH680300 is an essential OEM L140 15F 3 wire limit switch designed for precision thermal monitoring in residential and commercial furnaces. As a primary safety control switch, it features a fixed 140 degree Fahrenheit cut out setpoint and a 15 degree differential, ensuring the system interrupts operation effectively if the plenum temperature exceeds safe factory limits. This SPDT limit switch is engineered for high cycle reliability,