Carrier HH680300 Limit Switch 326058-757 How do I test if

How do I test if the Carrier HK38EA023 is functioning correctly

offering reliable actuation under varying thermal loads

Confirm your current part number is either VAL10179 or VAL4329

as well as air and sewer gas

Will this fit a 1/2-inch or 5/8-inch shaft

Carrier HH680300 Limit Switch 326058-757 How do I test ifThe 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,