Typical culprits include voltage surges

Replacing with a genuine Reznor pressure switch ensures the safety circuit functions within original design parameters

You can manually adjust the mechanical termination from 6 to 106 minutes in one-minute increments by positioning the trippers at the desired intervals

reducing time spent on-site

Carrier HH18HV110 Limit Switch 323269-701 Typical culprits include voltage surgesThe Carrier HH18HV110 is a high precision HVAC temperature limit switch designed for critical thermal protection in heating applications. This SPDT limit switch operates on an automatic reset logic, featuring a specific temperature range: it is engineered to open at 110F and close at 90F. As a genuine OEM Carrier part, the HH18HV110 ensures exact electrical matching for furnace and air handler control circuits, effectively preventing heat exchanger