Carrier HK02ZA441 Pressure Switch Els PW 17895 ensuring HVAC system protection in

ensuring HVAC system protection in residential and industrial air handlers

allowing authorized personnel to access the controls using the provided key without removing the mounting plate from the wall

If the "check system" light on the access panel is flashing or you hear a continuous snapping/arcing sound

These and other issues often stem from a soot-clogged orifice or a degraded thermocouple that can no longer hold the gas valve open

When testing for continuity

Carrier HK02ZA441 Pressure Switch Els PW 17895 ensuring HVAC system protection inAs a veteran tech, you know that keeping a system within design parameters is non negotiable for longevity. The Carrier HK02ZA441 Pressure Switch is a Factory Authorized Part designed specifically for high pressure monitoring in residential heating and commercial HVAC equipment. This OEM replacement part features a single pole single throw (SPST) configuration rated at 2A @ 24V and 125VA @ 115 230V. Built to strictly adhere to factory specifications,