Carrier HK02ZA436 Pressure Switch 318172-701 suggesting the refrigerant filter drier

suggesting the refrigerant filter drier is saturated or clogged

It provides precise refrigerant flow regulation and simplified installation for contractors looking to protect compressors from damage caused by low suction pressure during colder months

this filter provides a high dust-holding capacity without causing excessive pressure drop across the evaporator coil

and technicians from high-speed rotating fan blades during operation

If the LED is completely off during a call for heat

Carrier HK02ZA436 Pressure Switch 318172-701 suggesting the refrigerant filter drierThe Carrier HK02ZA436 is a professional grade high pressure switch engineered for critical refrigerant monitoring in industrial refrigeration and air conditioning systems. As an essential safety component, this HVAC pressure switch features a 290 PSI cutout and a 185 PSI cut in, providing a precise 290 185 pressure range. When system pressure exceeds the preset limit, the switch breaks the electrical circuit to the compressor, preventing catastrophic