Sporlan 278397-081 Valve 323613-751 or a failing blower motor

or a failing blower motor that cannot move secondary air across the heat exchanger efficiently

Enhanced Durability: Features a moisture-resistant design and high-grade ball bearings for extended service life in outdoor conditions

Constructed with high-grade copper windings and a durable encapsulated housing

a burnt smell near the control box

Key Benefits Optimized System Protection: The W45 MOP charge limits suction pressure to 45 PSIG

Sporlan 278397-081 Valve 323613-751 or a failing blower motorThe Sporlan 278397 081, also identified by model QL171R 08 08, is a high performance 1 2" ODF service valve designed for demanding air conditioning and refrigeration applications. Engineered with a robust brass body and PTFE packing, this front seating shut off valve ensures reliable leak proof performance under high pressure conditions up to 600 psig. Its primary role as a refrigerant service valve is to provide a secure maintenance point for