Grundfos 96407079 Pump Head 321142-301 such as the E 02

such as the E 02 lockout

What causes these motors to hum without spinning

System Reliability: Manages critical safety loops including high-pressure cutouts and low-refrigerant sensor inputs to prevent catastrophic compressor failure

Use in systems with constant makeup water containing dissolved oxygen will lead to premature failure of the internal rubber ball

ensuring direct replacement without bracket modifications

Grundfos 96407079 Pump Head 321142-301 such as the E 02The Grundfos 96407079 Pump Head is a professional grade replacement engineered specifically for Grundfos UPS32 series circulators. Designed for high performance hydronic heating and cooling systems, this cast iron pump head features a wet rotor design to ensure silent operation and long term reliability in closed loop applications. It supports a multi speed motor configuration, allowing technicians to fine tune the hydraulic performance and flow rate