The White Rodgers 90-370 Fan Relay is a heavy-duty

it requires a minimum pressure differential to function correctly

installing this factory-authorized part ensures seamless evaporator coil protection

While cleaning connectors might provide a temporary fix

this module provides the precise control logic required for 2-stage heating and cooling applications

MARS 62434 Contactor 321894-708 The White Rodgers 90-370 FanThe MARS 62434 480V 30A 3 Pole Definite Purpose Contactor is built for commercial HVACR systems requiring dependable switching performance in high voltage applications. This 480V HVAC contactor is commonly installed in rooftop units, condensers, refrigeration systems, compressors, and other electrically driven HVAC equipment where reliable motor control is critical. Rated for 30 amps with a 3 pole contactor configuration, the MARS 62434 is designed