A Carrier HVAC HR680055 Flow Switch detects fluid movement and changes contact status to regulate response within the climate-control unit.
The flow switch monitors fluid movement within the HVAC system and signals the controls when proper flow is present so operation can proceed safely and as intended. Its design and construction matter because accurate sensing and dependable internal switching protect the heating and cooling unit from operating under improper flow conditions that could reduce performance or cause damage.
The flow switch may be nearing replacement if the heating and cooling equipment shows intermittent operation, flow-related shutdowns or control faults that could indicate inconsistent sensing. Physical signs can include wear, corrosion or moisture around the switch body and connections and environmental signs may include debris buildup or prolonged exposure to harsh conditions that might affect reliability.
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