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Bard 5651-174 - Expansion Valve
Bard part number 5651-174 is an OEM expansion valve used in Bard wall-mounted air conditioners and heat pump systems to meter refrigerant into the evaporator based on load, helping maintain proper superheat for stable cooling performance and compressor protection. When an expansion valve sticks, hunts, or restricts flow, symptoms often include poor capacity, coil icing, or erratic suction pressure, so replacing it with the correct Bard factory part helps restore the designed refrigerant control and system reliability. Confirm compatibility by matching the full part number 5651-174 to your unit model and serial before ordering, since valve sizing and connections vary by system and refrigerant application.
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