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Bard part number 5650-008 is an OEM 24V solenoid coil (L27-2003 series) used to actuate a compatible solenoid valve in Bard wall-mounted HVAC equipment, restoring proper valve operation when a coil is weak, open, or overheating. A healthy coil is essential for dependable refrigerant flow control and stable heating and cooling performance, especially in systems that rely on solenoid valves for mode changes or capacity-related functions. Match the part number on your existing coil and confirm application by unit model and serial number to ensure correct fit and electrical compatibility before installation.