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• 8408-040 OBSOLETE

• Inlet Thermistor

The Bard 8408-040 inlet thermistor is an OEM temperature sensor used by the unit controls to monitor incoming air temperature and make accurate operating decisions for heating, cooling, and protective functions. When a thermistor drifts out of range or intermittently opens, Bard wall-mounted equipment can experience incorrect temperature readings that lead to nuisance faults, short cycling, or poor comfort control, so replacing it with the correct Bard part helps restore reliable sensor input and proper system operation. Match this part number to your unit model and service literature to confirm the correct sensor location and connector style before ordering.