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• 8402-039 OBSOLETE

• FAN & LIMIT CONTROL L4064T1848

Bard part 8402-039 is an OEM fan and limit control (L4064T1848 style) used to manage blower operation and provide a temperature safety limit based on plenum temperature in Bard HVAC equipment that uses a combination fan-limit controller. This control helps bring the blower on after the heat exchanger warms up, keeps the fan running to extract residual heat after the heat call ends, and opens the high limit circuit if temperature rises to an unsafe level, helping protect the unit from overheating. Because L4064 series controls come in different sensing element insertion lengths, setpoint ranges, and wiring configurations, match 8402-039 to your unit model and existing control before ordering to ensure proper fit and correct operation.