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8406-140 OBSOLETE
- Low Pressure Switch 40 PSIG
The Bard 8406-140 low pressure switch is an OEM refrigerant safety control set for a 40 PSIG low pressure cutout on Bard wall mounted HVAC equipment. It monitors suction pressure during operation and helps protect the compressor by opening the control circuit if refrigerant pressure drops too low, which is commonly associated with low charge, airflow issues, or a developing leak. When you are troubleshooting nuisance lockouts or no cooling calls tied to low pressure protection, replacing the switch with the correct Bard part number 8406-140 helps restore the factory designed safety function and proper system operation.
Official replacement(s):
8406-140BX
- Low Pressure Switch 40 PSIG