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8406-157 OBSOLETE
- High Pressure Transducer - Red
Bard part 8406-157 is an OEM high pressure transducer used on select Bard WH Series variable speed wall-mount heat pump systems to convert refrigerant discharge pressure into a stable control signal the inverter and safety logic can use for capacity control, diagnostics, and protective shutdowns. This sensor is identified as the red high pressure transducer and is designed to operate on a typical 0.5 to 4.5 V output range with a 0 to 650 psi pressure range, helping the unit maintain correct operating pressures across changing outdoor and indoor conditions. When a pressure sensor is out of range or drifting, replacing it with the correct Bard OEM transducer helps restore accurate readings and prevents nuisance faults caused by incorrect pressure feedback.
Official replacement(s):
8406-157BX
- High Press Transducer - Boxed Red