Bard HVAC 8402-075BX Limit Switch it is a sign of

it is a sign of restricted airflow through the heat exchanger

Standard Fitting: Equipped with a knurled 11/32-32 DL male nut for a tool-secure connection to the power unit

try pressing the reset button

While it can be installed in various positions

Always check the flow arrow on the casting to match the direction of gas flow

Bard HVAC 8402-075BX Limit Switch it is a sign ofThe Bard 8402 075BX Limit Switch is a critical safety component designed for precise thermal regulation within Bard wall mount air conditioners and heat pump systems. This specific high limit control features a 7 170F AUTO reset configuration, ensuring the unit cuts power to the heating elements or compressor if temperatures exceed safe operational thresholds, then automatically resets once the plenum cools. Engineered as a direct replacement, the