Carrier HH18HA461 Manual Reset Limit Switch 160F

The Carrier HH18HA461 is a manual reset limit switch which is a safety device used in most of the Carrier HVAC products such as furnaces and air handlers. It is essential in protection through the breaking of the power supply to the system at a certain temperature that is predefined normally due to failure or any danger. In the case of the HH18HA461, it is designed to trip at 160°F. This may be because of a air filter which may limit air flow into the evaporator coil, a blower that may not work properly in exchange for heat condition, or a faulty burner that can lead to overheating.