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Carrier 40MFC012 Air Pressure Switch
The function of the switch is to sense if the blower fan is doing what it is supposed to do. Various air pressure switches can have a manual reset, which, of course, means that it would have to be reset by hand in order for the system to begin normal operations again. This switch is one of the key mechanisms designed to stop injuries or explosions.
Signs that the HVAC Air Pressure Switch is Beginning to Go Bad
- The set temp is almost never achieved.
- Inaccurate voltage being read from the pressure switch.
- Your heating and cooling system will not function properly.
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Before buying or purchasing do your best and cross-check the correct model as well as make a visual comparison so that you are positive that the right air pressure switch is being ordered. Once you have the part to install it yourself. Find a professional in your town or city to pay to install it for you.
Feel free to download your manual for help.
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