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Carrier 45-4SI Air Pressure Switch
The main function of the air pressure switch is to sense if the blower is doing what it is supposed to do. The air pressure switch is a vital device of the collection of safety devices that is in place to keep you safe from harm. Most air pressure switches are issued with a manual reset feature, which means it will have to be manually reset or else the system will cease to function.
What to Look Out for when the System Pressure Switch is on its Last Leg
- The correct indoor temperature is almost never fully attained.
- Bad volt range running through the pressure switch.
- Your furnace will not operate at all.
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