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Carrier 48XZ030040300 Air Pressure Switch
The main function of the pressure switch is to determine whether or not the main blower is doing what it is supposed to do. This is just one of the many indispensable aspects of the whole safety system that is intended to keep your family safe and sound. Most air pressure switches can have a manual reset, which means it will have to be manually reset before the HVAC system will continue.
Clues that your Switch is Starting to Fail
- The correct indoor temperature is almost never fully attained.
- Inaccurate voltage range reading from the switch.
- The blower fan is unable to run correctly.
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