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Carrier 24AAA5 Air Pressure Switch
The reason for the existence of this type of switch is to determine whether or not the primary blower is blowing air. The majority of pressure switches are equipped with a manual reset feature, from which the switch will have to be manually reset or the whole HVAC system will not continue operation. This is just one of the many indispensable hardware devices made to stop injuries or explosions.
How is it Known when the Switch is Going Bad
- The blower refuses to operate.
- The proper temp is rarely attained.
- Inaccurate volt range reading.
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