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Carrier 38YCC048 Air Pressure Switch
The reason for the existence of the switch is to determine whether or not the main blower is doing what it is supposed to do. This switch is just one of the many indispensable hardware devices made to keep you from harm. The majority of pressure switches may have a manual reset, which, of course, means that it would have to be reset by hand in order for the HVAC system to continue running.
Symptoms that your System Pressure Switch will go Bad
- The blower can not operate.
- System does not actually get to the right indoor temperature.
- Inaccurate volt reading from the switch.
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