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Carrier 38YCC042 Air Pressure Switch
The actual job of this type of switch is to figure out if the blower fan is running. Some particular air pressure switches may have a reset feature that is manual, from which the switch will have to be manually reset in order for the HVAC system to continue running. This pressure switch is one of the critical devices designed to keep you safe.
Signs that the Pressure Switch has Failed
- The blower fan will not operate properly.
- Incorrect voltage range being read.
- The expected temperature indoors is almost never fully achieved.
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