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Carrier 38TZA042 Air Pressure Switch
The job of the pressure switch is to sense if the main blower is doing what it is supposed to do. A lot of switches are constructed with a manual reset, which means you have to physically reset it in order for the HVAC system to continue running. This switch is one of the vitally important safety devices designed to keep you from harm.
Signals that the Pressure Switch is Failing
- Wrong volt running through the switch.
- The expected temperature is rarely reached.
- Furnace can't run.
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Before you decide on buying or purchasing, do your due diligence and make sure of the correct model and also make a visual comparison in order to be sure the correct replacement air pressure switch is the one being purchased. You do not need to install the replacement part alone. Hire a pro in your community to replace the part.
Feel free to download your manual for help.
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