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Carrier 42C Air Pressure Switch
The reason for the existence of the air pressure switch is to determine whether or not the primary blower is actually running. This pressure switch is just one of many devices designed to keep your family safe and sound. Various air pressure switches are programmed with a manual reset, which means it will have to be manually reset in order for the HVAC system to continue running.
Red Flags that your Switch will Fail Soon
- The furnace won't ignite the gas.
- Incorrect volt range being read from the pressure switch.
- The proper temperature is hardly ever attained.
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If you decide on picking up or purchasing, do your due diligence and double check the correct model as well as make a visual comparison in order to be sure the correct air pressure switch is the one being purchased. HVAC professionals can be expensive so you could call around to find a good deal if money is a concern.
Feel free to download your manual for help.
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