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Carrier FC4B Air Pressure Switch
The primary function of this type of switch is to sense whether the primary air circulator is on and running. Most air pressure switches are equipped with a manual reset feature, from which the switch will have to be manually reset in order for the system to begin normal operations again. This switch is one of the most crucial devices that are created to keep you safe.
Signs to Look Out for when your Pressure Switch is Starting to Fail
- Furnace is unable to operate at all.
- Incorrect voltage reading.
- The desired temp seldom achieved.
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If you decide on picking up or purchasing a replacement air pressure switch for your Carrier FC4B do your best and double check the correct model and also make a visual inspection so that you are positive that the correct replacement air pressure switch is the one being purchased. Make safety your number one priority when you install any HVAC part. If there are any doubts about what you are doing then call a pro. Stay safe.
Feel free to download your manual for help.
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