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Carrier 51CM Air Pressure Switch
The reason for the existence of the air pressure switch is to figure out if the primary blower is blowing air. This is just one of the many indispensable safety creations designed to stop injuries or explosions. Some particular air pressure switches are equipped with a manual reset feature, from which the switch will have to be manually reset in order for the HVAC system to continue running.
What Signs are Present when the Switch is Starting to Fail
- System does not actually get to the right temp.
- Your furnace will not operate at all.
- Inaccurate volt range reading.
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If you are going to be buying or purchasing any Carrier 51CM replacement part, do your due diligence and cross-check the model number and also make a visual inspection so that you are positive that the right air pressure switch is the one being purchased. You do not have to install the replacement part alone. Search for a pro locally to do the job for you.
Feel free to download your manual for help.
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