When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
Carrier 380B Limit Switch
The limit switch contains a sensor located in the furnace that decides when the heated air is actually warm enough to activate the main blower. Limit switches are crucial because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air.
Main clues critical limit switch will need replacing
- The heating and cooling system refuses to start or continue to run longer that five minutes
- The whole system starts to become unpredictable occasionally
This site contains affiliate links for which I may be compensated
Before buying or purchasing a replacement limit switch for your Carrier 380B, do your due diligence and double check the model number as well as make a visual comparison so that you are positive that the correct replacement limit switch is being ordered. There is no need to replace the part all by yourself. Locate a pro in your town or city to do the job for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
