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HOME > HVAC > CARRIER > 38TKB048 > LIMIT SWITCH

Carrier 38TKB048 Limit Switch

The limit switch has a sensor in the air handler that senses, or governs, when the heated air is warm enough that it can be circulated throughout the house. Limit switches are crucial because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.

What signals that my limit type switch really is dying?

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Check eBay to see if your limit switch is in stock!
If you decide on picking up or ordering a new Carrier 38TKB048 replacement part, do your due diligence and cross-check the model number as well as make a visual inspection in order to be sure the right limit switch is being ordered. There is no rule that says you have to install it yourself. Hire someone with experience in your town or city to pay to install it for you.
Feel free to download your manual for help.
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Check eBay for your limit switch!