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HOME > HVAC > CARRIER > 48XPN048090300 > LIMIT SWITCH

Carrier 48XPN048090300 Limit Switch

One big reason why limit switches are designed that way is because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air. The limit switch contains a sensor located in the furnace that can determine when the air is warmed to a point so that it may be pushed through the ducts and out the vents.

Simple warnings that your main limit switch is crapping out?

The HVAC system is starting to ramp up but then stops repeatedly
The heating and AC system will not begin or will not stay running longer than 30 seconds

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Check eBay to see if your limit switch is in stock!

If you decide on picking up or ordering, do your due diligence and double check the model number and also make a visual inspection in order to be sure the correct replacement limit switch is being ordered. You do not have to install the part by yourself. Search for a pro in your area 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!