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HOME > HVAC > CARRIER > 48XP042090300 > LIMIT SWITCH

Carrier 48XP042090300 Limit Switch

The limit switch contains a sensor in the heating area that makes the determination when the air is warm enough to activate the main blower. The reason limit switches exist 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.

Major symptoms limit switch will need replacing

The HVAC system will not initiate or will not stay running longer than 10 minutes
The whole system is beginning to runs uneven on more than one occasion

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Before you decide on buying or ordering a replacement limit switch for your Carrier 48XP042090300 do your best and make sure of the model number as well as make a visual inspection so that you are positive that the right limit switch is being ordered. Installation of a new limit switch is not difficult assuming you possess the knowledge and have the tools to get it done.

Feel free to download your manual for help.

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Check eBay for your limit switch!