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Carrier 48XZN048130300 Limit Switch
A normal limit switch is a switch in the heat exchanger that makes the determination when the air is actually warm enough that it can be circulated throughout the house. Limit switches exist because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Red flags main limit switch has to be replaced
- The system is starting to shut down unexpectedly more often than not
- The HVAC system will not start nor will it stay running even though max temp has not been reached
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If you decide on picking up or purchasing, do your due diligence and double check the model number and also make a visual comparison in order to be sure the right limit switch is being ordered. HVAC professionals can be expensive so you could call around to acquire the best rate if money is of great importance to you.
Feel free to download your manual for help.
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