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HOME > HVAC > CARRIER > 38TPA042 > LIMIT SWITCH

Carrier 38TPA042 Limit Switch

A normal limit switch is a type of sensor switch located in the furnace that decides if and when the air is actually warm enough so that it may be pushed through the ducts and out the vents. One big reason why limit switches are designed that way is due to the fact that if the air inside the furnace is too cool then the house will never get warm enough.

Chief elements of a bad limit switch

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Check eBay to see if your limit switch is in stock!
Before you decide on buying or ordering, do your due diligence and cross-check the model number and also make a visual inspection in order to be sure the correct replacement limit switch is being ordered. Once you have the part to install the replacement part alone. Hire someone with experience locally to replace the part.
Feel free to download your manual for help.
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Check eBay for your limit switch!