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Carrier 25HNA636A0030020 Limit Switch
The limit switch is a switch located in the furnace that decides if and when the air is warm enough so that it may be pushed through the ducts and out the vents. Limit switches are built due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts.
Subtle hints main limit switch is in dire straights
- The HVAC system will not initiate or run even though max temp has not been reached
- The system begins to initiate and then stops often
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Before buying or ordering a new Carrier 25HNA636A0030020 replacement part do your best and double check the correct model and also make a visual inspection so that you are positive that the right limit switch is the one being purchased. Installation of a new limit switch can be quite easy provided you know what you are doing and have the proper tools to do it right.
Feel free to download your manual for help.
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