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Carrier PTV Limit Switch
The limit switch contains a sensor located in the furnace that determines if and when the air is actually warm enough for the main blower to kick in and circulate the air. This is important due to the fact that if the air never warms up inside the exchanger then the house will never get warm enough.
Simple indications of an inadequate main limit switch
- The heating and AC system will not start or will not stay running like it ought to
- The Carrier system starts to act weird repeatedly
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If you are going to be buying or ordering any Carrier PTV part do your best and make sure of the correct model as well as make a visual comparison in order to be sure the correct limit switch is the one being purchased. The installing of the limit switch can be quite easy provided you energy and have the proper tools to get it done.
Feel free to download your manual for help.
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