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Carrier 38SYG042 Limit Switch
The limit switch has a sensor in the heating area that decides if and when the air is warmed to a point for the blower to be activated. This is important because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
Symptoms limit switch needs a replacement ASAP
- The heating and AC system will not begin or will not stay running as it should
- The HVAC system starts to behave erratically on a regular basis
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If you decide on picking up or ordering do your best and cross-check the model number and also make a visual inspection in order to be sure the correct limit switch is being ordered. Once you have the part to replace the part all by yourself. Find a professional locally to replace the part.
Feel free to download your manual for help.
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