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Carrier 38GXQ009 Limit Switch
One big reason why limit switches are designed that way is because if the air is not warm enough then the house will never get warm enough. The limit switch has a sensor located in the furnace that senses, or governs, if and when the air is actually warm enough for the main blower to kick in and circulate the air.
Major clues main limit switch is in dire need of a replacement
- The heating and cooling system will not even start or run longer than a minute
- The system begins to runs uneven occasionally
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Before buying or purchasing any Carrier 38GXQ009 part, do your due diligence and make sure of the model number as well as make a visual inspection so that you are positive that the correct replacement limit switch is being ordered. Make safety your number one priority when you install any HVAC part. If you are not exactly sure of what to do next call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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