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Carrier 50GL060300 Limit Switch
Limit switches were created due to the fact that if the air inside the furnace is too cool the you will lose heat in the ducts and the vents will just blow cool air. The limit switch is a switch located in the furnace that senses, or governs, if and when the air is actually warm enough that it can be circulated throughout the house.
Some clues critical limit switch has very little life left
- The HVAC system is starting to initiate and then stops occasionally
- Your Carrier system will not begin the ignition sequence or continue to run for any length of time
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