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Carrier 38CKC048 Limit Switch
A limit switch was crafted 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 type of sensor switch in the heat exchanger that determines when the air is warmed to a point for the main blower to kick in and circulate the air.
Clues limit type switch has very little life left
- The HVAC system starts to ramp up but then stops from time to time
- The HVAC system is unable to start or run well longer than 10 minutes
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