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Mitsubishi MUZ-GE09NA 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 in the heating area that makes the determination if and when the air is warmed to a point for the main blower to kick in and circulate the air.
What red flags are there that my chief limit switch needs replacing?
- The heating and AC system refuses to start or run like it ought to
- The HVAC system starts to go through the startup sequence but stops quickly on a regular basis
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