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International Comfort Products T9MPD050F12A1 Limit Switch
The main reason limit switches are made is because if the air is not warm enough the you will lose heat in the ducts and the vents will just blow cool air. The limit switch is a switch in the air handler that determines when the heated air is warm enough for the main blower to kick in and circulate the air.
What to see if the chief limit switch is in need of a replacement?
- The HVAC system starts to ramp up but then stops often
- System refuses to kick in or will not stay running like it ought to
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