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International Comfort Products C9MPD100J14B1 Limit Switch
The limit switch is a switch in the air handler that senses, or governs, if and when the air is warmed to a point for the blower to be activated. The main reason limit switches are made is due to the fact that if the air never warms up inside the exchanger the you will lose heat in the ducts and the vents will just blow cool air.
Signals main limit switch has to be replaced
- Your system begins to ramp up but then stops time after time
- The HVAC system is unable to start or run even though max temp has not been reached
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