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International Comfort Products N9MP2125J20A1 Limit Switch
This is important 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 located in the furnace that makes the determination if and when the air is warm enough for the blower to be activated.
Major symptoms main limit switch needs a replacement ASAP
- The HVAC system is starting to run inconsistently more often than not
- System will not even start or continue to run longer than 10 minutes
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