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International Comfort Products GPCM24K040F Limit Switch
This is important because if the air never warms up then you will never get hot air through the ducts. The limit switch is a type of sensor switch located in the furnace that senses, or governs, when the air is warmed to a point so that it may be pushed through the ducts and out the vents.
What warnings should I watch out for to know if my limit switch is almost going bad?
- The heating and cooling system is unable to start or run well for any length of time
- The HVAC system starts to shut down unexpectedly repeatedly
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