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International Comfort Products HAC024GKA1 Limit Switch
The limit switch contains a sensor located in the furnace that senses, or governs, when the heated air is actually warm enough for the main blower to kick in and circulate the air. Limit switches are built 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.
Key indicators that my limit type switch really is crapping out?
- The heating and AC system will not begin nor will it stay running for any length of time
- Your system is starting to shut down unexpectedly on more than one occasion
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