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International Comfort Products NTV6050FBG1 Limit Switch
The limit switch contains a sensor located in the furnace that determines when the heated air is warmed to a point for the main blower to kick in and circulate the air. Limit switches exist because if the warmed air is too cool then you will never get hot air through the ducts.
Elements of an ineffective main limit switch
- The whole system is beginning to become inconsistent from time to time
- The heating and AC system is unable to start or run longer than 30 seconds
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