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International Comfort Products GNE150J20G1 Limit Switch
Limit switches are crucial because if the warmed air is too cool then you will never get hot air through the ducts. The limit switch is a switch located in the furnace that can determine when the air is warm enough for the main blower to kick in and circulate the air.
Key symptoms to watch for in a failing main limit switch
- The whole system begins to act weird frequently
- The heating and cooling system refuses to kick in or run well even though max temp has not been reached
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