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International Comfort Products C9MPD100J20A1 Limit Switch
Limit switches are built because if the air never warms up then the house will never get warm enough. The limit switch has a sensor located in the furnace that makes the determination when the heated air is actually warm enough so that it may be pushed through the ducts and out the vents.
What signals that my main limit switch has to be replaced?
- The HVAC system starts to runs uneven repeatedly
- The heating and AC system will not begin or will not stay running even though max temp has not been reached
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