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International Comfort Products N9MP1125J20C2 Limit Switch
A normal limit switch is a type of sensor switch in the heating area that makes the determination when the heated air is actually warm enough for the main blower to kick in and circulate the air. Limit switches are built because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
Major symptoms main limit switch is going to die
- The HVAC system starts to runs spotty more than once
- The heating and AC system refuses to kick in or will not stay running even though the desired temperature has not been attained
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