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International Comfort Products PGAD60E1K1 Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that makes the determination if and when the air is warm enough for the main blower to kick in and circulate the air. Limit switches exist because if the warmed air is too cool then the house will never get warm enough.
Clues to watch for to know limit type switch has little life left
- System will not initiate nor will it stay running longer that five minutes
- The HVAC system starts to become inconsistent more than once
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