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International Comfort Products PGMD24G0906 Limit Switch
Limit switches exist due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts. The limit switch has a sensor in the heating area that decides when the air is warm enough to activate the main blower.
What are the clues to watch out for to know my limit type switch really is in need of a replacement?
- The HVAC system begins to behave differently often
- The heating and AC system will not begin the ignition sequence or run well longer than a minute
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