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International Comfort Products PGMD60G1504 Limit Switch
The limit switch contains a sensor in the air handler that decides if and when the air is warm enough for the blower to be activated. Limit switches exist due to the fact that if the air never warms up inside the exchanger the you will lose heat in the ducts and the vents will just blow cool air.
Major warnings limit switch will have to be replaced
- System refuses to kick in nor will it stay running longer than 10 minutes
- Your system is starting to runs spotty more often than not
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