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International Comfort Products PGMD48G1354 Limit Switch
The limit switch is a switch in the heat exchanger that determines when the air is warmed to a point for the air to begin normal home circulation. Limit switches were created due to the fact that if the air never warms up inside the exchanger the you will lose all the heat as the air flows through the ducts.
What are some indications that my limit switch has a need to be replaced?
- The HVAC system starts to act weird repeatedly
- System refuses to kick in nor will it stay running longer than 10 minutes
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