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International Comfort Products PGC024K040A Limit Switch
A normal limit switch contains a sensor in the heat exchanger that makes the determination if and when the air is warmed to a point so that it may be pushed through the ducts and out the vents. The main reason limit switches are made is because if the air never warms up then the house will never get warm enough.
Symptoms limit switch will have to be replaced
- The whole system is starting to ramp up but then stops occasionally
- The heating and cooling system will not start nor will it stay running longer than a minute
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