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Friedrich PH14B Limit Switch
The limit switch is a type of sensor switch in the heat exchanger that makes the determination when the heated air is warmed to a point for the blower to be activated. Limit switches are built because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air.
What are some hints that my chief limit switch is in need of replacing?
- The heating and cooling system will not begin the ignition sequence or run well as it should
- The system is starting to ramp up but then stops on a regular basis
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If you are going to be buying or ordering any Friedrich PH14B replacement part, do your due diligence and make sure of the correct model and also make a visual comparison in order to be sure the correct limit switch is being ordered. There is no need to install it yourself. Look for a professional in your community to pay to install it for you.
Feel free to download your manual for help.
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