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Lennox 13HPD-042 Limit Switch
This is important because if the air never warms up the you will lose all the heat as the air flows through the ducts. A normal limit switch contains a sensor in the heating area that decides when the air is warm enough that it can be circulated throughout the house.
Hints critical limit switch is on its last leg
- The system starts to ramp up but then stops frequently
- Your Lennox system will not begin the ignition sequence or run well as it should
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If you decide on picking up or purchasing any Lennox 13HPD-042 part do your best and double check the model number as well as make a visual comparison so that you are positive that the right limit switch is the one being purchased. Replacing the limit switch can be quite easy assuming you have the time and have the tools to do it right.
Feel free to download your manual for help.
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