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Lennox G40DF-24A-045 Limit Switch
A normal limit switch is a switch in the heating area that determines when the air is warmed to a point that it can be circulated throughout the house. The reason limit switches exist is because if the warmed air is too cool the you will lose all the heat as the air flows through the ducts.
How do you know when your critical limit switch is not working right?
- System refuses to kick in or run longer than a minute
- The system is beginning to behave differently time after time
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Before buying or purchasing, do your due diligence and double check the model number and also make a visual inspection so that you are positive that the proper replacement limit switch is being ordered. If you are unsure about installing the new limit switch on your own then it would be in your best interest to consult a pro to do the replacement of the part.
Feel free to download your manual for help.
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