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Lennox G40DF-36A-070X Limit Switch
The limit switch is a type of sensor switch in the heating area that decides if and when the air is warm enough that it can be circulated throughout the house. One big reason why limit switches are designed that way is due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts.
Signs main limit switch will not live much longer
- The HVAC system refuses to kick in or will not stay running for any length of time
- The system begins to go through the startup sequence but stops quickly frequently
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Before you decide on buying or purchasing any Lennox G40DF-36A-070X replacement part do your best and double check the correct model as well as make a visual inspection so that you are positive that the correct limit switch is being ordered. Safety is always important when you install any HVAC part. If you are not exactly sure of what to do next call a pro. Stay safe.
Feel free to download your manual for help.
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