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Lennox G40DF-36B-090 Limit Switch
The limit switch is a type of sensor switch in the air handler that can determine when the heated air is actually warm enough for the blower to be activated. Limit switches were created because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air.
Chief elements of an unhealthy main limit switch
- The HVAC system begins to act differently repeatedly
- System will not begin nor will it stay running even though max temp has not been reached
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If you decide on picking up or purchasing any Lennox G40DF-36B-090 part do your best and make sure of the model number as well as make a visual comparison in order to be sure the right limit switch is the one being purchased. HVAC professionals can be expensive so it is best to shop around to acquire the best rate if money is of great importance to you.
Feel free to download your manual for help.
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