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Lennox RL-45 Limit Switch
The limit switch is a type of sensor switch located in the furnace that can determine when the air is warm enough for the main blower to kick in and circulate the air. One big reason why limit switches are designed that way is because if the air never warms up then you will never get hot air through the ducts.
Warnings limit type switch has very little life left
- The HVAC system refuses to start or run well for any significant length if time
- The Lennox system starts to become unpredictable more often than not
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If you decide on picking up or purchasing a replacement limit switch for your Lennox RL-45, do your due diligence and cross-check the correct model and also make a visual comparison in order to be sure the proper replacement limit switch is the one being purchased. Installation of the limit switch is a piece of cake if you have the know-how and have the tools to do it right.
Feel free to download your manual for help.
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