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Lennox G61MPV-36C-090 Limit Switch
Limit switches are built because if the warmed air is too cool then you will never get hot air through the ducts. The limit switch is a switch in the air handler that makes the determination if and when the air is actually warm enough that it can be circulated throughout the house.
What to see if the limit switch most likely is about to stop working?
- The whole system starts to run erratically on more than one occasion
- Your Lennox system will not even start or run longer that five minutes
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