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Old 11-22-2010, 12:24 AM   #1
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No heat but fan constantly running for Lennox G20R03E-75-3

Burner not burn and hot but fan constantly running. On the web page there are some articles suggesting reset. But how?

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Old 11-22-2010, 06:08 AM   #2
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No heat but fan constantly running for Lennox G20R03E-75-3

No manual reset on that limit. Causes of a limit to trip/fail are air flow too low(plugged coil or filter, lots of registers closed ect) or gas presure too high. The heat exchangers also crack too early but they have a 20 year warranty on it.

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