I'd like to know how to program our Lennox 37L59 thermostat properly. It is stuck on "HOLD" and even if I change temperature, it's not doing anything. I can hear the A/C turning on and off, but the temperature its in does not change.

Asked by Helen on 03/16/2012 0  Answer

ManualsOnline posted an answer 12 years, 6 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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