View Full Version : Lennox 80uhg help

Jan 23, 2018, 07:18 PM
have not been able to get my heat/cooling to work on auto on a lennox 80uhg. had the repair man out 2 times and said in was the thermostat so I replaced with a honey well rth6580wf still not working on auto. could it be the Control Board or wiring with the thermostat?

Jan 24, 2018, 06:06 PM
Please provide the make and model of the thermostat. Did you set it, or did the repairman? Did he do the install?