A "burning smell" can also indicate a safety issue if overheating electrical components go unchecked.
"We would set the thermostat for 71 and by 2pm will lose ground and by 6pm will be 78/79." ...
Alright HVAC experts, here's your chance to show off your diagnosis skills: We have a 2006 Lennox G50UHi furnace, and we replace the filters regularly, have it cleaned, etc. The only odd thing that we ...