Inquiry (采购产品): Columbus Electric Thermostat Operation Ladies and Gentlemen: I have a Columbus Electric Thermostat, Model #MT411 SN C0015358 00-027 95-100-20, operating my Lenox 11 seer Air Conditioning/Heating system here in Punta Gorda, Florida. This morning as I called for heat the air temperature screen intermittently showed the air temp. and then LO, and didn't de4liver heat. Could you please inform me as to what is going on and what I should do to deal with this situation. I do not have an operation manual, even though the system was installed three or four years ago, while we were residents of the home. Could I please purchase an operations manual for this thermostat as well as hearing from you as to how I should respond to the indication of L0 from the thermostat? Thank you Dr. Paul Dow Dawson 318 Maranon Way Punta Gorda, Florida 33983 1-941-235-0197 pdawson@comcast.net **** Hidden Message ***** Paul Dawson 318 Maranon Way Punta Gorda, FL 33983-5741 USA Company: Edison College Title: Dr. Phone: 1-941-235-0197 Fax: same E-mail: pdawson@comcast.net **** Hidden Message ***** pdawson@comcast.net