They were called for a intermittent system problem. The first technician trouble shot the system and installed a used Trane XL1050 thermostat. The system appeared to work so he charged us $801.75 which was $578 for the xl1050 and S223.75 for labor. Five minutes after he left the system crashed. We called home office and they referred us to another technician. He came out and again trouble shot system. He then installed a Trane xl850 thermostat. They changed the model number of the thermostat on the original receipt to reflect the zxl850 but they left the price of the xl850 at the same price as the xl 1050 even though the xl850 lists for $375 on line. They insisted there was no error in there. A problem then appeared in that the xl850. It is for a system that has a primary and emergency supply. The only way we can get the auxiliary heat to come on is to manually set it on using the thermostat. Our system is a dual fuel system that requires the thermostat to automatically switch systems at a given temperature which an xl824 thermostat is designed for and lists for $379. Now I'm being told the control board for the furnace needs to be replaced and it costs $1400. Really? Does that mean that after paying for a service call to fix my system that didn't fix my system I need to replace the control board. If I agree to that the question I have is do I get to return the xl850 and have my old thermostat reinstalled and get the $801 refunded?
