For this job, I worked on a evaluation on this gas furnace system. When I arrived, system was not turning on and control board was throwing an error code. In the code map it showed that there was a restriction in the system, I removed the filter and system came right on. I asked customer for a new filter, and the system started running like normal. Adding on, the thermostat, also showed a bad temperature sensor code, customers mentioned that for 8 years they had been having issues with the thermostat, I offered replacement and customers agreed. System was left running and in better condition than ever. Thank you for choosing Comfort Experts, have a great day!