Thank you for choosing Dawson’s Electric and Air. I came to your home today to evaluate why the furnace was not working and found that the heat unit was not receiving power due to a broken switch. After operating the switch, the unit turned on, confirming the issue. I replaced the defective switch, and the heat unit is now operating properly. While on site, I also noticed signs of overheating and discoloration on the bus bar, which can indicate a potential safety concern. I provided you with a solution to address this issue and help prevent future problems. If you have any questions or concerns, please feel free to give us a call.