I have an old Trane System (blu045e924b1), its gas and it all of a sudden stopped working. The fan will come on and if I turn it to ac it works fine.. I don’t know much about HVAC systems but I did do some quick trouble shooting.
• All connections are in good condition.
• The 2 fuses connected to the gas valve/AVG (model 36C03-222) are in good working order.
• Pilot system in good working order. ( I don’t know how to test the Thermocouple but I assume that the pilot would not work if it was bad)
• Thermostat is wired right and in good working order with fresh batteries. It is a newer thermostat and it is on its 2nd season.
Any ideas on how I can get some heat in my house? I am thinking I have a bad gas valve but I would like some help.. Thanks in advance for anything you can do.