I have a XE90 trane furnace that stopped working. If you raise the thermostat to start the heat it clicks on but the intake doesn't pull air in. We aren't sure if it is the thermostat or a transformer. There is no reset switch that I can see. I don't have any info on this Trane. We only bought the house 2 years ago. The unit was purchased 7 yrs ago, by the previous owner. Can anyone help?