Hey guys I need help. Here is the deal. Our gas furnace will come on, get the house to tempeture and shut off. Once it gets cold again, the furnace will come on, but will not ignite. It runs, but just circulates the cold air within the house. Once I shut it off and turn it back on at the thermostat it comes right back on with the heat. It isn't flashing any error codes. It is a 10 year old Trane, if that helps. This problem is very on and off.
thanks in advance,
Tom