Thanks, ***** ***** wires are needed for heating, they connect to an R terminal and a W terminal on any 24 volt thermostat rated for conventional heating, or both conventional heating and cooling.
Remove them from the thermostat and twist them together, if the furnace comes on, replace the thermostat... if the furnace does not come on, then our problem is inside the furnace itself.
In that case
Please attach a well focused, close up photo of the wiring diagram glued inside the service panel, the picture needs to betaken from straight on, in very good light.
You can use the paper clip- icon at the right end of the tool bar at the top of this dialog box to attach it here. Include a picture of the furnace itself with the service panels removed taken from about 8 feet away.
If there is no paper clip-icon, look for the '+attach files' link at left of your send button.
I can mark it up with trouble shooting instructions.
You will need a multi meter ($30 at a hardware store) and some experience working with appliances, let me know a lot about your skill sets in those regards.