My outside Coleman unit is working, but my indoor EB15B coleman the blower fan want come on. I have tried twisting the red and green wire on the thermostat together but it still don't do anything. If I put it all back together and flip the thermostat to heat then the blower fan comes on. Please give me an idea it is driving me nuts.

Try jumping red & green together at the furnace. If the fan then comes on, there's a problem with the wire.