Surburban sf30f furnace not working

[bmlentz17]

I need a little help with this furnace, I bought this 2005 keystone Springdale this summer and this is the first time I have attempted to use the furnance . When I attempted to turn it on via the thermostat. No power appeared to be reaching the furnace. Upon pulling it out and inspecting it I found that the wires were connected in a weird way that I had never seen, first the blue wires which normally run to the thermostat appear to be connected to a brown wire that runs up behind the fridge and disappears into the wall. The red batter wire was disconnected and so was the yellow natural wire. When I looked for a place to hook these sites up in hopes that I would get power, I observed 1 white/blue wire and one white with coming from under the fridge. I'm lost on how to fix this thing any suggestions