I've got a woodmaster 4400 wood burner, been great for many years. Today went out and noticed all power was off to the unit, the 15a fuse had blown so I replaced it and after about 30 minutes it was blown again, this time I saw smoke coming from the back of the burner where the two wires attach to the therm-o-disc fan and limit thermostat. I'm going to assume that's the problem because a)it was smoking and b) this season the thermostat reading would occasionally be all over the board up and down for short periods. I can order this part but as far as replacing it, does anyone know the procedure? Am I correct in assuming that once I pull the old one off my coolant/liquid is going to come shooting out at me?