I have a 2013, just over a year old, model 8531-iv-dclp. Installed in a Monaco Knight 40dft 2013. Apparently they left wires exposed that got into the fan blower (left side facing the furnace) and bore the "plastic blades". I ordered a new fan blower large. Can I receive a schematic of the unit to help me remove and replace the blade/blower? Norman Wiginton 4925 Willard Norris Rd Milton, Fl. 32570 Thanks.