checked over unit, found display jumping all over.due to bad connector on display on ribbon cable. Tried to repair to test unit, after some time was unable to get the display to work good enough to get into test mode. Pulled covers and found burnt wires on top rear for heater will need wire harness and display. 10/4/17 removed failed touch screen and heater links, replaced with new. Repaired burnt wire on capacitor, energized unit, checked operation. Unit operating normally at this time.