What was found
RIGHT FWD OVERHEAT ILLUMINATED PERFORMED WINDOW HEAT CONTROL UNIT TEST. REF AMM TASK 30-41-710-801. REQUEST MEL. MEL 3041D UNABLE TO DISPATCH DUE TO ICING PLACED WHCU ON P4-2 IN THE OVERRIDE MODE PER AMM30-41-11-440-801. NOTICED STRONG ELECTRICAL BURN SMELL IN THE E&E COMPARTMENT. PLACED ALL WINDOW HEAT SWITCHES IN THE OFF POSITION. WHILE TROUBLE SHOOTING WINDOW HEAT PROBLEM, RIGHT WINDOW HEAT CONTROL BREAKERS ARE PULLED AND COLLARED. CONFIRMED NEEDS NEW CONTROLLER. BREAKERS PULLED IAW AMM 30-41-11 REMOVED AND REPLACED #2 WHCU PER AMM WINDOW HEAT CONTROL UNIT - REMOVAL/INSTALLATION REFERENCE: 30-41-11/401. NONFAULT FOUND ON LRU. OPS CHECK GOOD.PARTS USED: 29-3041-9-0004,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1393825 SN OFF 7230.CONTROLLER, ASS OFF 29-3041-9-0004 7230 ON 29-3041-9-0004 7828.