4115 Disassembly and Assembly Instructions15.1. Indoor Electronic Controllers Removal Procedures1. The Electronic Controller, a Signal Receiver and anIndicator (Fig. 3) can be seen by the below steps:• Remove the 3 caps and 3 screws at the bottom of theFront Grille. (Fig. 1)• Remove the Front Grille by releasing the 3 hooks at thetop of the Front Grille. (Fig. 1)• Unhook the tabs at the Control Board to remove theControl Board Cover. (Fig. 2)• To remove the Electronic Controllers:- Release the 2 Particular Piece. (Fig. 3)- Release the Earth Wire screw. (Fig. 3)- Release the screw holder terminal board. (Fig. 3)- Release the CN-DISP connector. (Fig. 3)- Release the CN-TH connector. (Fig. 4)- Release the hooks that hold the Electronic Controllerand pull out the Electronic Controller. (Fig. 4)- Release the CN-FM connector. (Fig. 4)- Release the AC01 (white) connector. (Fig. 4)- Release the two RY-PWR connector. (Fig. 4)Fig. 1Fig. 2Fig. 3Fig. 4High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceedingwith repair work. Failure to heed this caution may result in electric shocks.