1. The Electronic Controller, a Signal Receiver and anIndicator (Fig. 3) can be seen by the below steps:• Open the Intake Grille and remove the screw at the frontof the Front Grille. (Fig. 1).• 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)2. To remove the Main Electronic Controller:• Release the 2 Particular Piece. (Fig. 3)• Release the CN-REC/DISP connectors. (Fig. 4)• Release the CN-TH connector. (Fig. 4)• Release the CN-MAIN connector. (Fig. 4)• Release the CN-STM1 connector. (Fig. 4)• Release the CN-STM2 connector. (Fig. 4)• Release the hooks that hold the Electronic Controller.(Fig. 3)3. To remove the Power Electronic Controller:• Release the CN-001 connector. (Fig. 4)• Release the CN-002 connector. (Fig. 4)Fig. 1Fig. 2Fig. 3Fig. 412.4. Indoor Electronic Controllers Removal Procedures77
