UNIT IN NORMAL OPERATION.
REPAIR:
1) CHECK CONNECTION BETWEEN INDOOR UNIT AND INSPECTION BOARD:
SOLUTION 1) CHECK IF THERE IS A BAD CONNECTION BETWEEN INDOOR UNIT AND INSPECTION BOARD. IF YES, PLEASE FIX CONNECTION
2) CHECK THE MAIN BOARD OF INDOOR UNIT:
SOLUTION 2) CHECK IF THE MAIN BOARD OF INDOOR UNIT IS DAMAGED. IF YES, PLEASE REPLACE INDOOR UNIT PCB
3) CHECK THE INSPECTION BOARD:
SOLUTION 3) CHECK IF THE INSPECTION BOARD IS DAMAGED. IF YES, PLEASE REPLACE INSPECTION BOARD