Troubleshooting by Lamps Si01-40682 Service Diagnosis1. Troubleshooting by LampsOperation Lamp The operation lamp flashes when any of the following errors is detected.1. When a protection device of the indoor or outdoor unit is activated or when the thermistormalfunctions, disabling equipment operation.2. When a signal transmission error occurs between the indoor and outdoor units.In either case, conduct the diagnostic procedure described in the following pages.FT25/35CV1A, FTY25/35CVMAFT50/60CV1ALED Indication The outdoor unit has one green LED (LEDA) on the PCB. The flashing green LED indicatesnormal condition of microcomputer operation.ONOFFIndicator lampsOperation lamp (green)TIMER lamp (yellow)ON/OFF button(R4112)Operation lamp (green)TIMER lamp (yellow)ON/OFF switchAir outletIndicator lamps(R3096)
