Troubleshooting with LED
SiMT041509E
49
Service Diagnosis
2. Troubleshooting with LED
2.1
Indoor Unit
Operation Lamp
The operation lamp blinks when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated, or when the thermistor
malfunctions.
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.
Service Monitor
The indoor unit has a green LED (LED A) on the control PCB. When the microcomputer works
in order, the LED A blinks. (Refer to page 9 for the location of LED A.)
2.2
Outdoor Unit
The outdoor unit has a green LED (LED A) on the PCB. When the microcomputer works in
order, the LED A blinks. However, the LED A turns OFF while the standby electricity saving
function is activated and the power supply is OFF.
(Refer to page 11 for the location of LED A.)
Operation lamp
(green)
(R21433)
Summary of Contents for FTKM18PVMK
Page 16: ...SiMT041509E 1 List of Functions Part 1 List of Functions 1 Functions 2 ...
Page 18: ...SiMT041509E 3 Specifications Part 2 Specifications 1 Specifications 4 ...
Page 59: ...SiMT041509E Remote Controller 44 Part 5 Remote Controller 1 Remote Controller 45 ...
Page 118: ...Revision History Month Year Version Revised contents 07 2015 SiMT041509E First edition ...