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Troubleshooting with LED
SiBE041525F
45
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.
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 12, 13 for the location of LED
A.)
Operation lamp
(green)
(R23077)
ON/OFF
Summary of Contents for ARX20K2V1B
Page 12: ...SiBE041525F 1 List of Functions Part 1 List of Functions 1 Functions 2 ...
Page 15: ...SiBE041525F Specifications 4 Part 2 Specifications 1 Specifications 5 ...
Page 16: ...Specifications SiBE041525F 5 Specifications 1 Specifications See corresponding databook ...
Page 51: ...SiBE041525F Remote Controller 40 Part 5 Remote Controller 1 Remote Controller 41 ...