Troubleshooting with LED
SiUS041829E
66
Part 6 Service Diagnosis
2. Troubleshooting with LED
2.1 Indoor Unit
Operation Lamp
The operation lamp blinks when any of the following errors is detected.
A protection device of the indoor or outdoor unit is activated, or when the thermistor
malfunctions.
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 blinks.
Refer to page 18 for the location of LED.
2.2 Outdoor Unit
The outdoor unit has one green LED (LED A) on the PCB. When the microcomputer works in order,
the LED A blinks.
Refer to pages 20, 21 for the location of LED.
Operation lamp
(m
u
lti-monitor lamp)
(R24043)
Summary of Contents for FTXR-T Series
Page 17: ...SiUS041829E Part 2 Specifications 13 1 Specifications 14 Part 2 Specifications...
Page 125: ...SiUS041829E Check Part 6 Service Diagnosis 121 18 class R25105 1 2 3 4 Multimeter...
Page 127: ...SiUS041829E Check Part 6 Service Diagnosis 123 18 class R20704 W V U DC_P1 DC_N1...
Page 143: ...SiUS041829E Operation Limit Part 8 Appendix 139 4 Operation Limit RX09 12 18RMVJU9 3D092209E...
