Troubleshooting - SkyAir Indoor Unit
Si18-201
250
Service Diagnosis
2.4
Troubleshooting by LED on the Indoor Unit’s
Foreword
Troubleshooting can be carried out by service monitor LED (green). (Blinks when normal)
4
: LED on
3
: LED off
5
: LED blinks — : No connection with troubleshooting
Note:
1. If LED-B is off, the transmission wiring between indoor and outdoor unit may be incorrect or
disconnected. Before performing the previously described troubleshooting, check the
transmission wiring.
2. Troubleshoot by turning off the power supply for a minimum of 5 seconds, turning it back on,
and then rechecking the LED display.
General
Precautions
when Performing
Maintenance
1. When disconnecting the fasten terminal from the PC board, hold down the PC board with
your finger and do not apply excessive force. Also, do not hold the neck of the fasten
terminal and pull the lead wire.
2. Do not use a mega tester on the secondary side (transformer secondary side) of the
electronic circuitry.
3. Even when not energized, beware of static electricity when touching parts or pattern. (If
handling PC board when dry [winter], be sure to discharge the electrostatic charge by
grounding. Do not touch any other grounded metal parts with your fingers.)
Microcomputer
Normal Monitor
Transmission
Normal Monitor
Contents/Processing
H1P (LED-A)
H2P (LED-B)
5
5
Normal
→
Outdoor unit
5
4
Failure of indoor unit PC board ass’y
3
If outdoor unit’s LED-A blinks, failure of indoor unit PC
board ass’y (Note 1)
4
—
Failure of indoor unit PC board ass’y (Note 2)
3
Malfunction of power supply or failure of PC board ass’y
(Note 2)
Содержание BPMK928B42
Страница 9: ...Si18 201 viii Table of Contents ...
Страница 71: ...Specifications Si18 201 58 Specifications ...
Страница 206: ...Si18 201 Remote Controller Operations 193 1 1 2 FVX25 35KZ ...
Страница 207: ...Remote Controller Si18 201 194 Operations 1 1 3 FTXD25 35KZ ...
Страница 208: ...Si18 201 Remote Controller Operations 195 1 1 4 FTK FTX50 60H ...
Страница 209: ...Remote Controller Si18 201 196 Operations 1 1 5 FTKD FTXD50 60 71J ...
Страница 213: ...Remote Controller Si18 201 200 Operations 1 1 9 FHYC35 50 60 71K Optional Accessory BRC7C612WC ...
Страница 214: ...Si18 201 Remote Controller Operations 201 ...
Страница 216: ...Si18 201 Remote Controller Operations 203 ...
Страница 217: ...Remote Controller Si18 201 204 Operations ...
Страница 234: ...Si18 201 Method of Field Set Operating Test 221 2 3 Interface Adaptor for Room Airconditioner KRP928A1S ...
Страница 237: ...Method of Field Set Si18 201 224 Operating Test ...
Страница 262: ...Si18 201 Troubleshooting SkyAir Indoor Unit Service Diagnosis 249 ...
Страница 393: ...Wiring Diagrams Si18 201 380 Appendix FHYC35 50 60 71KVE9 3D005668C ...
Страница 394: ...Si18 201 Wiring Diagrams Appendix 381 FHYC35 50 60 71KV1C9 ...
Страница 395: ...Wiring Diagrams Si18 201 382 Appendix FDYM60 03FAV1 FDYM60 03FAVAL C 3D019816D OPTION ...
Страница 396: ...Si18 201 Wiring Diagrams Appendix 383 FDYM60 03FAV1C ...