Si-71A
Procedure of Self-Diagnosis by LED
Troubleshooting
97
5.
Procedure of Self-Diagnosis by LED
5.1
Troubleshooting by LED on The Indoor Unit’s
Foreword
Troubleshooting can be carried out by service monitor LED (green). (Blinks when normal)
ò
: LED on
ó
: LED off
ñ
: 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.
5.2
Troubleshooting by LED on The Outdoor Unit’s PC Board
With the power supply turned “ON,” the troubleshooting listed below by the outdoor unit’s maintenance
monitor LED.
ò
: LED on
ó
: LED off
ñ
: LED blinks — : No connection with troubleshooting
Green LED : Normal when ON, No LED: Normal when OFF
Note:
1. Check troubleshoot by turning off the power supply for a minimum of 5 seconds, turning it back on, and
then rechecking the LED display.
2. Turn off the power supply for a minimum of 5 seconds, and when turning it back on after disconnecting
transmission wiring No. 2, if the outdoor unit’s LED-A blinks, the indoor unit’s PC board is defective.
3. Previous malfunction data is displayed on the malfunction detection monitor. After inspecting, turn off
the power supply once.
4. Switch 2 of the 3 power supply cables and recheck.
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)
ñ
ñ
Normal
→
Outdoor unit
ñ
ò
Failure of indoor unit PC board ass’y
ó
If outdoor unit’s LED-A blinks, failure of indoor unit PC board
ass’y (Note 1)
ò
—
Failure of indoor unit PC board ass’y (Note 2)
ó
Malfunction of power supply or failure of PC board ass’y
(Note 2)
Microcomputer
Normal Monitor
LED-A (Green)
Malfunction Detection
Monitor (Note 3)
Contents/Processing
LED1
(red)
LED2
(red)
ñ
ó
ó
Normal
→
to outdoor unit
ñ
ò
ó
Actuation of safety device
ó
ò
Main power supply reverse phase connection of lack of phase
(Notes 4)
ò
ò
Malfunction of sensor system
ò
—
—
Failure of outdoor unit PC board (Notes 1)
ó
—
—
Malfunction of power supply or failure of outdoor unit PC board
(Note 1, 2)
Summary of Contents for Skyair FHC35K
Page 7: ...Si 71A vi Table of Contents...
Page 19: ...Present Model s Functions Si 71A 8 Improved Points and Functions...
Page 22: ...Si 71A Wired Remote Controller Remote Controller Operation 11...
Page 24: ...Si 71A Wireless Remote Controller Remote Controller Operation 13...
Page 26: ...Si 71A Wireless Remote Controller Remote Controller Operation 15...
Page 27: ...Wireless Remote Controller Si 71A 16 Remote Controller Operation...
Page 42: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 31 FHYC35 FHYC125KVE V1C...
Page 43: ...Settings Concerning Maintenance Si 71A 32 Explanation of Field Set FHB35 FHB60FJV1 FV1...
Page 44: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 33 FHYB35 FHYB71F...
Page 45: ...Settings Concerning Maintenance Si 71A 34 Explanation of Field Set FHK35 FHK60FJV1 FV1...
Page 46: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 35 FHYK35 FHYK71FJV1 FV1...
Page 47: ...Settings Concerning Maintenance Si 71A 36 Explanation of Field Set FAY71 FAY100FVE...
Page 48: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 37 FAY71 FAY100FAVE...
Page 49: ...Settings Concerning Maintenance Si 71A 38 Explanation of Field Set FVY L...
Page 50: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 39 FUY71 FUY125FJ...
Page 52: ...Si 71A Settings Concerning Maintenance Explanation of Field Set 41 RY140K...
Page 106: ...Si 71A Procedure of Self Diagnosis by Remote Controller Troubleshooting 95...
Page 135: ...Troubleshooting by Remote Controller Display LED Display Si 71A 124 Troubleshooting...
Page 201: ...For R Y 71K Si 71A 190 Removal Procedure...
Page 206: ...Si 71A Piping Diagrams Appendix 195 R140KY1 Twin System R140KTAL Twin System 3D000191 3D000222...
Page 214: ...Si 71A Wiring Diagram Appendix 203 2 Wiring Diagram 2 1 Indoor Unit FHC35KVE FHC50KVE FHC60KVE...
Page 215: ...Wiring Diagram Si 71A 204 Appendix FHK35FV1 FHK71FV1 DU427 5405...
Page 216: ...Si 71A Wiring Diagram Appendix 205 FHB35FV1 FHB60FV1 DU423 5175A...
Page 217: ...Wiring Diagram Si 71A 206 Appendix FH35FVE FH125FVE DU423 5172B...
Page 219: ...Wiring Diagram Si 71A 208 Appendix FHYK35FJV1 FHYK70FJV1 DU423 5174...
Page 220: ...Si 71A Wiring Diagram Appendix 209 FHYB35FV1 FHYB71FV1 DU423 5173A...
Page 221: ...Wiring Diagram Si 71A 210 Appendix FHYB100FV1 FHYB125FV1 DU428 5353A...
Page 222: ...Si 71A Wiring Diagram Appendix 211 FHY35FVE FHY125FVE DU423 5172B...
Page 223: ...Wiring Diagram Si 71A 212 Appendix FAY71F A VE FAY100F A VE DU427 5410D...
Page 224: ...Si 71A Wiring Diagram Appendix 213 FVY71FV1 FVY125FV1 DU427 5403...
Page 225: ...Wiring Diagram Si 71A 214 Appendix FUY71FJV1 FUY100FJV1 FUY125FJV1 3D013404A...
Page 226: ...Si 71A Wiring Diagram Appendix 215 FVY71LVE FVY100LVE FVY125LVE 3D013540A...
Page 227: ...Wiring Diagram Si 71A 216 Appendix 2 2 Outdoor Units 50Hz R35GV1 R50GV1 DW523 555 1A...
Page 228: ...Si 71A Wiring Diagram Appendix 217 R60GV1 R71KV1 DU427 5399C...
Page 229: ...Wiring Diagram Si 71A 218 Appendix R100KV1 R71KY1 DU428 5349E DU427 5401B...
Page 230: ...Si 71A Wiring Diagram Appendix 219 R100KY1 R125KY1 R140KY1 DU428 5351D...
Page 231: ...Wiring Diagram Si 71A 220 Appendix 2 3 Outdoor Units 60Hz R50GVAL R60GVAL 3D005750...
Page 232: ...Si 71A Wiring Diagram Appendix 221 R71KVAL R100KVAL 3D014723A 3D014724A...
Page 235: ...Wiring Diagram Si 71A 224 Appendix RY60GV1A RY71KV1...
Page 236: ...Si 71A Wiring Diagram Appendix 225 RY71KY1 RY100KY1 RY125KY1 DU427 5397B DU428 5347D...
Page 237: ...Wiring Diagram Si 71A 226 Appendix RY140KY1 RY140KTAL 3D000102A 3D000104A...
Page 241: ...Si 71A iv Index...