26
5. Communication Malfunction E6
Start
Cut off power supply. Check if
connection line of IDU and ODU
and the wire inside electric box
are correctly connected.
Correct connection?
Main board matches
with display board? Main board of
IDU matches with that of ODU?
Communication wire is damaged?
Replace IDU's
main board
Malfunction eliminated?
End
Connect the line
according to
wiring diagram.
Match correctly
according to product
specification
Replace
communication
cord
Replace ODU's
main board.
Malfunction eliminated?
Malfunction eliminated?
Malfunction eliminated?
Yes
Yes
Yes
Yes
No
no
No
Yes
Yes
Yes
No
No
No
No
Fig. 29 – Troubleshooting
Summary of Contents for 38GRQB09-3
Page 10: ...10 Outdoor unit Fig 11 Sizes 09 12...
Page 46: ...46 EXPLODED VIEW AND PARTS LIST Indoor Unit Fig 47 Indoor Unit...
Page 48: ...48 OUTDOOR UNIT Fig 48 Outdoor Unit...
Page 50: ...50 Fig 49...
Page 53: ...53 Shut off power hold both ends of horizontal...
Page 54: ...54...
Page 55: ...55...
Page 56: ...56 ziptie side cutters...
Page 57: ...57...
Page 58: ...58...
Page 59: ...59...
Page 60: ...60...
Page 73: ...73 6 7 8...
Page 74: ...74 9 Remove electric box 10 Remove evaporator...
Page 75: ...75...
Page 76: ...76 11 Remove swing blade...
Page 77: ...77 12 Remove cross flow blade and motor...
Page 78: ...78 13 Remove drive box...
Page 90: ...90 APPENDIX Appendix 1 Reference Sheet of Celsius and Fahrenheit...
Page 95: ...95 UNIT BREAKDOWNS a b c d e...
Page 96: ...96 f g h...
Page 97: ...97...
Page 98: ...98...
Page 99: ...99...