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30
4. Start--up failure (LC) (AP1 below means control board of the outdoor unit.
Main detection points:
S
Is the compressor wiring correct?
S
Is the compressor stop time sufficient?
S
Is the compressor damaged?
S
Is the unit overcharged?
Does the unit turn on
within 3min?
Is the charge in the system correct and
have you opened both liquid and
suction valves? Does the unit start?
Is the compressor
wired correctly?
Check the connection
of outdoor mainboard AP1 and
compressor, and then
connect it according to wiring
diagram
Is the unit over charged?
Does the unit
start up normally?
Charge the refrigerant
according to unit
nameplate
Does the unit
start up normally?
Replace outdoor
mainboard AP1
Is the malfunction
eliminated?
Replace the
compressor
End
Turn on the unit
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Fig. 33 – Troubleshooting
Summary of Contents for 538FEQ009RBGA
Page 6: ...6 DIMENSIONS OUTDOOR Fig 3 Dimensions Fig 4 Dimensions Fig 5 Dimensions Fig 6 Dimensions...
Page 10: ...10 Outdoor Unit Fig 11 Sizes 09 12...
Page 47: ...47 Shut off power hold both ends of horizontal...
Page 48: ...48...
Page 49: ...49...
Page 50: ...50 ziptie side cutters...
Page 51: ...51...
Page 52: ...52...
Page 53: ...53...
Page 54: ...54...
Page 67: ...67 6 7 8...
Page 68: ...68 9 Remove electric box 10 Remove evaporator...
Page 69: ...69...
Page 70: ...70 11 Remove swing blade...
Page 71: ...71 12 Remove cross flow blade and motor...
Page 72: ...72 13 Remove drive box...
Page 84: ...84 APPENDIX Appendix 1 Reference Sheet of Celsius and Fahrenheit...
Page 89: ...89 UNIT BREAKDOWNS a b c d e...
Page 90: ...90 f g h...
Page 91: ...91...
Page 92: ...92...
Page 93: ...93...