41
8. PFC (correction for power factor) malfunction (outdoor unit malfunction) (AP1 below is control board of the outdoor unit).
Main detection point:
S
Check if reactor (L) of outdoor unit and PFC capacity are damaged.
Malfunction diagnosis process:
Start
If the resistance
value is 0
Remove PFC capacity
and test resistance of
two terminals
Capacity is
short
circuit and
replace it
Y
Re-energize
the unit and
start it
Cut the terminal of reactor,
test the resistance
between two terminals of
reactor with ohmic meter
Replace the
reactor
Re-
energize
the unit and
start it
Check the
connection wire
of reactor (L) of
outdoor unit and
PFC capacity
Is there damage or a
short circuit?
Replace
connection
wire with circuit
diagram
Replace
control board
AP1
Yes
Yes
No
No
Y
No
N
N
No
No
No
If there is damaged
short circuit
Does the unit
normally?
Does the unit
operate?
Y
Y
Y
End
Yes
Yes
Yes
Yes
operate
normally?
Does the unit
operate?
normally?
Fig. 44 – Troubleshooting
Содержание 38GRQB09-3
Страница 10: ...10 Outdoor unit Fig 11 Sizes 09 12...
Страница 46: ...46 EXPLODED VIEW AND PARTS LIST Indoor Unit Fig 47 Indoor Unit...
Страница 48: ...48 OUTDOOR UNIT Fig 48 Outdoor Unit...
Страница 50: ...50 Fig 49...
Страница 53: ...53 Shut off power hold both ends of horizontal...
Страница 54: ...54...
Страница 55: ...55...
Страница 56: ...56 ziptie side cutters...
Страница 57: ...57...
Страница 58: ...58...
Страница 59: ...59...
Страница 60: ...60...
Страница 73: ...73 6 7 8...
Страница 74: ...74 9 Remove electric box 10 Remove evaporator...
Страница 75: ...75...
Страница 76: ...76 11 Remove swing blade...
Страница 77: ...77 12 Remove cross flow blade and motor...
Страница 78: ...78 13 Remove drive box...
Страница 90: ...90 APPENDIX Appendix 1 Reference Sheet of Celsius and Fahrenheit...
Страница 95: ...95 UNIT BREAKDOWNS a b c d e...
Страница 96: ...96 f g h...
Страница 97: ...97...
Страница 98: ...98...
Страница 99: ...99...