Service diagnosis
44
Domestic air conditioner
Led1 light
NO
YES
Remove fan motor after
switch off the power and
restart
the a/c ,the led 1 becomes light
or flash.
Fan motor is
damaged
ˈ
replace it
with a new one.
YES
NO
YES
Test the fan motor terminal resistance
between pin 310V and 0V,or pin15V and 0V
of CN22 are close to 0m
¡
with a multimeter
DIWHUVZLWFKRIIWKHSRZHU
NO
Remove the connection cable
between CN23 of outdoor pcb and
CN10 of module pcb,The led1
becomes light or flash.
YES
YES
The module pcb is
damaged, replace it
with a new one.
The
outdoor pcb
is
damaged, replace it
with a new one.
NO
Measure the voltage
Between 3 and 4 of IC9 on the
Outdoor mainboard with a Multimete .
The voltage is a constant value of 0V
DC to 5V DC
The
outdoor pcb
is
damaged, replace
it with a new one.
YES
NO
The outdoor pcb is
well,and then check
the cable
If the voltage is a constant value
of 0V DC to 5V DC.Or the voltage
between Communication line(red ) and N(white
line) is not close to18V
DC when only indoor charged.
YES
The indoor mainboard is
damaged; replace it with a
new one.
NO
Test the outdoor power is
supply 230VAC with a
multimeter when indoor and
outdoor are charged.
LED2 light of the outdoor
NO
The module pcb
is damaged,
replace it with a
new one.
NO
YES
Check the cable
between outdoor
and power
(A)
Содержание 1U35YEFFRA-C
Страница 11: ...Pinping diagrams Domestic air conditioner 4ˊPiping diagrams 9 ...
Страница 12: ...Operation range 10 Domestic air conditioner 5 Operation range 10 0 21 27 35 20 40 60 43 20 40 ...
Страница 14: ...Functions and control 13 Domestic air conditioner Wiring diagrams OUTDOOR UNIT ...
Страница 37: ...Service diagnosis 37 Domestic air conditioner ...
Страница 56: ...57 Do C omestic air ircuit Diagra conditioner ams r ...
Страница 59: ...Removal Procedure 1 Removal of Outdoor panel RPHVWLF LU RQGLWLR ...
Страница 60: ...Removal Procedure 2 Domestic Air Condition ...
Страница 61: ...4 Removal Procedure 3 Domestic Air Condition ...
Страница 62: ...Removal Procedure 2 Removal of Electrical Box RPHVWLF LU RQGLWLR ...
Страница 63: ...Removal Procedure 3 Removal of Fan and Fan Motor RPHVWLF LU RQGLWLR ...
Страница 64: ...Removal Procedure 4 Removal of fan motor brcked and partition RPHVWLF LU RQGLWLR ...
Страница 65: ...Removal Procedure 7 Domestic Air Condition ...
Страница 66: ...Removal Procedure 5 Removal of compressor and heat exchanger RPHVWLF LU RQGLWLR ...
Страница 67: ...Removal Procedure 9 Domestic Air Condition ...