Samsung AM080*XV Series, Руководство по обслуживанию

Страница: 174 / 277

T roub l eshooting
4- 5 4 Sa m sung El ectronics
4-3-34 3-phase Input Wiring error
1 .
Cause of prob l e m
R ep l ace the MAIN P CB.
Connection and then restart it
P o w er BOX T er m ina l : Chec k the phase - to - phase
connection 3 8 0V of the R, S , T and then restart.
( N - phase m ust be proper ly connected. )
No
No
Y es
Y es
Did the R eactor
Connection T er m ina l is connected
proper ly?
Did the Main
T er m ina l B l oc k and P o w er R, S , T, N is
connected proper ly?
L o w v o l tage error during this initia l charge :
R ep l ace Fuse , if the rectifier diode of the
in v erter P CB is nor m a l .
No
No
Did the E MI P CB Fuse is short ?
Connection and then restart it
Y es
Y es
Is E MI P CB CN2 1
connector and In v erter P CB accurate ly
connected ?
P o w er Off
Outdoor unit
disp l a y
Indoorunit
disp l a y
Duct , Cassette (1/ 2 W a y), Conso l e , Ce l ing Cassette (4/ Mini 4 W a y) W a ll-m ounted ( NeoForte )
Operation Defrost T i m er Fan Fi l ter / M P I Operation Defrost T i m er Fi l ter Operation T i m er T urbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ●
: ON
◑
: F l ash ×: OFF
J udg m ent
Method
. W hen turn on the po w er and chec k the status of the po w er fro m the in v erter.
If the phase does not connect the po w er ( no phase ) : E4 25 or E4 66 (E 366 ) is disp l a y ed
( Air conditioner to m aintain the nor m a l state. )
H o w e v er ) N - phase m ust be proper ly connected.
Cause of
prob l e m
∙ Chec k the input w iring
∙ E MI Fuse short