Samsung AG042KSVANH, Service Manual

Page: 81 / 142

77
4-3-35. Inverter Overcurrent error
1. Insp
ec tion M e tho d
Inv e rt e r / Hy d ro c ontrol p a rt d ispl a y
(INVERTER1 PCB)
(INVERTER 2 PCB)
Ju dg m e nt M e tho d
∙ Will o cc ur i f th e ov e r c urr e nt f lowin g in th e IPM.
∙ D e t ec t ed b y H/W or S /W
C a us e o f pro b l e m
∙ Inst a ll a tion defec tiv e
∙ Comp. defec tiv e
∙ PCB defec tiv e
∙ Conn ec tion wir e e rror
∙ Motor defec tiv e
Pow e r O ff
Continu e
Y e s
Is th e out d oor unit inst a ll ed prop e rly?
R e mov e th e o b st ac l e s a n d c h ec k
th e st a tus o f th e inst a ll a tion.
No
Y e s
Is t e mp e r a tur e
s e nsor lo ca tion a n d th e m ea sur e m e nt
v a lu e norm a lly?
Pow e r O ff , a n d th e n r e pl ace m e nt
or c orr ec tion o f th e s e nsor lo ca tion
No
Y e s
Is th e r e sist a n ce v a lu e
be tw ee n ph a s e o f Compr e ssor wir e
(U-V, V-W, W-U) l e ss th a n 2 Ω?
R e pl ace Compr e ssor
No
Y e s
Is th e r e sist a n ce be tw ee n
th e b o d y o f Compr e ssor a n d
c h a ssis MΩ?
R e pl ace Compr e ssor
No
Y e s
Do e s th e Compr e ssor
c onn ec tion wir e prop e rly c onn ec t
to th e c ompr e ssor?
Ch ec k th e c onn ec tion wir e
(Ch ec k th e st a tus o f th e c onn ec tion UVW)
No