Samsung AM080*XV Series, Service Manual, Page: 196 / 277

T roub l eshooting
4- 76 Sa m sung El ectronics
4-3-50 Fan Motor Overcurrent error
Outdoor unit disp l a y
( FAN P CB ( FAN 1))
( FAN P CB ( FAN2 ))
J udg m ent Method
∙ Occurs w hen o v ercurrent f l o w s in the I P M.
∙ Detected b y H/W or S /W
Cause of prob l e m
∙ Defecti v e FAN P CB
∙ Connector error
∙ Defecti v e Motor
1 .
Cause of prob l e m
R ep l ace Fan P CB
Y es
R ep l ace Outdoor Fan Motor
No
Y es
Is the resistance v a l ue
bet w een different phases of Fan Motor
( U ࣖ V , V ࣖ W, W ࣖ U ) l ess than 1 0 Ω?
R ep l ace Outdoor Fan Motor
R econnect w ires (H ousing – Connector )
No
No
Y es
Y es
Is the resistance bet w een the bod y of
Fan Motor and chassis M Ω?
Is the Fan Motor w ire proper ly
connected to FAN P CB ?
P o w er Off
Fan P CB w ire connection
FAN Motor Connector
Hall-sensor Connector
[FAN PCB]
Hall-sensor Connector