Ablerex 3 MS series - 6.7. Quick Troubleshooting Flowchart

38
AC fuse is burnt
PFC fault
1.Replace Q5, U4
2.check BD1,BD2,
D9 and R47
YES
Q29-Q32
short
INVERTER fault
1.replace Q
29-Q32, U8,
U9
2.Check R
159, R163,
R169, R172, D28-D31
NO
NO
DC fuse is burnt
UPS MALFUNCTION
Q12, Q13, Q14,
Q24, Q27, Q28
short
or low resistance
Booster fault.
1. Replace Q12, Q13,
Q14, Q24, Q27,
Q28, R101, R105,
R115, R142, R152,
R155, U7 and/or F1.
2. CHECK D32-D35
and T2.
YES
if the UPS still fails to work. Please refer to
the
detail trouble shooting guide
NO
YES
Q5 short
6
.7 Quick trouble shooting