Ablerex 3 MS series - 5.7. Quick Troubleshooting Flowchart

30
AC fuse is burnt
PFC fault
1. Replace Q1, U3
2. check BD1, D11
and R42
YES
Q6,Q7
short
INVERTER
fault
1.replace Q6, Q7,
U6, U7
2.Check R83 R104,
D12 and D13
NO
NO
DC fuse is burnt
UPS MALFUNCTION
Q10, Q12, Q15,
Q17, Q19, Q21 short
or low resistance
Booster fault.
3. Replace Q10, Q12,
Q15, Q17, Q19,
Q21, R111, R123,
R134, R143, 148,
R154, U9 and/or F1.
4. CHECK D31-D34
and T2.
YES
if the UPS still fails to work. Please refer to
the
detail trouble shooting guide
NO
YES
Q1 short
5.7 Quick troubl
e shooting