Siemens MULTIMOBIL 10 - Code 31: no Charging

Service Manual
Service Instructions
Siemens Ltd. Med Division India Version 4.0
Page 46 of 48
4.6.11 Code 31 : No charging
Start
Check fuseF1 on
D950A is blown?
Yes
Replace
fuse
S
No
Check for 230v
across x3.2 and
x3.6 on D950A?
1.Check for the
continuity of the wires.
If found faulty. Replace
with OK wires.
2.If found OK. Confirm
if CS operates. If not
Replace CS contactor
Yes
No
S
Check V24 on
D950A glows?
Yes
Check Vc test point on
D950A? Should be 3.3 Vdc.
Yes
Check Fr1 test point on
D950A? Should be 25 KHz
frequency.
Replace D950A
NO
NO
Yes
NO
A