Code 31 : No Charging - Siemens MULTIMOBIL 10 Troubleshooting Manual

4.6.11 Code 31 : No charging

Siemens Ltd. Med Division India
Start
Check fuseF1 on
D950A is blown?
No
Check for 230v
across x3.2 and
x3.6 on D950A?
Yes
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.
Yes
A
Version 4.0
Service Manual
Service Instructions
Replace
Yes
fuse
1.Check for the
continuity of the wires.
If found faulty. Replace
with OK wires.
No
2.If found OK. Confirm
if CS operates. If not
Replace CS contactor
NO
NO
Replace D950A
NO
S
S
Page 46 of 48