Thermo S 160/230/300/350/400
5 Troubleshooting and error correction
501
5
Troubleshooting and error correction
5.1
General
This section describes troubleshooting and error
correction for Thermo S 160, S 230, S 300, S 350 and
S 400 heaters.
Troubleshooting and error correction may only be
performed by briefed personnel.
In case of doubt functional connections can be obtained in
chapters 3 and 4.
Error detection is usually limited to localizing the faulty
component.
The following malfunction causes are not taken into
account and should basically always be verified and/or a
malfunction due to these reasons should be excluded:
t
Corrosion on plugs
t
Loose plug connections
t
Crimp failures on plugs and/or pins
t
Corrosion on cable and fuses
t
Corrosion on battery terminals
t
Cable insulation damage
Prior to replacing a fuse troubleshooting needs to be
performed. The heater must be disconnected from the
vehicle electrical system and the fuse must switch into
currentless state.
A properly dimensioned fuse must be inserted (see
chapter 6 Schematic diagrams).
After each error correction a functional test must be
performed in the vehicle.
5.2
General error symptoms
The following table lists possible, general error symptoms.
Table 501: General error symptoms
e
s
u
a
c
e
l
b
i
s
s
o
P
m
o
t
p
m
y
s
r
o
r
r
E
Error in the electronics
Operating display is not illuminated and the heater does
not function.
t
No supply voltage.
t
Fuses.
t
Supply cable to the plug contacts of plug A of the
control unit.
e
h
t
n
i
r
o
p
m
u
p
g
n
i
t
a
l
u
c
r
i
c
e
h
t
n
i
t
i
u
c
r
i
c
t
r
o
h
S
.
d
e
r
e
g
g
i
r
t
2
F
e
s
u
F
supply cable to the heater.
r
e
n
r
u
b
/
r
e
t
a
e
h
e
h
t
o
t
e
l
b
a
c
y
l
p
p
u
s
e
h
t
n
i
t
i
u
c
r
i
c
t
r
o
h
S
.
d
e
r
e
g
g
i
r
t
3
F
e
s
u
F
motor/ nozzle block preheater (if installed).
Heater is functional, however the operating display
is not illuminated.
Operating display defective to cables to
the operating display interrupted or shorted.
CAUTION
Содержание Thermo S 160
Страница 2: ......
Страница 6: ...1 Introduction Thermo S 160 230 300 350 400 4...
Страница 11: ...S o m r e h T n o i t c u d o r t n I 1 160 230 300 350 400 105...
Страница 49: ...5 Troubleshooting and error correction Thermo S 160 230 300 350 400 520...
Страница 55: ...r e h T s m a r g a i d c i t a m e h c S 6 mo S 160 230 300 350 400 606...
Страница 71: ...9 Modifications and retrofits Thermo S 160 230 300 350 400 902...
Страница 73: ...10 Packing storage shipping Thermo S 160 230 300 350 400 1002 Empty page for notes...
Страница 74: ...x i d n e p p A A 0 0 4 0 5 3 0 0 3 0 3 2 0 6 1 S o m r e h T A 1 Appendix A Periodic maintenance...
