Thermo Top Evo 5 Troubleshooting
507
11 17 ECU wrong coded Incorrect parameter block or
wrong heater (diesel/gaso-
line) used
This fault can only occur on
vehicles with CAN bus or LIN
bus connection to heater:
1) Compare heater type label
with vehicle fuel type
2) Proceed according to vehi-
cle manufacturer's specifi-
cations
2F 47 Flame abort The flame has extinguished
during operation. Another
starting attempt will be car-
ried out.
In case of frequent occurrence
(> 10):
1) Troubleshooting in air
intake or in exhaust system
(see Section 5.7, Fig. 504,
Point 12)
2) Conduct troubleshooting
in fuel system (see
Section 5.7, Fig. 504,
Point 10)
3) Conduct check of meter-
ing pump (see Section 5.7,
Fig. 504, Point 5)
4) Conduct electrical test of
glow plug (see Section 5.7,
Fig. 504, Point 6)
37 55 Coolant temperature during
initial start-up too high
No additional information
available
This fault can only occur dur-
ing initial start-up of the
heater (at vehicle manufac-
turer's plant):
1) Allow coolant system to
cool down - attempt initial
start-up again
2) Conduct electrical test of
temperature sensors (see
Section 5.7, Fig. 504,
Point 7)
Fault
code
(HEX)
Fault
code
(DEZ)
WTT* fault message Fault details with double-
click in WTT*
Recommended workshop
action
Fig. 502 Overview of general faults entered in fault memory
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