Webasto thermo top evo Workshop Manual

5 Troubleshooting Thermo Top Evo
508
38 56 Initial starting attempt failed No additional information
available
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)
39 57 Initial starting attempt failed
– not restarting
No additional information
available
In case of frequent occurrence
(> 3):
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)
3F 63 Wrong version dataset
loaded
No additional information
available
Delete fault, fault release/carry
out heater lock-out on heater
(see Section 5.1.1), restart
heater
4C 76 Overvoltage component
protection
Switching off at extremely
high overvoltage for compo-
nent protection
Conduct check of vehicle elec-
trical-system supply voltage
(also see Section 5.7, Fig. 504,
Point 1)
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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Webasto thermo top evo Specifications

General

Brand	Webasto
Model	thermo top evo
Category	Water Heater
Language	English