Webasto Dual Top Evo 6 Workshop Manual

4 Troubleshooting Dual Top Evo 6 / 7 / 8
401
4 Troubleshooting
4.1 General information
Many faults are caused by improper installation. Installation
errors should always be corrected or a fault of the system
would occur. See Table 401 "Faults due to improper
installation".
4.2 Fault code output
IMPORTANT
Troubleshooting is generally limited to the localisation of the
defective components.
The following fault causes are not taken into account and
should always be checked or a fault should be excluded for
the following reasons:
• Corrosion on connector
• Loose connection on connector
• Crimping error on connector
• Corrosion on lines and fuses
• Corrosion on battery terminals
If individual components are checked, then the electrical
connections on the control unit must be disconnected.
Carry out a functional check in the vehicle each time a fault
is eliminated.
Table 401 Faults due to improper installation
Cause Result
Heater lifted by heating air blow-
er
Heater warped, noise
Heater installed without vibration
damper
Noise
Water lines connected with incor-
rect hose connectors
Leakage
Unfavourable position of cold air
inlet chosen
Noise, overheating, low
efficiency
Heater installed unprotected Blockage in cooling air
blower
Hot air hoses fastened with
clamps without screws
Hot air hoses pulled off
Not insulated outside installed
hot air ducts
Heat loss and low effi-
ciency
Electrical cables damaged Malfunction
Unfavourable position of external
room temperature sensor chosen
Poor temperature con-
trol
Screws contact heating air blow-
er
Malfunction
Fuel pump touches vehicle part Noise
The exhaust line is not directed
downward away from the heater
everywhere and no condensate
drain hole is provided at the low-
est point
Malfunction due to
condensed water
Too many hot air outlets (> 9) Overheating, low effi-
ciency
NOTE:
This chapter describes the fault codes given out by
the manual and programmable control panels.
Replacement of parts, dismantling and assembly
(e.g. for inspection and cleaning) is described in
chapter 8: "Repair".

Webasto Dual Top Evo 6 Specifications

General

Brand	Webasto
Model	Dual Top Evo 6
Category	Heater
Language	English