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6BASIC TROUBLESHOOTING WEBASTO THERMO 300
6-4
6.4 Reading and Removing Malfunction Codes Stored in Memory with the Webasto
PC Diagnostics Kit and Adapter
It is possible to read and remove (reset) stored malfunction codes from the Thermo 300 memory. This is achieved
through the use of a diagnostic interface kit connected to the Thermo 300 and an IBM compatible computer having
the necessary software installed.
The PC Diagnostic Interface Kit comes with software and instructions for use with Webasto heaters equipped with
internal diagnostics capabilities such as the Thermo 300.
Order PC Diagnostics Kit under part number 92542E and adapter under part number 20865A.
System requirements:
• IBM compatible PC with 80286 processor or higher
• DOS version 3.0 or higher including *MS Windows (*Not required)
• Requires a minimum of 1 MB RAM
• Requires a hard disk with at least 3 MB space available
• 3 1/2 inch, 1.44 MB floppy disk drive for installation of program files
• VGA graphics board with 640 x 480 pixel resolution and at least 16 colors
• One unused serial port
• One monitor and keyboard (mouse or other pointing device recommended)
In addition to working with stored malfunction codes, the PC Diagnostics Kit allows you to perform several other
functions such as reading values while the heater is in operation or testing individual components. Printing out of
malfunction codes is also available (User supplied printer required).
For further capabilities and detailed instructions for use with the Thermo 300 heater, see instruction manual supplied
with the PC Diagnostics Kit.
CAUTION
Diagnostics equipment is intended for use by Webasto trained personnel at authorized Webasto distributor, dealer
and end user service facilities. Troubleshooting requires profound knowledge about structure and theory of operation
of the heater and components.
Troubleshooting and fault correction should only be performed by Webasto trained, skilled personnel unless
otherwise stated in this manual.