Webasto BlueHeat Installation instructions manual - - J
3
B
ASIC
T
ROUBLESHOOTING
B
LUE
H
EAT
- J
EEP
G
RAND
C
HEROKEE
3-2
CAUTION
Diagnostics equipment is intended for use by Webasto trained personnel at authorized Webasto Distributor, Dealer and
End User service facilities.
A PC Diagnostic Interface kit for the BlueHeat is available that allows for more thorough testing and troubleshooting of
the heater and its components beyond the scope of this installation manual. The diagnostic kit makes it possible to read
and remove (reset) stored malfunction codes from the BlueHeat memory.
The PC Diagnostic Interface Kit comes complete with connecting hardware, software and instructions for use with any
IBM/PC compatible computer. Also available are several interface connectors for use with Webasto heaters equipped with
internal diagnostic capabilities such as the BlueHeat.
In addition to working with stored malfunction codes, the PC Diagnostics Interface Kit allows you to perform several
other functions such as reading values while the heater is in operation or testing individual components. Printing out
malfunction codes is also available (User supplied printer required).
For further capabilities and instructions for use with the BlueHeat heater, see the instruction manual supplied with the PC
Diagnostics Interface Kit.
Order PC Diagnostics Interface Kit under part number 92542F. Kit does not include required adapter for the BlueHeat
and must be included in your order. Order adapter under part number 92566A.
3.4
PC Diagnostics Interface Kit
3.3
General Malfunction Symptoms
The following table lists possible malfunction symptoms.
Malfunction Symptom
Coolant heater
switches off
automatically
(Fault lockout)
Heater expels black
fumes from exhaust
Probable Cause
No combustion after start
or automatic repeat start
Flame extinguishes during
operation
Heater overheats
Vehicle electrical system
voltage too low
Combustion air and/or
exhaust ducting blocked
Remedy
Switch off heater momentarily and switch on once again
Switch off heater momentarily and switch on once again
Check coolant lines for obstructions, closed valves and kinks.
Check coolant level. Allow heater to cool down, reset overheat
limiter, switch off heater momentarily and switch on once again
Charge battery
Switch off heater momentarily and switch on once again
Check combustion and exhaust ducting for obstructions
Table 3-1:
General Malfunction Symptoms