Webasto Thermo Pro 90, Установка оборудования

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Thermo Pro 90
5 Malfunctions and troubleshooting
503
5.5 Fault code table (fault codes, flash codes)
*: Indicator lamp of control element flashing: Number of long flash pulses after 5 short flash pulses
Fault
code
(ana-
logue)
Fault
code
(hexa-
decimal)
Error message Possible causes Recommended action in workshop
F00
or
0*
F01
F81
F91
F92
F2C
FA3
F07
FAC
No error Fuses Check fuses F1, F2 and F3
Electrical wiring • Check battery connections:
+ at 12 / - at 9 / + at 3 (switch-on signal),
connector X8
• Check control element
• Check contacts of W-bus cable (yellow cable)
Heater lock-out Delete heater lock-out
Control unit defective Replace control unit
F01
or
1*
F02
F82
F4E
F32 No start Fuel system Check fuel level
Check fuel filter
Checking tank extracting device and fuel line for
leaks
Bleed fuel system
Combustion air / exhaust
line Check combustion air/exhaust line for foreign
objects and clean if necessary
Burner unit • Clean burner unit or replace if necessary
• Check glow plug
F02
or
2*
F03
F83 Flame abort Fuel system Check fuel level
Check fuel filter
Checking tank extracting device and fuel line for
leaks
Bleed fuel system
Burner unit Clean burner unit or replace if necessary
F03
or
3*
F04
F84 Supply voltage too high Power supply Check battery
Check electrical connections
F04
or
4*
F05 Flame was detected
prior to combustion Exhaust gas temperature
sensor defective • Check operation of exhaust gas temperature
sensor, replacing if necessary
• Check prepressure in fuel system to fuel pump
• Check delivery rate of fuel pump
F06
or
6*
F14
F94 Temperature sensor
short circuit Wiring • Check wiring for damage
• Check resistance
Coolant temperature sen-
sor defective Check operation of coolant temperature sensor,
replacing if necessary
F07
or
7*
F08
F88
Fuel pump short circuit Wiring Check wiring for damage, break and short-circuit
DP42 fuel pump defective Check operation of fuel pump, replacing if
necessary
F08
or
8*
F09
F89
F2D
Combustion air fan
short circuit Wiring Check wiring for damage, break and short-circuit
Combustion air fan blocked Check operation of combustion air fan, replacing
if necessary
Combustion air fan defec-
tive Replace combustion air fan