Webasto MultiControl Installation Instructions

MultiControl | SmartControl | UniBox 12
7 Fault Remedy
7.1 Error code
If a fault occurs in the heater during heating, the
heater outputs an error code via the control ele-
ment.
Further information can be found in the instruction
manual of the heater.
Internal control element error table "Txx"
A fault is signalled as Txx or as Fxx on the display of
the control element together with the red flashing
LED. The fault display also appears after waking up
the control element from standby mode and must
be acknowledged by pressing the control knob or
the quick-start knob. This fault is stored in the error
codes in the menu (menu element "Error code") of
the control element and can be called up. With a
"Reset" via the customer menu, all error codes in
the control element and the UniBox are deleted.
Error code Fault Fault description Fault remedy
Ted Overvoltage Supply voltage is above 36V. Check vehicle electrical installation.
Te3 Display background lighting defective Contact Technical Support/Customer Service.
Te4 Status LED defective Contact Technical Support/Customer Service.
Te5 Temperature sensor fault
Temperature sensor of the MultiControl/SmartCon-
trol defective.
Contact Technical Support/Customer Service.
Te6 W bus temperature sensor fault
Temperature from the external sensor (W bus) can-
not be read correctly.
Check installation. Replace the sensor, if necessary.
T5d UniBox temperature sensor fault
Temperature from the external sensor connected to
the UniBox cannot be read correctly.
Check installation. Replace the sensor, if necessary.
T12 Communication fault on the W bus Check installation.
Te7/Te8 Flash
Reading/writing from/to the internal memory has
failed.
Contact Technical Support/Customer Service.
Tea Faulty feedback signal from the heater (ST) Check installation.
Tec Jamming control knob
A control knob is pressed for longer than 10
seconds.
Contact Technical Support/Customer Service.
T46 Overcurrent/short-circuit at switching output SAU1 Current is higher than 500mA.
Check installation. Ensure that the consumer at
switching output SAU1 does not draw a higher
current than 500mA.
T49 Overcurrent/short-circuit at switching output SAU2 Current is higher than 20mA.
Check installation. Ensure that this switching output
is only connected to the corresponding heater.
Te0 Reduced voltage
Supply voltage is below the value set by the techni-
cian.
Recharge the battery and check the vehicle's electri-
cal installation
T84 Low voltage Supply voltage is below 8V.
Recharge the battery and check the vehicle's electri-
cal installation
Te1 Ambient temperature too low/high
Ambient temperature is outside the working range
of -20°C to +70°C.
The fault disappears automatically when the ambi-
ent temperature returns to the working range of
-20°C to +70°C.
Teb RTC error
The internal clock chip of the MultiControl/Smart-
Control has lost its setting.
In the event of interruptions in the power supply
of more than 8 minutes: Enter the date and time
again.
If the error occurs without an interruption in the
power supply: Contact Technical Support/Customer
Service.
Tee
Defective switching transistor in the MultiControl/
SmartControl
Contact Technical Support/Customer Service.
Attention: If this fault occurs, the heater can no longer be switched off. Please remove the fuse immediately and drive to a workshop.

Webasto MultiControl Specifications

General

Brand	Webasto
Model	MultiControl
Category	Control Unit
Language	English