1. Air intake
2. Air blower
3. Outlet fluid pipe
4. Incandescent pin / flame sensor
5. Evaporative pad
6. Sealed connector
7. Control unit with temperature sensors
8. Heat exchanger
9. Combustion chamber
10. Exit exhaust
11. Fuel pipe
12. The circulation pump
13. Intake fluid pipe
14. Fuel metering pump
To unlock, proceed as follows.
1. Turn on the heater with a regular control. 1. Turn on the heater with a regular control.
2. Disconnect the power cable, for example by removing the appropriate
3. Disconnect the control wire.
4. Pause for about 30 seconds.
5. Connect the power wire.
6. Connect the control wire.
In case of repeated blocking of the heater, the equipment is subject to
Service staff trained by Webasto-Spheros.
A- The heater is turned on - the indicator lamp shows error code 12.
B- Remove the fuse at 25A with the heater turned on.
B- Turn off the heater.
G- Insert the 25A fuse into place.
D- Turn on the heater- lock is removed.
Webasto liquid pre-heaters (liquid autonomous heaters) of the Thermo 50 series work independently of the car engine and, in combination with a standard car heating system (with liquid cooling) or as part of a separate
heating systems, are used for:
to cover the heat deficit of the car engine during its operation.
Liquid heaters are connected to the cooling system (cooling circuit),
fuel system and vehicle electrical system.
Suitable fuels are those prescribed by the vehicle manufacturer.
These heaters when switching from summer to winter diesel fuel must be run on
15 min to fill pipelines and fuel pump with new fuel. Additives to fuel do not have a harmful effect on the operation of the heater.