Should the vehicles mentioned above experience a defect of the cabin fan, the possible cause might be frozen water inside the fan enclosure.
Under certain conditions, falling snow can enter the fan enclosure via the fresh air intake.
There, it may condensate and freeze during low outside temperature, thus blocking the fan motor. Vehicles with Climatronic will then display the following error codes:
To eliminate the problem, uninstall the fan motor and check. If no damage is evident, the motor can be reinstalled. Bore a hole with a 4 mm diameter at the deepest point of the fan enclosure. This ensures that the accumulated water will be drained.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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