Maintenance and Service
Air conditioning and ventilation system
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7.14 Air conditioning and ventilation system
If the air conditioning system doesn't cool sufficiently, it may be down to the following
causes:
– Condenser air conditioning system is clogged.
Remedy: clean the air conditioning system condenser
– Coolant circuit is filled insufficiently.
Remedy: Only possible for specialist personnel with the required special tools.
– Recirculating air grid in the driver's cabin is not open.
Remedy: Open recirculating air grid.
– Recirculating air filter in the driver's cabin is clogged.
Remedy: Clean recirculating air filter.
If the heating and ventilation systems are not operating at full power, even when the
recirculating air grid is completely open, it can be usually caused by clogged filters.
Therefore, always clean both filters.
7.14.1 Condenser air conditioning system
2
(2) Condenser air conditioning system
– Check daily the condenser (2) of the air conditioning system on soiling.
– If required clean it with pressure air or spray stream from water hose.
– Never use a high-pressure cleaner.
– The condenser (2) with the ventilator cowl is lifted up for cleaning.
CAUTION
Hazard of damage to health and hazard of damage to the environment.
Maintenance work on the air conditioning system requiring opening of the coolant cir-
cuit (for instance refilling of coolant, exchange of the collector dryer, etc.) may only be
performed by an authorized specialist workshop.
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