The hot air supply is regulated by a four-stage heating fan. The fan speed at each stage is controlled by ballast resistors. The resistors are attached to the heater casing through the connecting plate. In the event of a malfunction, the plate is replaced as a complete set. The heater casing and the fan are located in the passenger compartment under the dashboard.
Special version with air conditioning
With the help of air conditioning, the temperature in the passenger compartment can be lowered. At the same time, the humidity in the passenger compartment is reduced. The air conditioning compressor is driven by the engine via a V-belt. Repair of the air conditioner must be carried out in a specialized workshop. The compressor drive V-belt must be checked during routine maintenance. See section «Maintenance».