Insufficient air flow caused by the accumulation of dirt on the condenser or radiator (probably only after about 25 – 30,000 km).
Cleaning of the radiator and condenser.
The pressure switch and the temperature switch are not engaged at the relevant pressure and temperature values.
Control of the contact points on the pressure switch and thermostat. If necessary, replace the defective component (refer also to “Technical documentation for AC systems in vehicles”).
The switch for the radiator fan is not working.
Power supply directly to the electric fan. If the fan does not work, replace it.
Fault in the functioning of the electric fan. (Wrong direction of rotation).
The electric fan should operate in such a manner that it sends air into the engine compartment.
Overheating of the cooling water.
Check the vehicle’s own cooling system.
Improper condenser installation.
Check if the distance between the radiator and the condenser is about 15 – 20 mm and that the air hose, where relevant (see the assembly instructions), is correctly positioned (see also “Technical documentation for AC systems in vehicles”).