bosch tumble dryer shows 'E06'. Any ideas what this is referring to?

From a similar dryer:

Iron-dry and Low heat (F:06 on the display)
Fluff strainer, air cooler, air circuit blocked (Overheating)
Overloaded
Clean air circuits.
Advise customer. Check heating function and, if required, replace parts.
Advise customer. (max. 6 kg)

from this discussion:

https://www.justanswer.com/uk-appliance/8l52v-bosch-classixx-vented-tumble-drier-keeps-stopping.html

That model's service manual here:

http://www.mediafire.com/view/1lvo40tniz6s6mt/WTV74104UK_Service_Manual.pdf

Basically it looks like you need to check the COMPLETE drying air path for fluff, blockages, small children, salad, etc.

Acp
August 2017