Electrolux TK K2 E - Manual (Page 24)

Lime in the water or cleaning agents may form a barely visible lining on the
inside of the drum. The degree to which the laundry has been dried is then
no longer detected reliably. The laundry is damper than expected when re-
moved from the dryer.
Use a standard domestic cleaner (e.g. vinegar-based cleaner) to wipe down
the inside of the drum and drum ribs.
Clean operating screen and housing
Do not use furniture cleaners or aggressive cleaning agents to clean the
machine.
Use a damp cloth to wipe down the operating screen and housing.
24 electrolux care and cleaning