I’ve been to looks at a Bosch condensing drier, it’s about 4 years old. The customer said, that the clothes wern’t coming out completely dry. It’s doing everything it should be doing. I’ve cleaned the condenser, and the small trap under the condensor, it’s heating, its pumping the water into the tank. I’ve run small a load on the programed setting and the items came out slightly damp. As a last resort, I replaced the heater, it’s still no completely drying the clothes.