I have a bosch condensor tumble dryer it is only blowing cold air, I have cleaned out the grill thing at the bottom, I dont have a clue what to do next.
Please can you help me, I cannot live without it.
Call a repair technician. Bosch appliances are difficult to get into, and even more difficult to put back together. It's meant to be serviced by Bosch specialized technicians. Sorry for the bad news.