Bosch 370er corded lawnmower has stopped working (at least 5 years old), no sound when we try to start up. Have cleaned the vents and around the blade, checked fuse, plug and switch wiring etc to no effect. Tried to remove motor casing but it seems wedged under other parts. Any other ideas before we give up on it? Also any suggestions to replace it please, garden is long and ground uneven.