My brand new samsung dryer will run a cycle, but not get hot. I've had the samsung people come out and look, they say the dryer is fine because it heats up great when it isn't connected to the hose in the back. I've had the vents cleaned through out the house. And it STILL won't heat up when its connected to the hose. Does fine when its disconnected. I don't even know who to call to help me fix this.