Dryer not working...it's one of those kind with the washer on the bottom and dryer on top.?

When I turn the knob, it just simply won't go....there is a sound like it wants to start and you can even hear the whine when you try and get it to dry. What could be wrong with it? Can it be fixed and for how much? We've had it for five years.Dryer not working...it's one of those kind with the washer on the bottom and dryer on top.?
It sounds like the start capacitor has gone bad. In single phase motors (like the one that spins a dryer drum) it uses a capacitor to start up. If the capacitor has gone bad the motor will ';whine'; and seem like it wants to go but it won't. Provided this is the problem it's easy and not too expensive to fix. Find a friend that's an electrician and have them get you a new start (or run) capacitor. This should cost around $50-100 to fix.Dryer not working...it's one of those kind with the washer on the bottom and dryer on top.?
I'm sure it can be fixed, you say it's 5 years old. It may cost $175-250 to repair. Would you want to put that much money in a 5 year old machine.
rule of thumb....washer or dryer older than 4 yrs will cost more to repaire than its worth..........