I have a Kenmore dryer (70 series) in my newly purchased home. I'm guessing it's about seven years old since that's when the townhouse was built. The dryer operates fine but there is no heat. I have pulled the unit out from the wall and straightened the exhaust hose and checked it for lint build-up. Still no heat. Any suggestions? Thanks.

What kind of dryer GAS/ELECTIC?
Gas check the igniter it is probably bad.
Electric check the heating element.
If you are not sure of your skills call someone.
If you would like a walk through on either (gas is easiest-my opinion) let us know and someone will help you.
Todd