Chris. How can you give that answer based on what info has been given? They haven't even said what make it is, is it a vented or condenser, gas or electric.
It could be a wiring fault, pcb fault etc How does the person know the drum is turning? Many dryers have solid doors, the person may hear the motor turning but the belt could have snapped etc, etc.
You know what they say, a little knowledge is dangerous.
Phill
November 2008
the problem is either thermostat or heater needs replacing however some thermostats has got a reset button located at rear press red button if you have reset button and try your dryer
chris
November 2008
Automatic Answer
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Try fixfault.com to fix tumble dryers.