I forgot to mention before you call an engineer see if there is a red button on the back if so push it and it should heat up, if this is the case you have tripped the internal overload by not cleaning the filter or blocking/ squashing the vent pipe.
powerhousesteve@hotmail.com
November 2005
If this is a full load tumble dryer [same size as a washing machine] you should not attempt it as it is a pain, call an engineer.
Powerhouse Steve.
November 2005
I can answer this question...
How do I replace element for White Knight Tumble Dryer Cl441W?