Pauline
If dryer is not producing any heat and the clean filter light is always on, you need to buy a new heating element.
Only a few quid. Dead easy to fit.
Turn dryer round. Remove 8, 10 or so screws from rear metal cover. You'll see the heater. Remove 2 screws, and gently pull the 4 wires (red, yellow, white, black) from out the hole into the machine. Disconect wires. Connect new heater wires (match colours up). And re-fit screws and back panel.
Job done. Very easy
Derek Hatfield (hoover candy service engineer)
Derek Hatfield, March 2010