i have a hdv6uk also. it has exactly the same problem.
the machine runs fine with no heat.
remove the back panel and you will find 2 thermal cut out switches. on mine, 1 of these has broken.
if you are electrically minded you could short out ( replace the switch with a piece of wire) each switch in turn to see if it solves your problem. remember this switch is there for a reason so this procedure should only be used to identify the problem.
you can then replace the faulty switch.
i am still trying to find a replacement switch. i have been told i need to replace the full heater for a cost of approx £35.
if i have any joy i will leave a message for you.
ian
October 2007