Hotpoint Aquarius TCM570 - no heat?

Hotpoint Aquarius TCM570 This unit is just over 12mths old!!! The heat function has ceased to work, it still spins etc but there is no heat. I've read on a previous posting relating to the same tumble dryer that the dryer is protected with a thermal cut out and I think I've located the thermal fuse and the auto reset. The expert advises to use a multimeter to check that the thermal cut out has gone open circuit. I've bought a multimeter and there seems to be power going to them but to be honest I don't really know what I'm doing, I would be really grateful if someone could provide some step by step instructions that befit someone of my extremely limited capabilities