GHD Straighteners are usually reliable, but from time to time they do fail. The most common problem is wear to the power lead where it connects to the base of the straightener. This causes the straighteners to work intermitantly and the fault will get worse over time. Fortunately it is possible to get cheap ghd spares to repair your straighteners. In addition to spare ghd power leads you can get spare ghd ceramic plates and other components. Just make sure the person who carries out the repair is qualified to avoid an nasty shocks!