400x1800mm Flat Chrome Pre-Filled Electric Towel Radiator

Smart 600Watt thermostatic element controls not working but producing maximum heat constantly

The electric towel radiator (1800x400 with a smart thermostatic 600 Watt element) is working however the red LEDs are constantly flashing and non of the temperature and on/off bits not working!! I have to buy a new element and get the old one out at a huge additional cost. Not happy at all with this.