2 electric heaters, spares or repair (Horspath OX33)

I have 2 electric heaters available (1 DeLonghi, 1 Dimplex) that have been unused in a long time and stored in a garage. I got the DeLonghi working this morning but it’s stopped now, I can’t get the Dimplex to work at all. Both definitely have power to them so the cable and fuses are fine. I don’t have the time and knowledge to take them apart to see if it’s a simple fix but if you do you’re welcome to them. Collection from Horspath