steam iron 1200W Tesco Value range (New Marston OX3)

steam iron 1200W Tesco Value range – we only used it for a few months and then replaced it with a bigger heavier model. Tested it just now and seems to be fully functional. there is a small stain of burnt material on the soleplate (see second photo) that emits a bit of smell when it warms up but behaves itself afterwards.