I found that by taking a long needle type or metal skuer, that by continually cleaning the hole that the steam comes out of , eventually it began to work. I also put a combination of water and vinegar in it. Eventually it began to work again after clumps came out of it.
Try using Formic Acid, smells a little but removes scale wonderfully.
Hope you are well?
Mike Sessions STERLING SERVICE UK LTD
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