Hi, my name is Mike and I have been in the home improvement and repair field for 20 years. I will be very glad to help you today. The iron gets scale deposits that block the holes and passage ways. To solve this issue empty the water out and fill it half water and half vinegar. Leave it on and once the vinegar breaks up a bit of the scale and begins to steam let it steam until the steam runs out. After that flush it 4 or 5 times to clear any loose debris.
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