Constant steam flowing issues:
I have a Tefal GV8150 bought from Australia although I am now based in the UK, approx 8 years old...been working like a dream until today. Best thing I've bought!
Issue: blowing out constant steam non stop, steam button not engaging as a result. No error lights, but the iron did get hot.
Been working on this for last 3 hours - rinsing the anti-calc tank - got a few bits of brown flakes out (have been cleaning this periodically anyway). I used vinegar, lemon juice in the both anti-calc tank and water reservoir. Didn't help much. Problem persisted with constant steam coming out.
Finally used a descaler (Brand was by Astonish) from the Pound Shop in the water tank. Let this work through for about 45 mins, after which a brown toffee like gunk spewed out from the iron plate holes....never seen anything like it and very random! Almost like a molten metal. Not sure what it is. Steam stopped coming out so thought result! worked fine then 20 mins later had the same problem i.e. constant steam coming out from plate again. After putting more descaler in the water tank and letting it work through, the constant steam stopped. The iron functions as normal again after some more gunk came out from the holes in the plate. Note the gunk is very messy and will stick to everything...you may need a scraper to get it off...and it make a mess of teh iron plate (which will need to thorough clean)
I wouldn't bother with vinegar...get a good quality descaler. I called Tefal who basically advised after 4 years, it was unlikely part were available. What a set of con artists!
Andy, January 2017