The threads have probably stuck together with limescale. Push down with reasonable force while turning the cap, like you would if you were trying to get in one of the childproof bottles. This should crack the limecale and allow you to take it off. Then descale the threads on the top and machine using kalstop or whatever you use.
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Your machine need to reach boiling point to produce stem? Then check if all the sustem is sealed other than the pip outlet gun and it should now operate with the gun trigger ( pull to operate, but only when the water within the vessel is boiling, producing steam)Hope this helps Regards Mike
OK. This is an actual guaranteed solution to the Shark "No Steam"
problem. The problem is well documented as hard water clogs the steam
mops head. And using distilled water should prevent problem (not
confirmed). But now that you have the problem, how do you unclog?
off, Ive had two now. And my solution probably invalidates 1 year
warranty, but I'm not interested in going through all the rigamarole of
taking my mop back to the store. Maybe yours has expired or you want
solution now like me.
This requires a drill. If you've tried the
white vinegar route like me and it hasn't worked, and the toothpick,
now it's time to get serious.
Remove the four screws. Then
slide connection back and remove final two screws. Try blowing thru the
small round hole at the end of the connector. If you can't blow
through it, the smallest choke point near the hole is your problem.
the smallest drill bit in the standard drill set (not sure the size but
it fits easily in the hole with room to spare) drill gently into the
hole until it breaks thru the first resistance. Now blow through the
hole. It should blow through easily now. Run some white vinegar thru
to loosen up and remove other hard water deposits if you like.
Replace nozel. Replace two screws, Replace 4 screws. Done.
Use only bottled distilled water from now on would probably be a good idea.
my opinion the problem is a design flaw built in by the Shark people.
Appropriate name. Its called planned obsolescence. :( It breaks, you
buy a new mop head (or entire mop if you can't find their part's
these machines like to be used regularly. if allowed to sit (especially after using tap water) they may buld up lime deposits on valves and cause them to stick. you could try filling with vinegar and let set, also tilt it so vinegar runs into valve area. you could heat the vinegar and it will run through the trigger valve area. if this doesn't work you'll need to replace trigger valve. Jim
Hi you need to put 5ml of Kal Stop fo Polti machines into 1000/1500ml of water into the tank, The stronger solution is better (1000ml) Let it heat up and this should break down the limescale on the solenoid. I tried this today and it has worked saving ££££'s in repair by Polti.
Had the same problem with a polti vaporetto 1500 ( vtt 1500 ) after butchering the big valve on the top I realised that the problem was that there was a blockage in the black pipe that comes from the machine to the trigger, the pipe that carries the steam in other words, so I got a piece of wire ( brake cable form a bike shop ) long enough to go at least half way down the pipe and then I pushed the wire down the hole at the trigger end and then from the other end that joins to the polti and hey presto the blockage was gone and the machine works fine again. If you use the machine again after you have cleared the blockage from the pipe you should be able to remove the valve from the top remeber that the water is now steam so it is very hot and will burn you so be carefull when opening the valve when hot I think that you will have to open it when it is warm not hot as what has happened is that scale has got in the threads of the valve and sealed it, so if you get it undone ( try pushing it down hard as you turn it Whilst it is warm only not hot ) then get some kettle descaler and put some in a bowl of hot water and put the valve threaded end in the descaler for 10 minutes to get rid of the scale and in the mean time put some descaler around the threads on the polti where the valve goes this will allow the valve to screw back on easily and you will be back to normal use again remember to keep the valve screw threads free of scale in the future I have only just reallised this so dont feel alone.