Question about Karcher Vacuums

Open Question

My Karcher SC4 steam cleaner does not stop steaming even with the hose unplugged.

Even without the hose plugged the steam keeps coming out of the steamer. Already descaled it and keeps doing it. Any suggestions on what this problem might be and how to solve it?

Posted by Luis Quental Pereira on


5 Related Answers


  • 1 Answer

SOURCE: Home touch 300 no steam coming out

If you are using tap water - there may be minerals clogging the machine. try dumping all the water out and rinsing the machine then add distilled water. That was the issue I had...

Posted on Jul 08, 2009



  • 1 Answer

SOURCE: Shark steamer doesn't work

Taking it apart isn't all that difficult if you are vaguely handy, have the time and the patience to dig into what it took China's best engineers years to design. And it beat either sending your $150 lump to a landfill or $$$ending it back for repair$$$. Here' what I did:
We had the same problem with ours...worked for about 6 months and quit. We were using tap water. DON'T. Use distilled only.
Tried the white vinegar trick. Nope. Tried the CLR trick. Nope. Decided to disassemble, even it was junk I might learn something.
Tools: two phillips (hex) head screwdrivers, one medium, one small (not tiny). They need to have fairly narrow shanks to fit into the deep holes on the body. Needle-nose pliers. Pair of scissors.
UNPLUG IT!!! And let it cool for at least an hour before you start and take the handle apart at the pump so it's less awkward. The boiler inside stays very hot for quite a long time, even when its unplugged.
1. Take out the multiple screws that hold the purple body together. Careful...these are cheap screws (surprised?) and the heads may strip or the plastic threads may strip. You may just ending up forcing some of the screws out. Do the screws slowly and do everything in your power to keep the screwdriver head square with the screws.
2. You can't take the two halves completely apart; the wiring is in the way. That's the biggest hassle of the whole project. That and the mop head that you can't take off. Inside you'll see a metal "boiler" about the size of a can of tomato paste. It has wiring (thin) and tubing (fat) running into it. If it's still hot, let it cool.
3. There are also four screws inside that hold the water reservoir in place. If you take those you can get easier access to the boiler, though the reservoir will still be attached to the body of the unit.
NOTE: The boiler is held in place by two brackets and four very small screws and little fiber insulation washers. DO NOT take the screws all the way out (like I did) as they are extreeeeeemly difficult to get back in place. Just loosen them about 3/4s of the way so you can move the brackets and lift out the boiler. The boiler will still be attached to its wiring. Don't disturb the wires; you just have to carefully work around them.
4. With a pair of needle-nose pliers, squeeze the little spring clamp that holds the tube that runs from the water reservoir into the boiler and slide it up the tube a bit and _carefully_ slide the tube off the nipple on the boiler. Mine cracked at the end when I did this so I needed to trim the end square again with scissors. A sharp box knife would work too, but use the scissors to trim the webbed insulation fabric if needed.
4. On the other end of the boiler is a tube that goes to the mop head. Undo the clip there, too, and slide it back and again slide off the tube.
5. Look at the nipple for the tube that goes to the mop head. It is probably clogged with calcium deposits that the vinegar or CLR didn't touch. It will look solid. It is. That's probably your problem.
6. I took a power drill and a very small drill bit (1/16") and drilled out the calcium - it's very soft - to free up the hole. Then took the next size bit (3/32" or so) and widened the hole further, sort of like getting a root canal (ouch!). Don't drill too deeply into the boiler as you may hit something important. When it's open, left over water, vinegar or CLR will come out. You should now be able to blow through the boiler from the newly cleaned nipple, with air coming out the other hole (to the reservoir). The reservoir line must be disconnected to do this because there's a little one way valve in the reservoir line that keeps the from steam going back into the tank and not out the mop head (your drip coffee maker works the same way, as I also discovered when ours clogged...same problem: Calcium build up).
7. Return the two tubes to the boiler (don't forget to push the spring clips back in place) and reattach the boiler to the body. Aren't you glad you didn't take off the boiler brackets?
8. Before you do the final assembly, put in some DISTILLED water (rainwater works, too if its clean. It's naturally "distilled.") and plug it in. It probably won't steam until you pump it a couple of times but I bet it's working again. Be careful with the steam, though. If it works, do the final reassembly. If it doesn't, well you tried. But I bet dollars to doughnuts that it is working again.
Hope this solves your problem! Happy mopping.
CBear in New Mexico

Posted on Feb 16, 2010


Chris Jones

  • 438 Answers

SOURCE: DE4002 Steam Vacuum: Is there a manual for The Karcher DE4002 steam cle...

Hi There,

Here's a link to the owners manual for your Karcher DE4002.

If you found this information helpful, please be sure to rate the repair helpful, or leave feedback. This is really appreciated.

Owners Manual For Karcher DE4002 Steam Cleaner

Posted on May 07, 2010


  • 1 Answer

SOURCE: I have a Tobi steamer, The steam is not coming out

My wife has thrashed hers in her shop and it suddenly stopped steaming. It was about two years old. I managed to fix it. I dont think that the hose or the nozzel will be blocked because they are too wide a diameter. There will probably be a build up of silica or calicum inside. Unscrew the hose where it meets the machine. Remove the blue water tank. If you pour some water down the pipe from the end that you just unscrewed the hose , the water should well up in the depression where the tank sits through the little holes at the bottom. If it doesnt then the blockage is inside which is what I found. I used some decalcification liquid product ICL and poured it in from the hose end and let it soak for 10 minutes. Then I got a thin plastic tube to go in and scrape around as far as you can from the hose end. A thin bottle brush or pipe cleaner would be good. I then used a thin piece of wire to poke around the slits in the other end( depression) Then I emptied it out and continually flushed it through with water and give it a good shake holding your hand over the hose end connection hole. I found that when I emptied the water out , it contained all this silica and residue. I would have got about a teaspoon full in total. After several goes the blockage suddenly cleared itself and I found that suddenly the water was running through freely and welling up as described. I kept doing this until the gritty residue dissipated. You can hold the hose end under the tap and tilt the machine so that the water runs freely out through the depression well. I reassembled it and tried it out. Bingo just like new. Hope this helps. - Grant

Posted on Sep 15, 2010


D. Floyd Kolb

  • 43501 Answers

SOURCE: The Shark Steamer stopped steaming. Can I fix it


Here is a tip that I wrote about the Euro-Pro Shark Steam Mop and why it may not be getting steam to the head...

Euro-Pro Shark Steam Mop Problem

Here also is a link to get any of the
Shark Manuals that you need.



Posted on Dec 24, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Myy wertheim steam mop is over 2 years old. Wont steam, have followed manual instructions for maintenance etc and still wont steam. Is it time to replace it.

If you live in a hard water area and haven't been using distilled or deionised water, it could be a good time to replace it due to a probable internal build up of scale. If it hasn't already caused trouble it is almost inevitable soon.

If you have been using soft water and/or descaling regularly the steamer should still be relatively clean internally and it would be worth finding a competent person to check the circuit, cable, switch, but not at full retail prices or if it must be replaced it will be wasted money. Find a friend or neighbour who will do it for a beer...

Jun 01, 2017 | Vacuums

1 Answer

Gets super hot but steam won't come out.

i have a simular steamer made by a different company. it used to work when i had first gotten it, but i think one time that i had plugged it in for a long period of time without using it has caused the plastic parts under the trigger that releases the steam flow to melt. so now the steamer that i have still heats up really hot but when i try to push the button it does nothing, no steam will come out of it at all... so i think my mistake was plugging it in without using it for too long, making it now inoperable basically garbage. sorry to say

Apr 17, 2014 | Scunci 52067 Handheld Steam Vacuum

2 Answers

Steam will not travel through hose scunci steamer ss1000

Blocked with limescale maybe? if its heating to correct temperature to disperse steam then I has to be blocked, that or its not heating up to boiling heat

Mar 03, 2014 | Vacuums

1 Answer


Try running a phial of Kalstop through the boiler to descale the boiler unit. Calicification in the boiler and on the controlling solenoid can cause the unit not to produce steam. My boiler unit was so corroded that I had to get the boiler container completly replaced.

Feb 02, 2014 | Polti AS700 Canister Steam Vacuum

1 Answer

Hi -- For my White Wing Steam Cleaner: After I plug in the unit, and wait over 10 minutes, the Pressure gauge shows that the pressure at 2 (maybe 2.5, I can't recall as I'm typing today) -- not...

Re: Low pressure on WhiteWing steam cleaner
1. Make sure the safety switch for the hose handle on the right side of the hose handle is turned to the closed position. To do that, push it away form the hose.
2. Make sure the steam release button (next to the on/off button on the control panel on the steamer) is in the Off position.
3. Make sure the safety cap is tightened.
4. Make sure you have enough water in the tank (at least half a bottle of water)
I hope this helps.

Jul 31, 2011 | Vapor WhiteWing Steamer Canister Vacuum

1 Answer

How do i descale a SWAN iron model no S15030N. CAN I PUT DESCALER INTO WATER STORAGE TANK

The best and cheapest way to descale irons,steamers, etc. is to use white vinegar, mixed 1 cup to a quart of water. Pour in the iron and allow to steam. The vinegar will dissolve the calcium, which is the blocking scale. Do this a few times toensure that the holes are clear and operating correctly. For the last rinse, put a little lemon into plain water and allow to steam. This gets rid of any vinegar smell.

Jun 09, 2011 | Vacuums

1 Answer

I have a shark steamer and steam comes out, but it is not hot. i can literally put my hand in front of it

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}
The steam will cool very rapidly and it is possible that yes you can place your hand in front of it... if it wasn't a steam vapor it would not spray out....

The heating element may have died or there is an obstruction...

Here is a tip that I wrote about the Euro-Pro Shark Steam Mop and why it may not be getting steam to the head...

Euro-Pro Shark Steam Mop Problem


Aug 21, 2010 | Euro-Pro Shark Steam Mop - Gray/ Purple...

1 Answer

Euro-flex monster baby 1000 watt will not release steam

try running a descale through the unit. probably blocked with mineral deposits. Descaler available at most steamer retailers

Sep 20, 2009 | EuroSteam Vapor Steam Cleaner Vacuum

1 Answer

SC505H Portable Steamer with broken hose in the handle

I also have the Shark steamer worked great for a while lots of pressure but then pressure started coming out of the insert part for the wond not sure if its the o rings that need replaces or just the wond it self can any one help me

Jun 24, 2009 | Euro-Pro Shark SC-505 Handheld Steam...

Not finding what you are looking for?
Vacuums Logo

Related Topics:

138 people viewed this question

Ask a Question

Usually answered in minutes!

Top Karcher Vacuums Experts

Martin Grech

Level 2 Expert

94 Answers

Brad Brown

Level 3 Expert

18321 Answers


Level 3 Expert

85239 Answers

Are you a Karcher Vacuum Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides