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Karcher 550M waterblaster, yellow trigger on nozzle handle appears to be jammed and will not operate the machine

Tried nothin but it worked fine about a month ago and I just stored it as normal and today this mystery problem has happened.

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All I can say is, You get what you pay for. I won't work on this stuff.

Posted on Dec 06, 2014


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Posted on Jan 02, 2017


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1 Answer

Power head does not work canister does . There is voltage at the power head.

Although it could be a multitude of things that keep the power nozzle from operating properly, the most likely is, since it's an Epic series, Is that the power nozzle elbow assembly needs replaced as the fine wires and top of the elbow tend to break/short after 5-10 yrs. of use.
It's also very well possible that the power nozzle reset switch or hose switch at top of handle is defective. Try plugging the power nozzle directly into the hose handle assembly and turn machine on. If the power nozzle still doesn't work, it's definitely a problem directly with the power nozzle.

Hope that helps!

Mar 14, 2015 | Electrolux Epic 6500 Vacuum

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Karcher sc 952 having problems with no steam coming out.

this machine uses an electrical solenoid to open the flow of steam from the heater..... the switch is in the hand trigger and the valve on the machine.... one of these is at fault

If you have a Karcher then you should always post your machines barcode.
The karcher barcode is on a silver sticker and is usually 15 digits long. Example 156987400000123 is actually model 1.569-874.0 and serial number 00123....

Aug 04, 2013 | Karcher DE4002 Steam Vacuum

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Cant get my soap dispenser hose working on my karcher winner 10, any suggestion?, lost my instructions manual so dont know weather i need to be doing anything for it!

If you have not yet found a solution, then here are some steps to take.
1. The soap dispenser only works on low pressure!!!!!!! So you have to REMOVE the high pressure Sprayer so that all you use is the Trigger Gun without the Extender.
2. Pull out the thin Plastic Hose with the filter attached in the end, and insert into your container of detergent.
It will only splatter the detergent over the area you want to clean, so you will then need to REATTACH the SPRAYER into the hand gun to work with the soap to lather, clean and spray of till clean.
This seems to be the way the system works on this model......also known as K2.36M (AU) in Australia or (EU) in Europe on the site then Service then Manuals. or on the link below.
Hope this helps any of you who has misplaced their Owners Manual just like I did and had a great problem trying to find a link as Karcher doesn't recognize the Model No: as Winner 10 or 11.

Cheers, Luke

Nov 19, 2010 | Karcher Vacuums

2 Answers

Sometimes the flow indicator doesn't spin even tho it has solution. I've tried loosening & tightening the lid. what else can I try?8910 Bissell proheat

noavatar_s.gif xpinto
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I wasted a lot of time following the expert advice to repair my unit by taking the cover off of the main unit and using compressed air to blow out the lines. The problem turned out to be in the lower panel of the handle (4 screws to remove). The heater is a large block of aluminum with a stainless cover held on by screws. The lower nozzle of the heater was blocked by water/soap reacting with the aluminum while in storage. Blowing out the lines as recommended with air compressor just warped the stainless cover resulting in time spent flattening this back into shape.

I would recommend the following steps:
1. Make sure that fluid levels are up in both the supply water bladder and the soap dispenser.
2. Pry off the left side access cover and ensure the pump drive belt is still in position. Switch the unit on and see that the pump is spinning.
3. With the unit plugged in and the handle laying flat on the floor (using the foot release lever) , remove the clear bezzel over the red impeller, switch the unit on, and pull the trigger for soap. Liquid stream should shoot straight up past the impeller. If not the lines are plugged somewhere.
4. Unplug the electric power. Remove the four screws and remove the lower handle access cover (with the red light in it).
5. All the fluid lines are clear plastic so you can identify which have fluid movement.
6. Disconnect the line from the soap activation switch (pliers on the squeeze hose clamp) feeding the heater (large aluminum block). Blow air (with your mouth NOT the air compressor) into this line and see if fluid movement is observed in the clear plastic lines. A little tentative about soap in your mouth, use a turkey baster filled with water). I saw no movement of liquid. Nozzle exiting the heater blocked.
7. Remove this hose and use a small drill bit to twist the debris loose. You may elect to remove the heater shinny cover for better access. Gaskets are reusable. Blow thru the hoses again to assure blockage cleared.
8. Button unit up.
9. With the clear bezel off and the red rotor exposed, plug unit in, soap and water supplies in place, switch on power and pull soap trigger. Should see vertical stream. Mine was about 5 inches initially then jumped to about 10 inches high. Knew blockage was cleared.
10. During shampoo operation if soap stops (red impeller stops spinning) first check fluid levels and fill. That doesn't work, I unscrewed the clear bezel and pulled the soap trigger with the unit switched on. Less than a second vertical stream appeared every time.
11. Now you know how to fix and achieve continuous operation.
12. The unit must be thorougly cleaned before putting it away for storage to prevent the reoccurance of the blockage in the heater. After following the manufacturer's instructions, by flushing (operating the unit) with clear water in the bladder and the soap dispenser, I did one final thing. By removing the fresh water storage/collection plastic container, a black round fitting is exposed that channels the water from the bladder into the spray system. I used a length of automotive heater hose that was the same diameter as the seal on this fitting (turkey baster with bulb off will work) and blew hard while the unit was switched on and the clear bezel was off. One last big blast of water spewed from the unit. This cleared all the lines from the bladder through the pump, switch, and heater and blows it out just prior to the spray nozzles.

This is long but specific.

Not so technical, take each step as presented.

Good luck.
Plano Tx

Oct 13, 2009 | Bissell 8910 ProHeat Clear View Upright...

1 Answer

No spray

Here are 3 common things that causes this problem:

• clogged spray tips
• defective solenoid valve in the base
• defective trigger microswitch in upper handle

Mar 16, 2008 | Bissell 9500 ProHeat 2X CleanShot Upright...

1 Answer

Can't get water to spray out of the hand tool nozzle

When you attach the main suction hose to the front of the machine, you also have to connect the soultion hose to a valve located on the side of the machine. When the machine is running, take a small screwdriver and depress the centre of this valve. You should get a spray of water out of the valve which will confirm the valve and pump is working. Now, connect the small solution hose, making sure you push it on all the way. When you pull the trigger on the handle of the hose, you should get spray. If it does not, you may have a plugged nozzle sprayer.

Feb 16, 2008 | Hoover F7425-900 SteamVac V2 Widepath...

2 Answers

Plugged water line?

The trigger in the handle is clipped into two plastic snaps. When the trigger is pressed, the trigger pivots in these snaps and the pressure is transmitted through a rod connected to the trigger down to a valve located under the water tank. If the machine has been carried by the top handle insead of the carry handle that is incorporated into the water tank, the extra stress on the trigger will break off the snaps and the trigger will not function properly. Take the water tank off the machine and press the trigger. Observe the valve below the tank support and see if the rod is pressing down on it.
You might also check the hoses that come down the handle where they turn at the bottom of the tank. Sometimes they kink there and this will restrict water flow.
If you have been using the wrong shampoo, that is shampoo not designed for hot water extractors, it is possible for it to congeal in the lines and plug them.

Jan 27, 2008 | Hoover F5807 SteamVac Wet/Dry Vacuum

1 Answer

No steam coming out

The fall might have damaged or moved the trigger so that it does not depress the valve on boiler.
Try removing the screws which hold the handle together. The cap needs to be removed to allow the handle to separate.
Once the handle is apart check the trigger piece looking for any broken parts.

Jul 07, 2007 | Euro-Pro Shark SC-505 Handheld Steam...

2 Answers

No spray for my upholstery cleaner!

After tearing things down and inspecting the handle switch, etc., I found that my problem was detergent. It sets idle for a while or doesn't get used very much and the detergent dries and actually clogs the inside of the hose. I cleared it by fully extending the hose, pressing the button and allowing the clog to clear itself. The built in heater helped out a lot once the flow started again. I used a can of compressed air to provide a little blow back to get things moving but not too much or the pump would be damaged. Remove the tool and hold the nozzle into an empty cup while depressing the trigger. A warm vinegar solution clear things out nicely.

Jul 06, 2007 | Hoover F5881-900 Vacuum

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