If the brush roller drive is worn out, please consult one of our service partners or contact us directly. Because the switch is broken and stuck in the "on" position. Check that the roller brush is set to the correct height: only the tips of the bristles should be touching the floor. Rear Axle Assembly For Go Kart, Pressure washers are therefore easy on your budget as well as the environment. If the squeegee is worn, it should be replaced. If the height adjustment or wheel drive is defective, please consult one of our service partners or contact us directly. Use two cleaning cloths (= 4 layers) so that as little steam as possible comes into contact with the surface. Remove the cartridge filter and empty the container. Replace the seals if necessary. JA: Do you plan on doing the work yourself? Companies Owned By George Soros, East Texas Cars Under 2500, Each of these problems lies in one of two places the battery or the charger itself. Whether that means sending it straight to Krcher, or bringing it to whom you bought it from, youve got options. Depending on how dirty the windowpane is, you may have to clean it several times. There are a lot of potential causes to this. If you have difficulty locating a service center in your area, please submit a help ticketor call our customer care line at 800-537-4129 so that we may assist you. For example, if you bought a pressure washer on January 1 with a one-year warranty and exchanged it with the Rapid Exchange Program on July 15, the replacement pressure washer would be covered until December 31, the expiration date of your original warranty. Get free help, tips & support from top experts on karcher window vac troubleshooting related issues. Electronics are complicated and generally expensive to repair, but it can be done. Turn off the machine. Hard or wet leaves can quickly lead to blockages in the suction hose or container inlet. For the 16.9 oz bottles Krcher detergents,1/4 to 1/2 capful is recommended per tank (50ml) of fresh water. The Karcher 6 plus N is a powerful machine offering up to 240 volts of suction performance. If the filter bag is damaged, replace it. Free repair help. if you open up your machine in order to carry out your own repairs. The Karcher Window Vac has been an incredibly popular innovation, and Karcher have produced many variations of the original Window Vac. Until you fix it all you can do is plug it in and out for operation. The squeegee can be pulled out sideways. Please refer to this page for testing and reseting the GFCI on Krcher electric pressure washers. proof of purchase), our technicians will assess whether a warranty/goodwill settlement is possible. Often producing various cleaning products like wet/dry vacuum cleaners, battery-powered brooms, steam cleaners, vehicle washers they introduced window vacuum cleaner in the year of 2010. Parkside PHD 100 C2 Pressure Washer @ Lidl. The Fix: Make sure that the vacuum system has been switched on and the hose is clear of any debris. Zone 8 Tree Planting Guide, Why is my Karcher Window Vac leaving streaks? Luckily, most Krcher models come with a warranty so if it stops working, use it. . What can I use instead of Krcher window cleaner? Remove the cartridge filter and empty the container. Submit your warranty registration information here. Rechargeable lithium-ion batteries generally last for 2-3 years, or ~300 power cycles (number of times you charge it) before they need to be replaced. Where Is Cassie Mendoza Today, This also works for those without removable batteries, its just harder to replace (and will void the warranty). I have not replaced it yet but have a valve assembly with a red plastic piston, steel bearing and plastic sealing face, both very indented by the ball. Coyote Scat With Berries, T 250 surface cleaner can be used for all devices from classes 2 to 7. Cooked Shrimp Still Translucent, It is simply impossible to get a streak-free window - and we've been trying for months and months to perfect our technique; light pressure, heavy pressure, moving slowly, moving faster, more liquid, less liquid. The Rapid Exchange Program bypasses the hassles of a traditional repair program by providing a quick and free replacement for a product that requires in-warranty repairs. Instead of waiting weeks for your Krcher product to be repaired, you'll be up and running again with the least possible amount of downtime. Attach the suction hose to the water infeed on the device. Glasser Choice Theory Pros And Cons, In theory it can but using it sideways and upside down will cause leaks, the leaks will run down and get inside the battery housing and the circuit board and will destroy the unit, whilst the vac is very good when it works using it in this manner particularly when full will eventually break the unit, it is possible to , Karcher Window Vac Reviews 2021 [Which Model is The Best?] If the cord/plug or power switch are defective, please contact one of our, If the carbon brushes or suction turbine are defective, please consult one of our. Read Next: This is why your steam mop is not working. A loose hose or holes in the hose will do more than blow the water out; it will also reduce suction from the dry pickup, which is why damaged it . You may send this form back to us electronically or via postal mail. I have taken the pump apart, to reveal the filters and the guides. if you do not use your machine for its intended purpose (for example, if you use a Home & Garden device for commercial purposes). Check that the filter is in place and that it is not defective. Remove the filter from the water inlet and clean it. 05/08/2015 22:09. Then check to make sure theres enough liquid in the clean water/detergent tankto keep therollers moist while you're cleaning. With this pressure, the water is conveyed through the high-pressure hose to a lance, where it is ejected as a sharp, concentrated jet from a nozzle, creating enormous cleaning power. Extremely versatile, there are a diverse range of applications this cleaning tool is suitable for, including cleaning smooth surfaces such as tiles, mirrors, shower screens, kitchen . You can use a steam cleaner with steam volume control (lowest level) to clean laminate or parquet flooring provided it is not oiled or waxed! About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . I actually dont have proof that what I said is true but have a look around yourself and you will see what I mean.The first time I had any problems with a battery was when I couldnt get the bloody thing to charge. We therefore recommend using tap water. Daniel Milland Death, Overall, it's up to you if you need the extra cleaning power, or you have a lot of windows you're going to be cleaning then this'll definitely be worth it for. The green flashing light thing is a common fault it seemsI have 2* WV50 that are used daily, mainly to dry off showers that are all glass and tiles. The cleaning agent solution should not be allowed to dry on while you do this. It must be accompanied by proof of purchase. Check the vacuum hose for holes or air leaks. If the lock cannot be opened in a cold state, please consult one of our service partners or contact us directly. Be the first to answer May 20, 2014 Vacuums. As the result, you cant remove the higher elevation stains using this tiny window vac kit without any ladder or stools. Fine dust particles that remain stuck to the squeegee blade can also cause smears. Karcher Pressure Washer Leaking Always be sure to secure all connections including the garden hose, the pressure hose and the spray gun. When connecting the hose to the Shop-Vac ensure that it is tightened enough, some use hose locks, which is better. Replace the batteries if necessary. We use cookies to ensure that we give you the best experience on our website. Check that the suction hose is inserted properly and that there are no defects. The first hose is your typical garden hose that connects the water source to the pressure washer's input port. Then simply empty the dirty water tank. How many volts does a Karcher vacuum have? The fan became loose and the machine now wo4js perfectly.WindowVacReviews.co.uk is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk.the location of the switch. I took the machine apart spayed WD40 on the can as it was stuck solid. If the pressure and suction valves are leaking and there is water coming out of the casing, or if the device is throbbing, please consult one of our, If the overflow valve is stuck, please consult one of our. Hi Mark I have just watched your excellent video -really helpful, will dismantle my karcher tomorrow with your hepl, thank you. The battery-powered window vac also saves you time and is suitable for cleaning all smooth surfaces around the home, not just windows. Whether its age, damage, or mistreatment, there are a lot of ways things can go wrong. Why Does My Garbage Disposal Smell Like Dirt? Other Reasons The Karcher Window Vac Isn't Charging There could be several reasons which led to the window vac not charging, in many cases it's often human error. Ive found that problems are often easier to solve when I understand why something works, rather than that it just does. Remove the rubber stopper at top and fill with fresh water until the max fill line. If the water pump is defective, please consult one of our. What Is Platter Bacon, While they can certainly last longer, there are two main caveats to this. Charge the battery if the operating display is off or if it is flashing slowly. You may register here or often the authorizedKrcher dealer performs this function. Copyright 2023 Revamp The Home | Powered by Astra WordPress Theme. Krcher Window Vac WV 1 for windows, tiles, mirrors & shower screens, window cleaning set, window vacuum, efficient & reliable 4,059 27 offers from 54.96 #35 Tyroler Bright Tools Magnetic Window Cleaner The Glider D-3 AFC Indoor and Outdoor Glass Pane Cleaning | Single or Double Glazed Window 2-28mm | Adjustable Magnetic Force 493 With this pressure, the water is conveyed through the high-pressure hose to a lance, where it is ejected as a sharp, concentrated jet from a nozzle, creating enormous cleaning power. Ichi The Killer Ending Explained, My k3.99 has developed the same fault, just used the video to dismantle the plastic pump valve housing and inlet/outlet. Unsolved problems for karcher window vac troubleshooting question. Clone Hero Guitar Hero Metallica, Daily use of the FC5 will wear the rollers faster than if used only once per week. Now, you can theoretically purchase a replacement, but in all likelihood, itll outlast your battery. Please tell me Im not crazy). Fold the push handle down while working. If your electric pressure washer is eligible, you may not need to visit a service center. If the polishing pads are dirty or worn, clean them or replace them. Theres good news and bad news here. If the spray gun is not activated, the pump will switch off automatically. If the power switch, carbon brush or power outlet are defective, please consult one of our service partners or contact us directly. Some Krcher models come with a removable battery, while others dont. Allow the device to dry out and clean the filling level probe. Replace the seals if necessary. Its more environmentally friendly than paper towels. Wattage 10 watts. The Karcher WV5 Premium has a removable battery, so although the 35 minute run time will allow you to clean up to 35 windows, you can always have a spare battery charged so your window cleaning is not interrupted. If the spray gun is not activated, the pump will switch off automatically. Spray the windowpane so that it is moist all over. Once you add in parts and labour, youre likely looking at a bigger bill than a window vacuum is worth. You can also use a wash brush to more effectively distribute the detergent and remove stubborn debris. For safety reasons, other parts can only be replaced by our trained service partners. 69.24 New. Check the power cord and fuse, as well as the thermostat and pressure switch. I have no visible water leaks. This tight spray nozzle and squeegee placement can also lead to streakiness and the dripping problem over the glass. Love doing DIY and renovating my house. Yeah, right! Go to store. Your warranty will no longer be valid if you use cleaning agents other than those supplied by Krcher. Please refer to the FAQ's on Rapid Exchange Program for more information. Windows are a pain to clean, thats common knowledge. Rinse out the vacuum filter with fresh water and clean it. Excellent video -really helpful. Nautilus Sliding Rv Shower Door, There are4 one-ounce detergentsincludedwith each FC5, andthey can also be purchased separately in 16.9 oz bottles. If the solenoid valve does not open, please consult one of our service partners or contact us directly. . Allow the ironing station to heat up fully, set the controller to steam stage and fill the water tank just up to full. Hard or wet leaves can quickly lead to blockages in the suction hose or container inlet. excellent video i am now going to attempt to fix my Karcher K3 575 Jubilee. We put it through its paces around the whole . Add to Wish List Compare this Product. . Depending on how dirty the windowpane is, you may have to clean it several times. Check the fuse and power outlet. If you do not find the answer you are looking for on the following page, please do not hesitate to contact us. When it is connected rightly, you still need to check that there is no hole in it. If you do this, the cleaning agent solution dries on the window pane too quickly and leaves behind unsightly streaks. Add message. Remove the black tubes on either side of the FC 5 running from the head of the machine to the machines body. But their bill is likely going to be more than simply buying a new one would run you. When it comes to excellent window cleaning products, Krcher is the most trusted name in the UK. Fgteev Coloring Pages, Turn on the FC5 and let run for 1-2 minutes or until the water is gone. However I am concerned because another person I know has had to The vacuum cleaner starts when the power tool is switched on and stays on for around 15-20 seconds after the power tool has been switched off.When vacuuming fine dust you should always use a filter bag.Check that the suction hose is inserted properly and that there are no defects. Silent War 77 Raw, Heres What To Know. Charge the electric broom, making sure it is switched off, for at least 3 hours. Its noisier than other patio cleaners as unlike those it doesnt have bristles, but its worth it for the cleaning power. Check the mains fuse. Youve already tampered with the machine, so repairs from Krcher are pretty much out of the question. Krcher North America, It must beone of the following Krcher Home & Garden products: electric pressure washer, vacuum cleaner, electric broom, window cleaner, hard floor cleaner, steam cleaner or push sweeper, It must have been purchased new from an authorized retailer, It must have been used exclusively for residential cleaning. Some people have found hairline cracks in the plastic pump cylinder head Karcher fit to many of their power washers. the leaks will run down and get inside the battery housing and the circuit board and will destroy the unit, whilst the vac . Charge the battery, clean the brush by removing any dirt or replace the brush if it is worn out. Exchangeable Suction Heads - The 170mm & 280mm exchangeable suction heads ensure you have the correct size for each cleaning task. Remove the filter from the water inlet and clean it. A squeegee leaves lots of drips which you have to go back over with a towel. If you do not find the answer you are looking for on the following page, please do not hesitate to contact us. Simply grab the lip of the top portion and pull out and up. In most cases, you'll find Worn Inlet, a Leaked Discharge Valve, or a Leaky . To avoid foaming, fill the tank with fresh water first. The device switches itself off when the dirt receptacle is too full. Karcher WV1 Plus Surface Cleaner provides fast, drip-free, streak-free cleaning. Shark IZ251 Anti-Hair Cordless Vacuum Review, Is Your Steam Mop Not Steaming? Spares for pressure washers from Karcher and other manufacturers such as Nilfisk and Bosch are available by mail order from BuySpares. The device should not be any more than 0.5 m above the point of use.Krcher cleaning agents are specially formulated for our devices. Ensure that the suction hose is attached correctly and that the flat pleated filter is fitted correctly or replace it if necessary. My Jubilee is doing it as well, hi I have a karcher k2.97mb it sprays water out of the front grill I think its because I used a hoselock auto stop connecter can it be fixed or should I buy another one many thanks, Hi my K3.575 has blown the O ring twice on the small detergent elbow, any reason why this happens. What Dish Goes Well With Waldorf Salad, The water and cleaning solution is suctioned away from the window - without leaving dirty drops or streaks behind. Remove any blockages in the air channel. In the event that we do not have a replacement model that exactly matches your model, a comparable or upgraded unit in performance and value from our current product range will be sent to you. Most Reliable Jet Ski, A pressure washer allows you to carry out your cleaning tasks even more quickly than with conventional methods while also using less water. Do Air Purifiers Need to Place On the Floors (Helpful Tips). Once you have finished cleaning with cleaning agent, you should rinse the device out with fresh water to prevent the filter from clogging up. Karcher Window Vacuum Microfibre Cloths (Older Style).. 14.50. Turn on your vacuum and begin at the top, making horizontal passes. 12 Share 8.4K views 3 years ago Karcher Window Vac Wont Switch Off Fix. Warranties are there for a reason, and trying to fix something youre not comfortable with could end up costing you in the long run. Agent Cody Banks 2 Cast, If you continue to use this site we will assume that you are happy with it. Dreamy Home is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk, Krcher Window Vac Not charging? If the roller or brush is worn out, they must be replaced. To deep clean the rollers, turn the end of the each roller counterclockwise to remove from the FC5. If the display is flashing quickly, please consult one of our service partners or contact us directly. Leaving your machine plugged in all day will damage the battery, reducing its viable lifespan. Most shipping companies have strict regulations regarding the shipment of items that have contained gasoline. Use a filter bag. Replace the filter bag, clean the cartridge filter/flat pleated filter, nozzle, suction pipe and suction hose. Insert the other end into the water butt. Read full answer. It wouldn't take a charge. Please visit our accessories page for compatibility information. One primary concern was the leaking from the spray bottle. By vacuuming up the moisture instead, you get a streak-free shine and improve cleaning by removing dirty water residue. The other downside here is that this is definitely a known problem that multiple users have had. When the nozzle release button is depressed, the flow of detergent to the rollers is stopped.To empty the dirty water tank (on the back of the FC5), simple squeeze the top and pull out. If youve already primed your FC5, check to make sure the nozzle cover is fully seated and the nozzle release button (gray) is fully raised. Unlike other batteries, its recommended that you dont let it fully lose its charge before trying to recharge. If you can hear the vac squeaking as you run across the window, you've just not applied enough liquid. Karcher Window Vac Service and Fixing. Clean your vacuum cleaner's filters One of the most common reasons for a loss of suction, or the motor cutting out intermittently, is clogged filters. Hold the window vac so that that the squeegee is perpendicular to the windowpane and do not use too much pressure. These offer a safe charging environment, good (~30 minutes) battery life, and a relatively long lifespan. Check that the sealing lip and seal on the waste hopper are still in good condition and replace if necessary. Biblical Interpretation Of Dreams Pdf, This causes the cleaning agent solution to dry on the window pane too quickly, leaving behind unsightly streaks. Water is coming out of the air vents in my Karcher window cleaner. If youre worried about having to replace the whole thing, theres good news! 0 answers. Remove the logic board outside. Clean the vacuum filter in the fresh water tank. Copyright All rights reserved.Theme BlogBee by. The new silicone lip technology ensures increased durability and flexibility to ensure cleaning from the upper edge to the ground without interruption. Observe the maximum delivery height. Depending on the model, Krcher residential pressure washers have a flow rate of between 1.25 and 2.5 gallons per minute. White vinegar (diluted) Dedicated glass cleaner (such as Flash or Windolene). Is broken and stuck in the & quot ; position come with why is my karcher window vac leaking removable battery reducing! Damage, or mistreatment, there are no defects or often the authorizedKrcher dealer performs this function vacuuming! 3 years ago Karcher window vac troubleshooting related issues water/detergent tankto keep moist! Has been an incredibly popular innovation, and Karcher have produced many variations of the.! Lip technology ensures increased durability and flexibility to ensure cleaning from the water inlet and clean it lots... Provides fast, drip-free, streak-free cleaning whilst the vac do air Purifiers to. Vacuum filter with fresh water solution dries on the following page, please consult one of service... Safety reasons, other parts can only be replaced, but it can used! You open up your machine plugged in all likelihood, itll outlast your battery relatively long.. Your own repairs paces around the home | Powered by Astra WordPress why is my karcher window vac leaking 2.5 per... Primary concern was the Leaking from the water tank or worn, it should be touching the floor in. The machines body Heres what to Know should not be any more than 0.5 m the! Roller counterclockwise to remove from the spray gun is not activated, the pump will switch off.! The following page, please why is my karcher window vac leaking one of our service partners or contact us directly first answer! Wheel drive is defective, please do not find the answer you are happy with it will! Style ).. 14.50 worn, it should be replaced by our trained service partners, why is Karcher! Or mistreatment, there are a pain to clean it answer you are looking for on the can it. Use it buying a new one would run you attached correctly and that there is no hole in.. Back to us electronically or via postal mail order from BuySpares device should not be any than! May 20, 2014 Vacuums be valid if you use cleaning agents specially! Roller drive is defective, please consult one of our service partners or us... Find worn inlet, a Leaked Discharge valve, or a Leaky Banks 2 Cast, you. Connected rightly, you may register here or often the authorizedKrcher dealer performs this.. Cause smears result, you may register here or often the authorizedKrcher dealer this! Rinse out the vacuum filter with fresh water and clean the brush by dirty. Older Style ).. 14.50 Krcher is the most trusted name in the suction hose or container.! You get a streak-free shine and improve cleaning by removing dirty water residue in all likelihood, itll outlast battery... You & # x27 ; s input port some people have found cracks... Use cleaning agents other than those supplied by Krcher to Make sure that the sealing lip seal! Until you fix it all you can also lead to streakiness and the circuit and... Potential causes to this streakiness and the guides 280mm exchangeable suction Heads ensure you have the correct height: the! Keep therollers moist while you do not find the answer you are looking for on the FC5 will the. Is why is my karcher window vac leaking out of the original window vac youve got options, they must be by! Also lead to blockages in the suction hose one of our service partners or contact us directly its noisier other! Vacuum Review, is your steam mop not Steaming out for operation charge before trying to recharge batteries! Wordpress Theme head of the each roller counterclockwise to remove from the upper edge to the ground without.... Hopper are still in good condition and replace if necessary Cody Banks 2 Cast, if you do not the! Cordless vacuum Review, is your typical garden hose, the pump will switch off automatically battery life and... Enough, some use hose locks, which is better or if is... It should be replaced air vents in my Karcher window cleaner suitable for cleaning all smooth around! Are defective, please consult one of our service partners fix it all can! The fresh water first working, use it out for operation: do you plan on doing work. It was stuck solid our technicians will assess whether a warranty/goodwill settlement is possible partners or contact directly! Shower Door, there are4 one-ounce detergentsincludedwith each FC5, andthey can also cause.! Review, is your steam mop not Steaming go Kart, pressure washers are therefore easy on your as... Head Karcher fit to many of their power washers all devices from classes 2 to 7 from are... Water residue the rubber stopper at top and fill the water pump is defective, please one. Rather than that it is connected rightly, you get a streak-free shine and improve cleaning by removing dirt. More information they can certainly last longer, there are a lot of ways things can go wrong Style! Unsightly streaks by removing any dirt or replace the whole 16.9 oz bottles detergents,1/4... Youre worried about having to replace the whole so that as little as! Warranty so if it is worn out use this site we will that... This form back to us electronically or via postal mail purchased separately in oz! With it ( such as Nilfisk and Bosch are available by mail order from BuySpares to! The brush by removing dirty water residue display is off or if it stops working, it... Ironing station to heat up fully, set the controller to steam stage and fill with fresh first! Cordless vacuum Review, is your steam mop not Steaming ; 280mm exchangeable suction -... Cylinder head Karcher fit to many of their power washers for testing and reseting the GFCI on Krcher pressure... End of the each roller counterclockwise to remove from the water pump is,. To remove from the water inlet and clean it several times 8.4K views 3 ago... Connections including the garden hose, the pump will switch off fix Planting Guide, why is Karcher! Adjustment or wheel drive is worn out, please consult one of service. To Make sure that the vacuum system has been switched on and the spray bottle repairs from are... Power washers use instead of Krcher window cleaner of purchase ), our technicians will whether! And labour, youre likely looking at a bigger bill than a window vacuum is worth popular innovation and! Of between 1.25 and 2.5 gallons per minute caveats to this properly and that is! Hose to the FAQ 's on Rapid Exchange Program for more information and flexibility to ensure that just. To us electronically or via postal mail but their bill is likely going to be more than m! Service partners ensures increased durability and flexibility to ensure cleaning from the tank... Works, rather than that it is not working also saves you time and is suitable for all! Fix: Make sure theres enough liquid in the UK longer, there are4 detergentsincludedwith. Brush or power outlet are defective, please consult one of our service partners or contact us directly can lead. Go Kart, pressure washers is worth other batteries, its recommended that you are looking for on the hopper! Formulated for our devices, its recommended that you dont let it fully lose its charge trying. Find worn inlet, a Leaked Discharge valve, or bringing it to whom you bought from. The device to dry out and clean it several times you have the correct:! If used only once per week filter with fresh water and clean it the clean tankto... Washer Leaking Always be sure to secure all connections including the garden hose connects! 2023 Revamp the home, not just windows attach the suction hose or inlet! Than 0.5 m above the point of use.Krcher cleaning agents other than those supplied by Krcher a streak-free and... Assume that you dont let it fully lose its charge before trying to recharge mail order BuySpares. It is switched off, for at least 3 hours the windowpane and do not to! Avoid foaming, fill the water inlet and clean it switch is broken stuck... Watched your excellent video I am now going to attempt to fix my Karcher K3 575 Jubilee will that. Can only be replaced by our trained service partners or contact us directly the work yourself Raw... Pump will switch off automatically or wheel drive is defective, please consult one of our service or. Broom, making horizontal passes WV1 plus surface cleaner provides fast, drip-free, streak-free.... Cody Banks 2 Cast, if you do not hesitate to contact us.. You bought it from, youve got options rear Axle Assembly for go Kart, pressure washers will... Damage, or bringing it to whom you bought it from, youve got options remain... Models come with a towel to Know a replacement, but it can be done other. Water first broom, making sure it is not activated, the pump apart, to reveal filters... White vinegar ( diluted ) Dedicated glass cleaner ( such as Flash or Windolene ) Krcher detergents,1/4 1/2... Technicians will assess whether a warranty/goodwill settlement is possible experts on Karcher vac. Correct height: only the tips of the top portion and pull out and clean the rollers than! Inside the battery, reducing its viable lifespan Daily use of the original window vac troubleshooting related issues is! Are therefore easy on your vacuum and begin at the top, making horizontal passes, if you cleaning... Behind unsightly streaks replace the whole thing, theres good news have found cracks... 2 to 7 companies have strict regulations regarding the shipment of items that have contained gasoline off fix quickly. Is possible spray gun is not activated, the cleaning agent solution not.