How to repair ULKA water pump

[@whispergb]

A seven year old video that's informative, detailed and still relevant. Nicely done, sir!

[@Roinn.]

I love how your english is not perfect, but yet you manage to explain this SO much better than any engineer ive met, thank you for this

[@allesleiwand]

I wish there would be more people explaining things like you. Thanks for taking the time!

[@whyArnold]

after 3 years, i finally got my coffee machine to work. Thank you soo much

[@dougwilson8477]

Watched your video, spent £3 on replacement ball and washer for the pump, coffee machine fixed!! Thank you very much for the clear and easy to follow help!!

[@andreaskugler9218]

What's the diameter of the ball? And what material? PTFE?

[@نبضات-ظ3ه]

Thank you my dear! I’m from Saudi Arabia and I had a problem with the water pump and changed the O ring. Therefore, everything is fine now! Thank you again!

[@rsnidjik]

Thank you, Milen. This is one of the most helpful espresso-machine-related clips on KZbin. Very clear presentation, lots of useful information.

[@ianstutt8788]

Many thanks for your pump repair video's. My Miele CVA 620 has not been used for a few years and displayed the usual 'expel air' and a very noisy pump. Managed to extract the pump (quite difficult!) stripped down according to the video and I'm now enjoying my first cup of coffee for a long time. Great of you to share your knolwedge Milen.

[@johnmcclintock3276]

Thank you for this very informative video. I repaired my pump for £2.07 as opposed to having to purchase a complete pump. My Magnifica is now working quietly and properly. I am both delighted and relieved with the result. 👍😊

[@pompiliuservi1959]

Where find the ball? Thanks

[@user-ks2wz7bg4p]

Ebay

[@FillUps007]

Your repair demonstration is excellent and a money saver. Various versions of the Ulka pumps are used in medical equipment, to pump water or chemicals. After viewing your video, we have repaired several pumps, which we would have normally thrown out. We found problems with the “stuck ball” and replaced the smaller o-ring. Now the once malfunctioning pumps are all working properly. Thank you.

[@mikepurcell01]

Thanks! The water pump on my carpet cleaner wasn't working. Although the internal mechanism was slightly different from what you show, the information you presented was spot on. The back flow preventer was stuck & easily fixable. You saved me $60!

[@nicolacasali8304]

My Delonghi Magnifica is working again simply after taking the pump apart and putting it back together. You gave me the confidence to do it. I don't know exactly what the problem was, but it got it going. Thanks!

[@tomaszkusmierczyk2236]

Thanks to your video showing the inside, I repaired the pump in my Nivona Romatica coffee machine. I had put a dodgy water filter in the machine. Water flow washed out the filter's insides and through the pipes, the water flow controller to the pump itself. Thank you for sharing this.

[@manuelmatos7199]

Hello Milen, i think many repair shop don't like you explain all this. Tank you, i have repair my selonoid valve with your video...

[@briandeb01]

Excellent! I have a 2005 Starbucks Barista which quit pumping after sitting for several months. I had tried other ways to try to get the pump to flow but none worked. Thanks for showing how to disassemble the pump. Once I did that and reassembled it worked. Thanks again

[@MichailTsatsanis]

Thank you so much, my milk steamer has a small 16W pump (Quickmill evolution 70 machine), and steam stopped coming out. I took the pump apart and put it back together, and now I have steam! You saved me a lot of hassle as this part was out of stock everywhere...

[@austinado16]

Excellent video! Thank you for making it. I just purchased an espresso machine that had been in storage for years. The pump would not prime. I used a plastic syringe full of water, to force water through those check valves, by removing the filter from the water supply hose, and putting the syringe onto the hose. (I got the plastic syringe from a local drug store by asking them if they had syringes for giving pets medicine. This kind of syringe has no needle.) After the pump was force primed, it worked, but the flow was very low. I removed the pump, and took it apart as you show here. I found that small 9mm x 5mm x 2mm o-ring was hard as a rock. I replaced it with one from the plumbing department in the local hardware store, and now the pump delivers a lot of water! Saved myself $45.

[@TheAdrianBercea]

Thank you very much, you just saved my old DolceGusto coffee machine, the little mushroom ball was stuck in my case after a long period of not using the machine at all. Thanks again very very much

[@julsh1843]

Waoou, thanks so much for your Video. The local repair shop couldn't even find where the problem was coming from. You are a star to take the time to post such detailed video. Well done

[@GavinGrant-f9z]

Thanks, brilliant video, lots of useful information repaired my machine for free thank again

[@fredericksantini2796]

Thank you for the great explanation - I was able to bring my Saeco Intelia back to life! Wishing you all the best!

[@reneschuller3489]

Thank you! You saved me the replacement cost of a pump. Back flow valve (mushroom valve) was stuck. Awesome Dude!

[@johanneslinde4437]

What a great video. Thanks for taking your time explaining how it works, I just fixed my Philips Saeco Intelia machine thanks to you!! Nothing was broken, just the small rubber valve was stuck. :)

[@moonice1194]

Thanks a lot man! One suggestion is that to write the common coffee machine types that uses the same pumps. I had to open it then figure out where is the pump and finally get the model

[@Oliver-fz1zk]

Thanks. You just saved me £200 buying a new Dualit coffee machine. The machine was making a loud noise and no water was coming through. Such a silly little spring stopping the whole machine working. A 5p spring stopping a £200 machine...

[@elwoodzo]

Amazing! Thank you. I watched it all despite my pump being the disposable type shown at the beginning. Very generous ❤

[@pavelgpavlov]

Very nice video. Thank you. I disassembled and put back together my pump and now is working perfectly :)

[@AGG69]

Thanks a lot! You just saved me about $50 for a new pump. Successfully repaired pump on my espresso machine.

[@DarrylStrutton]

Excellent video. After my 15-month-old Miele DGC 6765 steam oven gave an F10 error, Reddit or Houzz sent me to this video. Inside the Miele's very similar vibratory pump, model ARS MPP2.02.041.3/ST/S 208-240V, I found a broken .25"x.75" spring which I was able to replace with a stainless steel spring from amazon in a 400pc variety pack for $16. Problem solved thank you. Much better and quicker than the extortionate price Miele would charge to repair my just-out-of-warranty and very-expensive-to-begin-with oven. Now I'll be ready if and when it happens again.

[@정재훈-b8f]

absolutely great video I've ever watch better than any other teacher or book

[@joelloeffler1218]

Great video, with just one note. I had a loud, non working pump in a Starbucks barista that had been sitting for a while. What I did was to elevate the water reservoir above the machine, forcing water into the pump. This allowed the pump to push with water instead of air, freeing the black rubber valve. It worked, and I did not have to take out the pump.

[@vabbbene]

Thank you, Milen. I just fixed my Gaggia Classic which uses the same motor. The little ball got stuck and the motor went super quiet. Indeed, so easy to fix. 👍

Thank you! I disassembled a Karcher SE4002 pump and I was able to get it running again.

[@zikermu]

Thank you for your video which is well explained. As soon as I have repaired my coffee machine , I will drink a coffee to your health.

[@balicrimechannel8143]

Thanks for posting this; I'm going to try to fix my coffee machine now instead of throwing it in the garbage.

[@robbynprange595]

Perfect video. Helped me fix (vs replace) my Ulka EAP5 pump which had a jammed mushroom rubber valve.

[@michelgrenier1568]

I appreciate your time. I repair autoclave and my cofee machine use same pump but I never care that the plastic ball shrink in size by time, thank you again.

[@coralieching3058]

I almost threw my espresso machine out! Tore it apart wondering how to check the pump out! Thank you so much for this video which was very helpful.

[@diegomartinez7412]

Your explanation was perfect!! So clear and useful. Thank you so much from Argentina

[@richgantner3632]

Thank you for the video. I'm enjoying a nice espresso because of your informative video!!!

[@sszzt]

Thank you very much for taking the time to make this video! I only wish I had seen it earlier as have I already ordered a new motor. Will try to repair the old one anyway and have a spare! hehe

[@eddyderoo]

I wish all video's were off the same quality. Very educational. Congratulations man . I subscribed to your channel

[@TheBlackbelair]

Thanks for this detailed information! I have an '80's vintage Gaggia Coffee machine that is not pumping although the pump makes a loud noise when it is powered up. I will use this video to trouble-shoot the pump.

[@PanZehir1881]

you are the man ! your all videos are very hulpfully for me,, greetings from Turkey

[@maurelius6463]

Thank you Milen! I enjoyed learning about these pumps!

[@HadrienDorfman]

Thanks a lot for this, complete, instructive and clever thought 😌👌 and you have the same voice as me, without the french accent😂😂.. that was really funny to hear 😂🔥👌

[@artsua6143]

Super efective video, took mine' apart, and sure enough, the "mashrrom" valve was stuck. It works great now!!! Thanks a MILLION Buddy!!!

[@lkvanz]

Thank you for this very informative video. After watching it, I managed to resuscitate my 20 year old Ulka pump.

[@ElectronDust]

Thanks so much for sharing! Great to learn about the ULKA water pump. Very informative!

[@mikeo3454]

Thank you!! Yes, between the total dismount of my De Longhi EC680R and the whole job itself (2 hours), I now have a working coffee machine which was going straight to the bin! All about a stupid spring and a 2mm ball stuck, who would ever figure it out!! Thank you 🙌💪👏👍

[@DoubleMonoLR]

Thanks for making this video, after disassembling and reassembling the water pump, I got an old carpet cleaner going again :)

[@afakethrum]

Thank you so much. The valve was stuck in my case. If it wasn't for your video, I'd consider replacing the pump.

[@SkyBlueGuy1]

Great video! I opened mine up today and the spring was indeed broken (as in your demo). Any idea what type of spring I would need to replace it?

[@mrdyercauston]

You're a true hero- 👍 you're video is easy to follow and well- explained.

[@CplWonk]

Very useful video, helped me fix my DeLonghi. Appreciated!

[@teoandrei3677]

Your video helped me to unblock my pump, thanks!

[@stinegehl7059]

Thanks! You just saved me a HUGE repair bill from the supplier !

[@oseo943]

Thank you mate! you saved my ULKA pump from a Lavazza EP951 ! back flow valve stuck! i noticed that my pump hasn't the little ball, maybe a different model!

[@edtrbuza1107]

Milen, thank you for all of these videos. I have a Gaggia Synchrony. Sometimes it brews, sometimes it doesn't. I always get steam or water from the steam wand. Sometimes I go to brew a cup of coffee, it grinds the coffee, pump comes on for a second or two, then you only hear a quiet hum for about 10 seconds then it quits and the red light starts flashing. Think it's my pump?

[@m.thorner7683]

thank you very much for your great explanation. I found two little black plastic pieces near both little balls. Removing them solved the problem.

[@TheMrJBBG]

Благодаря Стефане, утре ще диагностицирам помпата!

[@david029014]

Great video, working on my breville barista with using this. Keep up the great work!

[@ahmetsenolozbek1680]

Perfect. You answered all my questions at the very beginning. I have to throw away and buy new one :))Very informative and helpful, Thank you.

[@sebastienrougier4999]

Very useful, I repair my pump! Thanks a lot!

[@toto78978]

It was very helpful,I fixed my ULKA pump.Thank you so much!

[@sm25071982]

Thanks, one less water pump in the dumpster. I was just going to buy a new one as I did not think that could be repaired.

[@resilenceandawareness]

Very well done. Not easy for the english but you`ve been so friendly and helpful. Now i`ll try to check and repair in the case the water pump from De Longhi ec200 cdb. The coffee machine is been stopped for more than 2 years, so the water now isn`t going out. I think, probably are the orings or tha same that you show up. Thanks again, all the best*****

[@brianreyes1616]

Thank you sooooo much! I fixed my espresso machine using your video!

[@osmopetteri]

Thanks! Got my Kärcher textile washer back working because of this vid!

[@headtungsram6920]

Nice video! Thank's for sharing all this informations. It's very helpful. I have Lavazza EP Mini coffee machine, but there is an EP4GW in it which does not have this little ball valve, there is a plastic piece inserted to the hole. It's making some strange noise during operation and in the same time the coffee flow drops. Do you have any idea? Can the rubber sealing cause this problem? It's a pretty new machine, only 9 months old.

[@juangomez-to5nx]

Hello, thanks for you video. I have a coffee maker with low pressure. Firstly I clean all lines with (vinagre), secondly clear air with not improve pressure. And finally I checked the pump. It was working but I also change plastic ball by another (metallic bike ball). The pump, the oring was ok. Then try again to prepare coffee and not got to improve the pressure. If you have any idea? Thanks a lot. Kind regards

[@poly_hexamethyl]

Thank you for the very useful video. You helped me to repair my pump!

[@OutsideAgent]

Thank you! Very helpful vid, helped me a lot in deteminating the issue (low pressure) with my Isomac Giada. Pump in the machine was about 12 years old..

[@juangomez-to5nx]

Raimz Gamez, hello. Did you find a solution about your low pressure? I’ve the same problem. Firstly I cleaned all lines with (vinagre), secondly clear and air blockage with not improve pressure. And finally I checked the pump. It was working but I also change plastic ball by another (metallic bike ball). The pump, the oring was ok. Then try again to prepare coffee and not got to improve the pressure. If you have any idea? Thanks a lot. Kind regards

[@GBaj79]

Hi Juan, I know it been a long time ago, but I'm facing problems with pressure with my VBM, the pressure from the water pump increase very slowly. I was thinking also to try the clean and change the plastic ball as you did, but it seems not gonna solve this. I was curious to know if you fix this issue with pressure yet😊

[@GuitarCraftMiner]

Thank you so much. This helped me find a stuck rubber valve.

[@jurgenstrube4916]

Guten Abend, auf deutsch sagen wir Handwerker: " der hat wirklich Ahnung" .....Sie,Du, hast mir echt weitergeholfen.

[@akquicksilver]

Where can I get parts for the bronze discharge of the EX5. I have two pumps that I can't remove the white plastic retainer from. I have to destroy the retainer to get it out. Great video with excellent information. Thank you!@

Thank you man, i fixed my carpet washer machine's by that video.

[@sabinavoogd]

Thank you for explaining this. My dolce gusto is working perfectly because off this video. Thank you so much 😁

[@Mohammed-dj2ol]

Perfect and clear explanation I'm suspecting that my pump is the issue and from the search I'm sure it is a minor issue. BTW for the boiler when could I say that my boiler needs replacement? Is it when there is a visible leak?

[@YorKots]

Really useful and detailed! Big thanx from Greece!

[@claudiodelorenzi583]

Thank you for your explanation! Very nice video!

[@jimcampbell5112]

Great video, it explained everything I wanted to know. Many thanks

[@rodrigolocateli5029]

Thanks, Milen! Your video really helped me out to identify a defective pump.

[@akeong3485]

So very informative, thank you Sir! You are awesome!

[@alutious]

I get water but only for a bit and it stops. if i don't have coffee pushed into the portafilter all the water comes out no problem. So it's definitely water pressure. So i expect it's either the internal spring, internal ball or most probably the small O-ring. I will also check the mushroom like valve with the smaller spring first. Thank you. I tried descaling twice and it didn't fix the problem. I wonder where I can order parts for this. It is a Delongi Dedica that i have used an incredible amount over a 5+ year period.

[@samng1588]

Thank you for your time to explain us this. I also want to ask you what is the correct size for the ball?

[@milenstoitsev6676]

4mm

[@wolliholli]

Thank you very much for your detailed explanation. Now my pump is working again :-)

[@paullaughton6016]

This is an excellent video! Thanks for sharing it.

[@pbferrari64]

Thanks Milen you saved my weekend.

[@alopandur]

Hey Milen, THANKS man for detailed description and instructions. I am bit confused, where did the second ball (the smaller one) come from, I disassembled mine and do not have the second ball.. Know this video is old, but you might get this comment... Blagodarim...

[@tg2451]

Great video, very helpful. Do you know if ULKA makes a pump that is compatible with Jura machines. So for example, similar to the Sysko HP4. 120v. Thanks!

[@K_N_44]

For the EC685 do you think i could replace the cema-ulka with regular ulka? Do they have any huge difference other than original sticker in the box? Also what symptoms did you have when pump was faulty? Dripping water from group head and low pressure in steam and brew?

[@scandilock]

Thank you my machine is working now Great job Thanks

[@Hendrik6]

Thank you so much for this video! With your help I could fix my water pump, and thus also fix my Espresso machine :) You are awesome!

[@whateveritwasitis]

so, the bigger one is 240 volts not 120, but both 40 watts. so you can swap them out if you want more power ? replace the smaller with the larger as long as hoses line up?

[@kdigitalproductionservices6581]

Super Super Helpful and Useful. Thanks a lot man!

[@ttttt7026]

Excellent video. However, it seems impossible to actually find the individual replacement parts. I guess your best bet is to try to find a used pump and salvage parts? The small ball seems to be the issue on my end, but that's likely worn on most used pumps, therefore I'll have to buy new anyway.

[@milenstoitsev6676]

Spare parts can be found on eBay

[@kensandars7914]

Thank you for this great video. My five year old EP5 has shrunken ball syndrome - the poor little thing was out of shape as well as lacking in diameter, but I don't think that was the killer problem. I used a multimeter to measure the resistance of the coil and found it was open circuit. Is that a valid technique to assess the coil?

[@d1bobbyg]

I am wondering just the same, looks like it's open circuit!

[@kensandars7914]

@@d1bobbyg I think there is a DC blocking capacitor so it appears open circuit. So I don't think my suggestion is useful. I replaced the pump and found the triac board was the culprit. It worked out well and I can recondition the old pump when I get the parts.

[@d1bobbyg]

@@kensandars7914 Thanks mate for your reply. I was meant to actually say that to you myself. The diode has that effect on your reading if you out the black testing wire on the that side. i was more wondering if the diode might be blown because for some strange reason it was giving me an "open" result no matter which way I test it until all at a sudden it decide to work. The strange world of electronics. Might try the triac next after I check the thermal fuses. It does seem to be the culprit as you found out quite often. Kind regards and an early Merry Christmas mate. Enjoy the coffee :-)

[@izzzzzz6]

I got hopeful when i saw this video but i still can't get it to work. All mechanics look fine, i get a little bit of screwdriver vibration too but not sure if it's enough. Is the diode located in the plastic housing with the coil or is it found on the control board? My pump makes a tiny sound, not really loud enough, if i unscrew the plastic part a little the noise becomes louder but still no action. I was wondering if the diode was half blown? I'm getting 800 ohms in one direction and nothing passing in the other direction across the coil so i guess the diode is inside. Can i fit an external diode in series also? If i wire my other pump in reverse direction it does not work, i have two identical pumps in 2 separate machines both pumps are identical but one works. I've put the other back together now, the other one was being fired by the control board from the machine with the broken pump so the controller is ok. The only other thing i was wondering are about the metal rings and the nylon ring that sits just inside the coil and surrounds the interior mechanism. These are still and not moving freely, the nylon piece is ok but the metal rings on either side are slightly corroded. Should i need to sand those down and perhaps oil or grease them? | Bit lost here. Unless i take the other pump out and start swapping parts till i find the culprit piece. I think i'm just going to order another and keep that one for spares. I've been meaning to fix this smoke machine for several years now.

[@izzzzzz6]

Can't believe that everyone in the comments now have their pumps working and i'm still struggling. I even had it completely to bits before watching this video apart from the mushroom valve but i've now tested that from the back. The pump even worked for me once for the 1st time in years just before i had it apart so i thought this would be an easy fix. It's baffled me for now unless it's those corroded outer rings but as far as i can see they don't need to move, they just seem to strengthen the eddy currents from the coil to the piston.

[@bluetorch13]

thank you so much for making the video in English! I speak Spanish! most understand English!