Airbrush Compressor Check / Non Return Valve Problem AS196 AS186

[@gavinwalker1115]

Thank you for this video, checked my solenoid valve like you did then checked other valve and guess what the ball bearing had corroded replaced with a 6mm bearing and now runs like new and without any leaks. £1 for 2 new ball bearings ....you have saved me alot of money

[@spidiq8]

Glad it helped you out.

[@grantyale]

Thank you! I fixed mine a couple of years ago. Here is possibly an easier way to access the valve: 1. Loosen the top nut around the hard tube 2. Loosen the nut next to the valve block slightly 3. See if the hard tube is flush with the valve shell - if yes, you can turn the valve block so that the valve swings up 4. Hold the top half of the valve shell and loosen the bottom half 5. There you have access to the rubber valve for cleaning or replacement. Older batches had rubber valves that could lose elasticity quickly over time; newer valves should be silicone and more durable. I tried to link a picture but KZbin kept deleting my comment because of it...

[@pav3d1]

Thank you both i have fixed my compressor! :)

[@cheekybesom]

Thank you so much. I am a cak-handed non-mechanic and I got it to work. Though my non-return valve didn't even have the sponges!!!!.... You just saved me $170 on a new compressor. Happy Holidays to you and yours :)

[@spidiq8]

That's great to hear and glad I could help. I hope you and your family have a great festive season.

[@brandonwong9634]

Thank you for the video. My AS196 was heating up quite badly and I didn’t know what was the problem until I saw your video. The pressure release valve was spewing out more about 5 seconds of air after the compressor stopped. Following your video I open the no return valve which has a corroded ball bearing, cleaned it up and put everything back together. Now the compressor runs warm but not incredibly hot as before. You are a genius!

[@spidiq8]

Thank you for the feedback, glad you got yours sorted. Much as I like idea of being a genius I can't claim that though. 😆

[@mcscalemodeling4984]

Thank you for your video, this helped me fix my AS-196A as well. I think I had several issues. One of the red valve plates had a corrosion in the metal which kept the little rubber valve open. Then I also had a wet non-return valve, I didn't have a sponge in it, so I cut myself a little piece which for now did the trick. Also my solonoid valve wasn't screwed in thight, solved that. After checking and tightening all the nuts. My compressor now shuts off after reaching 4 bar instead of blowing off all pressure. Plus my compressor also doesn't blow off anymore when you turn it off. Next to that I made a little field mod, I added a little piece of string to the blow-off valve so I can release the air in the tank after I'm done.

[@spidiq8]

Great stuff. Glad it helped.

[@dernordmann57]

The check valve seems to be a general issue with most of the chinese airbrush compressors with more than one Piston (solenoid valve) . The "sponge-trick" was a good advice! I fixed my AS48a this way. Without the sponge it only was a question of time to run again into this problem. Now it seems that it does the trick. Thanks

[@diyhometheaterguy]

This is awesome! Same problem with mine, but I had a little rubber gasket that had come out of the valve. Reseated it and good to go again. Thanks for the help!

[@spidiq8]

Glad it helped you.

[@ThibautVDP]

watching this video it does make sense the solenoid is at the top of the piston so that the motor won't have to start from zero momentum vs high pressure to start pumping again

[@_.Lumi._]

Thanks! Cleaning the check valve solved my problem as well!

[@thebeastbrothers]

i followed your video and also empty all the rust looking liquid that was on the tank and it works fine now! thanks for making it!!!

[@spidiq8]

Glad it helped.

[@tattoos1988]

Hi I just came across your video and I thank you very much my compressor now works fantastically due to your video I replace the chick valve with a brass one with a ball bearing and it works wonderfully I'm now subscribed to your channel think you

[@wobblygoblin1]

Really helpful and informative. Used this video to get my compressor running as good as new. Many thanks!

[@spidiq8]

Thank you, glad it helped you.

[@lukaszbroda1094]

You just helped me fix my as28 compressor, thank you

[@oxivanisher]

Thank you very much, this just helped me fix my AS196.

[@3dbot959]

Thanks for saving my time. You 'r excellent! I could fix the issue

[@omendacat]

Thank you so much. Now my compressor running like new.

[@spidiq8]

Glad to help

[@chadwharton9207]

Thanks this saved me a lot of effort.

[@LeandraChristine]

New compressor (Fengda FD-189), exactly the same problem. Clearing the "mushroom ring" as they call the rubber valve in their manual worked. Also it leaked (little) air before and that stopped now too. This design is a real weakness of these compressors.

[@spidiq8]

That's interesting. I've not come across this kind of problem on a shipped new one. It's usually caused by blowback of particulates that aren't filtered out adequately or from corrosion after condensation build up in the tank etc. They should really be a ball/spring valve made of something like brass but many are made of steel and corrode themselves. Good to know the manual covers it though.

[@inzane1260]

One can always modify and install a ball/spring valve. The only issue is obtaining quality parts. These compressors are based on a design that has been in service for decades. Manufacturers no longer sell parts in the open market. I heard there is a supplier in the UK that carries replacement components. The surface where the rubber valve meets the plate should be smooth for a excellent seal. If you notice the paint they sprayed on is bumpy. This is one of the reasons out of the box these compressors are back filling into the cylinder and not holding air in the line.

[@a.gerard3201]

Thank you for your very interesting video to be able to troubleshoot your compressor. In your video you say at the end that you are going to look for a better quality valve to replace. Please, if you have found the valve, you can say where you have found it. Thanks Greetings from Spain

[@spidiq8]

Thanks for the comment and I'm glad you enjoyed it. Sadly I didn't find an alternative. I did see one ball bearing and spring unit but it was from Germany and almost the price of the compressor at fifty something pounds UK. The old one after cleaning has been working perfectly ever since.

[@a.gerard3201]

@@spidiq8 Thank you very much for your answer, tomorrow I will try a repair, and I will tell you the result. Today I found a company on the Internet that has many spare parts for AS196.

[@spidiq8]

@@a.gerard3201 please do update and also feel free to share the company.

[@BergerFett]

awesome. I am hoping there is a replacement for this part, im about to fix mine for the second time.

[@spidiq8]

There is, the only one I could find at the time however was from Germany and half the price of a new compressor.

[@RubberSmuggins]

When you took out the first piece of sponge there was a burst of sponge dust. I suspect the sponge could do with changing as it could be breaking down with age.

[@spidiq8]

Could be! It's been behaving so far since this but an easy replacement should the need arise.

[@chrisglover8616]

You sir are a genius!

[@spidiq8]

Haha, thank you. I'm hardly that but it's kind of you. Hope it helped.

[@chrisglover8616]

@@spidiq8 it did indeed.

[@carsonpower5948]

well ill be damned, this was what was wrong with my compressor! great vid!

[@spidiq8]

Glad it helped.

[@mitomunoz]

Muchísimas gracias, tenía el mismo problema y me ayudaste a resolverlo.

[@ArteUltra91]

Thank you so much 👍

[@jak7824]

hi, i have one of these and am wondering about the pipe in the middle, going top to tank. the o rings, i think thats what they are, what size and how many go in there? i am not tech savvy and the instructions have confused me. i really hope you can help me

[@spidiq8]

I'm not sure unfortunately, I only addressed the check valve, i'd imagine only one per connector but you'd have to remove and measure for the size.

[@bjrrr339]

This Video helped me out a lot thx. Only problem now is my Non Return valve with the sponge in it is letting out a little bit of air. Guess ill have too seal it better somehow

[@spidiq8]

Bj Rrr Glad it helped, where's the leak, is it through the valve or the threads?

[@bjrrr339]

spidiq8 hey,. It's throughout the threads.

[@spidiq8]

Bj Rrr Some PTFE tape should resolve that

[@bjrrr339]

spidiq8 alright I'll try that out. Thanks for the Tipps.

[@spidiq8]

Bj Rrr Thanks, let me know how it goes.

[@Emtbtoday]

Mine just lost pressure from the screw in pst valve but kicks back in when tap it with the screwdriver so thinking it's sticky or clogged? There's no sound from compressor till I hit that valve then it fills the tank but won't then refill till it's hit again! It's not been used much and only 6 months old I striped it down today saw nothing so I don't know? But when I tapped it like I used to do with my mass air flow sensors on my cars to check of sticky it kicked the compressor in and filled up but it's a single tank unit it's a like screw valve into the heat sink unit!

[@spidiq8]

That certainly sounds like a sticky valve, I don't know if they can be disassembled but you should be able to find replacements on ebay and such.

[@Jeff-cv4qn]

Nice job Mike

[@spidiq8]

Jeff0000 Thanks, hope it holds for now, looking for a better replacement part.

[@JJ-cf7nb]

Great video! Thanks for posting this. I had the same problem with an identical compressor purchased from a a Chinese seller on Ebay. Hope you got that T34 done after all :)

[@spidiq8]

Thanks. I did yes. Glad the video was helpful.

[@ensenaraaprender]

Thanks so much for your video! I run a compressor for an antivibration table in my work lab. It was venting for ~30 secs after it got to 4 bar then venting completely after 20-30 minutes (I don't know if this is a safety measure?). The bearing in my return valve (I actually had one!) was a little rusty and uneven. I scraped off what I could and it seems to be working now!

[@spidiq8]

Great news, glad it helped. If it's a ball bearing and spring type you can replace either or both with a stainless one the same size. You need to make sure the spring is not much weaker or stronger though.

[@ensenaraaprender]

@@spidiq8 Good to know, thanks

[@PeterAgostiniJdcap26]

Great 👍 video see other videos like this ..

[@romulusmare]

I have an AS189 with the same problem, leaking air. In the end have you found different valve? I am thinking to opening both the solenoid and release valve and check them for corrosion.

[@spidiq8]

I did find one for sale on eBay but ended up not needing it, the original one is still working. Try cleaning yours first.

[@romulusmare]

@@spidiq8 thank you. opened it, and cleaned it all as best as I could, then re-assembled. The metal pipe connecting the tank, has two screws over some rubber o-rings, which were pretty old and one broke at each end. So I needed to replace them. Quite fiddly to put it back together. It works, and I can say the leak is much much diminished, cannot hear it, but if I keep finger over solenoid valve evacuation, in 3-4 seconds you can hear it as pressure builds under the finger.

[@spidiq8]

@@romulusmare If there's a little pressure there you still still have a slight leak back past the valve so removal and a thorough clean would be a good idea but glad you improved it so far.

[@gmproxy]

Hi, I have a question. How would you fix the pressure regulator knob? Mine went flying off and I have no idea about how to fix it.

[@spidiq8]

Without know exactly what happened I couldn't say. It's possible that something has broken as I'm sure they shouldn't come off easily.

[@mbloom89]

Would you happen to know what it means if the compressor isn't shutting off when it hits the pressure you have set it at? My motor continues to run but the pressure gauge isn't going above the pressure I set it to. Any thoughts?

[@spidiq8]

Do you have a 2 way switch? If so, position 2 is continuous, if not, then either air is escaping or it's not registering the pressure, if the latter though, it should eventually struggle to pump before the tank pressure is exceeded as these compressor pumps are relatively low powered.

[@marciodossantos7885]

Hi, greatings from Brazil. Could you please confirm a doubt: The counter-weigh pieces (#18) are assembled aligned (eg.: both at 6 o´clock) or in oposition (eg.: one at 6 o´clock and the other at 12 o´clock) ?

[@spidiq8]

I'm sorry I don't fully understand which pieces you're referring to, could you explain in a bit more detail or point me to a schematic so that I can see? Thanks

[@marciodossantos7885]

@@spidiq8 thank you for your reply. Please check the scratch on this link: photos.google.com/u/1/photo/AF1QipNpGw6NhhdMy2RaSed_7aQFxwntoZQrV5XwbOfi I got another compressor and i am planning to join two single head in a twin one, but using the two stators in tandem: photos.google.com/u/1/photo/AF1QipNG17-a9QQbM6d8VU2yvhufT4wKEA-oGHW-bbLQ so, i need to discover the counter-weight position...

[@karstenkozaksrensen99]

nice video did you find that Ball check valve for this ??

[@spidiq8]

I did but only found one on ebay which was prohibitively expensive and the stock setup has continued to work well so it's still in this configuration.

[@karstenkozaksrensen99]

@@spidiq8 jeg just bought the Fenga version of this compressor , basically the same compressor but with difirent name , it have as196 in the name tag. www.fengda-europe.com/Webwinkel-Product-202775153/Airbrush-mini-compressor-with-air-reservoir-Fengda-AS-196.html

[@user-wj4xw6pb8h]

Is this a common problem with this type of compressor? I'm in two minds as to which one to purchase - either cheap(er) and cheerful (i.e. similar to this one) or go all out on an Iwata one... but the £300+ for an Iwata one is a BIG investment!

[@spidiq8]

I don't think so, I've only heard of one other similar situation and that was a ball and spring which had corroded from leaving the compressor on and the tank full without draining regularly.

[@user-wj4xw6pb8h]

spidiq8 thanks. Do you have a link to one of these and/or the 186? I’m struggling to find UK based sellers on Amazon. Would prefer to use a retailer I know I could communicate with should I need to.

[@spidiq8]

@@user-wj4xw6pb8h unfortunately not. I got my original one from eBay years ago. I do recommend air-craft.net though. Based in Fort William and has a great range and also good help on the phone.

[@Obasteira]

hey, thanks for the video! I have a question regarding the heat generation of the two pistons. One of mine pistons (or more the cooler) getting hotter than the other one. is that normal? thanks!!

[@spidiq8]

I've honestly not felt mine to check but it's possible one operates mainly and the second acts as a top up but if both operate at the same time I'd expect the temperature to be similar unless one is in an area where it gets more cooling air than the other?

[@spidiq8]

Update, I tried my compressor earlier and can verify that the temperature of both cylinders was very close, while one may have been fractionally hotter one wasn't noticeably hotter than the other.

[@Obasteira]

Thanks vor Info! I will try to measure the temperature to check the difference.

[@lgutibo]

Hi, thanks for your video. I watched it and I think I have the same problem. But, you said you wanted to change the valve. Have you done it?. In case you did, where did you buy that piece?. I would like to replace mine with a better one.

[@spidiq8]

Glad it's useful to you, as it turned out. After cleaning and reassembling it's been operating OK so I haven't replaced the part with a spring loaded bearing one, however, I did find one on eBay but it was expensive due to shipping from Germany and it was the only one I could find at the time, I recommend giving it a good clean and reassemble first.

[@lgutibo]

@@spidiq8 Thanks I'll try

[@lgutibo]

@@spidiq8 I have disassembled everything as you indicated and now it works correctly but It was clean. Thank you very much for your help greetings

[@spidiq8]

@@lgutibo Glad to hear it's working now, the slightest bit in there can cause it not to seal properly so it's possible that there was a tiny rust flake or something from the tank. (The tank should be drained immediately after every session and the drain bolt left loose. I leave mine out completely).

[@JujuLand0]

Did you find a new valve? If you did, could you link it?

[@spidiq8]

I did but ultimately repaired mine and didn't need to change it. It was on ebay and unfortunately I deleted it long ago as I didn't require it. Apologies.

[@andriharlin7407]

Is this compressor really bad one and not reliable? Because when i search as196 review, only problem and trouble show up.

[@spidiq8]

Not at all, had my AS186 for several years. (No tank). Sold it in good working order after buying this one with tank second hand and this is still going. Like anything mass produced. 'Some' have problems and they're the ones you read about.

[@andriharlin7407]

I guess you're right. I just surprise when i type as196 review, only videos which have problems and trouble show up. Is this compressor good enough for painting gunpla, especially for beginner? Is the air stable? Thanks for the reply

[@spidiq8]

@@andriharlin7407 Absolutely yes. Even without the tank, for the pressure you'd use for acrylics 10 to 16psi would be steady enough.

[@papa_conejo]

Que mal que no este en español...... tengo el mismo modelo de compresor... de hecho esta nueva solo se utilizo dunas 5 veces... y tiene la misma falla ......

[@spidiq8]

Sadly I don't speak Spanish, my apologies. If I can help with a specific thing I have the power to translate (badly probably) with google though.

[@karlharris7602]

The next time just unbolt the feet and then you don't have to take the heads off to get that silver tube out

[@spidiq8]

I seem to remember there was a reason I didn't go that route but it was a while ago now and I don't recall the specifics.

[@marciodossantos7885]

Hi, greatings from Brazil. Could you please confirm a doubt: The counter-weigh pieces (#18) are assembled aligned (eg.: both at 6 o´clock) or in oposition (eg.: one at 6 o´clock and the other at 12 o´clock) ?

[@spidiq8]

Apologies I didn't get back sooner, I had a quick look to see if it would be practical to dissassemble mine to check and I really can't do that without reason as it's not that straightforward a task and I use the compressor. Sorry to say I don't know.