Audio Desk Systeme - Vinyl Cleaner – Repair of Water Pump Failure


After the water pump of my beloved Vinyl Cleaner from Audio Desk Systeme stopped working I searched the web and found that I’m not the only one with this problem. But nowhere did I find a blog or post that would describe a repair procedure – other than to mail the machine back to Germany for an expensive repair.

If your machine is still under warranty you should of course send it back for warranty repair. But if your machine is out of warranty (like mine) and your only option is to spend lots of money to get it fixed, you might want to consider repairing it yourself.

The way the vinyl cleaner is designed does not allow any maintenance or replacement of any component located inside the machine without destroying something. The whole machine is glued together! Something I have not seen before to this extent – especially not on a high dollar item like this. Only the components in the upper compartment where the white cleaning rollers are located can be accessed thru the opening in the top cover.

To get started you need to separate the bottom PVC plate from the bottom of the tank. Both plates are glued together. I used a flat pry-bar to carefully separate the bottom plate without breaking it. Shining a flash light thru the water sight glass you can see the blue water pump thru the drain hole of the tank.

To get to the water pump you need to remove the bottom of the tank (or parts of it) which is glued to the recessed side walls.

Use a permanent marker to draw straight lines on the tank bottom – 5 mm inbound from the side walls. The PVC side walls are 5 mm thick. Try to cut slightly inside that line to not cut into the recessed side walls. I used a Dremel with a cut-off wheel.

Once the bottom of the tank is removed you have access to the water pump and all other internal components. To disconnect the pump wires from the main board you need to remove the front panel with on/off switch. Follow the pump cable from the tank and disconnect both wires from the terminal.

In my case it turned out that the pump actually did not fail - it was simply seized up. Once I rotated the little impeller by hand and hooked it up to the 24 V DC power supply in the sink it started to pump fine again.

In case you find your pump to be dead and need a replacement look for “Barwig Tauchpumpe Typ 3 24 V DC”. Price is around 18 EUR (appr. 20 USD) at amazon.de or conrad.com. Unfortunately I was not able to find a supplier who would ship to the U.S.. You may need to be creative – or plan your next vacation in Germany ...

If you use aquarium grade silicone adhesive instead of strong PVC adhesive to put it all together you will be able to undo everything easier in case you need to access the inside of the machine again. 

Feel free to email me if you have questions or need pictures.

Decibell

decibell
I'll say it again - the OP makes me glad I bought a Loricraft PRC-4 over 12 years ago.  So far (knock on wood) nary a problem, and it does a great cleaning job.

That said, over the past few years there have been a number of reports on this forum of problems with the Audio Desk vinyl cleaning machine.  If I were to go the ultrasonic route, I would choose DIY - - many choices available at a fraction of the cost of Audio Desk.
@decibell Bravo! I admire the informed courage of anyone who picks up a dremel and vivisects a sealed unit, which to the average audiophile is a sacrosanct immaculate conception.
I’ll say it again - the OP makes me glad I bought a Loricraft PRC-4 over 12 years ago. So far (knock on wood) nary a problem, and it does a great cleaning job ....

I have had my Loricraft since the eighties..........zero problems and cleans extremely well and without the unwanted static charge the others create.........
( and so quiet it can be done while others are sleeping!......on the same street ,in the same house..... in the same room....)

Seriously though , this is one of the obvious drawbacks I saw with the consumer bought ultra sonic types is accessibility and ease for the user to repair if needed. They seem to clean well enough , but durability and the length of in service with zero issues the Loricraft has been my experience owning for decades, personally, would be hard for me to see a change worthwhile to me. If I didn’t own a RCM , I likely still would lean toward the advantages the Loricraft offers my wants and it’s cleaning ability can’t be knocked.
Decibell- I had the same issue with a pump failure on my original ADS Vinyl cleaner which was way out of warranty.  When I contacted the importer about it (Ultra Systems), they had me send it to them for evaluation and possible repair.  As alternative to repairing it, they offered me $3000- almost what I had paid for it - for my machine as an exchange towards a brand new Vinyl Cleaner PRO which has a long list of engineering improvements including ceramic bearings on the pump and motor AND came with a new 2 year warranty as well.  Seems fair, and I was not about to cut into the machine like you did- that took guts!
jwpstayman - Lucky you! That is quite a different story from what I read about others having to pay $800 plus $100 intl. shipping for an out of warranty repair. I bought my machine in Germany 6 years ago for $1600. Today's list price in the US is $4500 plus VAT - that is insane! Too many hands between manufacturer and end-user!
After all it took me just two hours, and $10 for silicone to fix it. After 1400 cleaned records my investment is .07 cents and 5 seconds per cleaned record. And you don't see a thing from the outside since the bottom plate covers the silicone seam. It does such an amazing cleaning job while being convenient like a toaster that I will probably keep it until I'm deaf ;-)