Leaking Steam wand

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rootbrooklyn
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Leaking Steam wand

Post by rootbrooklyn » Fri May 01, 2015 12:16 pm

My steam wand has a steady drip that started a couple of days ago. It does not appear to be located at the rubber washer inside the head of the wand. And the leak is worse in the few minutes after use. Eventually it does seem to stop if not used for 20 minutes or so. Any ideas what's going on?

Thanks!

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chas
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Re: Leaking Steam wand

Post by chas » Fri May 01, 2015 2:36 pm

Check out the diagram below. The most likely parts causing you leakage are going to be the ones labeled 219, 221, or 223.

s1v2/images/SteamArmAssy.pdf
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Re: Leaking Steam wand

Post by thebearmaster » Tue Mar 19, 2019 12:04 pm

I came across this thread while searching for any hints on a new problem with the steam wand on my Vivaldi 2 (purchased 2007). The steam wand is leaking steam, even when the steam knob is fully closed. As it does, it makes a hissing sound, heats up the wand, and eventually causes a small puddle of water. So I'm forced to turn the the boiler off after each cappuccino.

Is this the same issue as the one from the OP? If so, how could I best narrow down which of the 3 parts you kindly mentioned is the cause of the issue?

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chas
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Re: Leaking Steam wand

Post by chas » Tue Mar 19, 2019 12:13 pm

Yup. Same problem, same likely washers.
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Re: Leaking Steam wand

Post by thebearmaster » Wed Mar 20, 2019 6:44 am

Chas, thanks for the confirmation.

Is there a way to determine which of the 3 washers need replacing, or should I replace all 3?

Are there any disassembly instructions?

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chas
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Re: Leaking Steam wand

Post by chas » Wed Mar 20, 2019 9:01 am

I would buy and replace all the washers. Even if just one of the washers is currently damaged and causing the leak some of the others may have gotten brittle with age and may break when you take the valve apart.

There was a great post with photos on how to disassemble that valve which was posted 10 years ago. Unfortunately, the gentlemen linked the photos from his own website rather than uploading them to the forum and now that site is gone!

Here are a few key items.
1) Use a very small slotted screwdriver or something similar to pry the round disk in the center of the steam knob off. Then you should see the nut that needs to be removed so that you can pull off the knob. (My recollection is hazy. This could be a large screw rather than a nut.) The exploded diagram also shows a snap ring holding together two pieces of the knob. However, it is my recollection that you do not need to disassemble those two parts.
2) Remove the lower front panel via the 2 screws facing front on that panel
3) Remove the screws along the upper edge of the panel that the steam valve stem goes through.
4) Pull the panel out so that it clears the valve stem. You can either drop that panel down out of the way if there is enough slack in the two ribbon cable or else disconnect both cables and move that panel completely out of your work area.
5) At this point you are on your own to find the correct wrenches to complete the valve disassembly/washer replacement/reassembly. Be sure you have the exploded diagram page for this assembly on hand from the parts manual (bottom of page 3) .V2 Parts Manual
BTW: You should probably review this drawing before you even perform step one since you can clearly see from the exploded diagram what that round disk looks like which will probably help you pry it off.

Even though the previously noted washers are the ones most likely to be causing this leak, you will see from the diagram that there are actually 5 washers in the entire assembly. To be completely safe, it wouldn't hurt to buy a whole set. If you have access to a good hardware store with an excellent assortment of round washers you can probably remove the ones from the valve, take them with you, and pick them all up pretty cheaply. If you don't want to count on this being the case, call Chris Coffee Service, tell them which machine you have, and ask them to send you a complete set of replacement washers.
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Re: Leaking Steam wand

Post by chas » Tue Mar 26, 2019 5:02 pm

Any progress?
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Re: Leaking Steam wand

Post by thebearmaster » Wed May 15, 2019 5:36 am

Hi Chas, sorry for the late reply.

I've been trying to find specs for the washers you mentioned, so I can get exact replacements prior to disassembly, but didn't get far.

I'm planning to perform the disassembly this week; will keep you posted.

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