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How do I fix my RESMED Humidifier?
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alexportnoy Offline

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Post: #1
How do I fix my RESMED Humidifier?
Hello, ladies & gentlemen.

Just looking for some assistance...

I recently bought a secondhand Resmed Autoset S9, which works fine.

However, I have a problem with the the H5i Stainless Steel Water Tub at the bottom (Resmed Part#: 36800). It gets filled with water & then gets inserted into the Autoset's H5i Humidifier.

It has a very tiny, microscopic hole, from water corrosion. This means it leaks water onto the base plate of the Vaporiser, which is bad.

Is it possible to block this hole, using gaffer tape or anything else? Solder?

I don't want to spend $100 AUS for a complete new water chamber just for this hole!

Can I buy JUST the stainless steel base somewhere for $20 or less?

Are there any other solutions anyone can think of?

Alex Portnoy,
PO Box# 1048,
Bondi Junction,
NSW, 1355,
AUSTRALIA
(This post was last modified: 05-20-2015 08:59 PM by alexportnoy.)
05-20-2015 08:50 PM
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me50 Offline

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Post: #2
RE: How do I fix my RESMED Humidifier?
I wouldn't use anything on the water chamber to repair a hole; if the repair doesn't hold and it ruins the humidifier, it will be a whole lot more expensive than a new water chamber. The chamber you speak of (the bottom part) is more than half of the chamber as all that is left would be the top. I have never heard of anyone selling the bottom part of the chamber only.

I would recommend looking at the suppliers at the top of the page and see what they cost in the US. Hopefully not $100 and there are some that sends to other countries.

Just my opinion.
(This post was last modified: 05-20-2015 09:22 PM by me50.)
05-20-2015 09:07 PM
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trish6hundred Offline

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Post: #3
RE: How do I fix my RESMED Humidifier?
Hi alexportnoy,
WELCOME! to the forum.!
You can get the stainless steel water chamber without buying the whole humidifier.
Hang in there for more responses to your post and much success to you with your CPAP therapy.

trish6hundred
05-20-2015 09:15 PM
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zonk Offline

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Post: #4
RE: How do I fix my RESMED Humidifier?
Hi alexportnoy

Suppliers #2 and #10 ship to Australia, prices are much lower than Australia
You'll need to order some extra items to justify the shipping cost and currency conversion, such as spare water chamber, mask, cushions, hoses, etc ... that's what I do once a year
Suppliers List: http://www.apneaboard.com/forums/Thread-CPAP-Supplier-List

Both standard (36803) and cleanable (36800) water chambers can be opened for cleaning, 36800 cost few dollars more and might last a bit longer. ResMed does not sell separate parts for the water chamber as far as I know
05-20-2015 09:30 PM
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Mark Douglas Offline

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Post: #5
RE: How do I fix my RESMED Humidifier?
Personally I would want a new tank but if you feel you must try to save it search for silver soldering stainless steel. It isn't difficult. Possibly you could find a jeweler up for giving it a go. Can't remember if you need black or white flux and absolutely cadmium free solder! of at least 65 % I say jeweler because they have the small torch tips to possibly do this without distorting it. Likely the parent metal is flawed and or it will distort and make it a wasted effort. Remember it is "stains less" steel not "lasts forever steel".

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05-20-2015 09:36 PM
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alexportnoy Offline

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Post: #6
RE: How do I fix my RESMED Humidifier?
(05-20-2015 09:15 PM)trish6hundred Wrote:  You can get the stainless steel water chamber without buying the whole humidifier.
Hang in there for more responses to your post and much success to you with your CPAP therapy.

Who sells JUST the stainless steel water chamber?

(05-20-2015 09:36 PM)Mark Douglas Wrote:  Personally I would want a new tank but if you feel you must try to save it search for silver soldering stainless steel. It isn't difficult. Possibly you could find a jeweler up for giving it a go. Can't remember if you need black or white flux and absolutely cadmium free solder! of at least 65 % I say jeweler because they have the small torch tips to possibly do this without distorting it. Likely the parent metal is flawed and or it will distort and make it a wasted effort. Remember it is "stains less" steel not "lasts forever steel".

Thanks, will take your advice and ask a Jeweler around locally first.
(This post was last modified: 05-20-2015 11:00 PM by alexportnoy.)
05-20-2015 10:59 PM
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surferdude2 Online

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Post: #7
RE: How do I fix my RESMED Humidifier?
Any proficient heliarc (TIG) welder can handle stainless steel. Much less distortion versus gas welding when working with thin sheet items. Check your local welding shops for someone who can help you.
05-21-2015 12:03 AM
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me50 Offline

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Post: #8
RE: How do I fix my RESMED Humidifier?
(05-20-2015 10:59 PM)alexportnoy Wrote:  Who sells JUST the stainless steel water chamber?


Look at the supplier list at the top of each page on the forum. There are several that sell the chamber (that is the stainless steel bottom part with the fill line included with it and the top that goes on it) and will ship internationally.

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05-21-2015 12:05 AM
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PaytonA Offline
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Post: #9
RE: How do I fix my RESMED Humidifier?
If you really do want to try a repair (personally I would not), I would advise against anything that involves localized heating to reasonably high temperatures. The potential problem being the flatness of the finished surface. You need as much contact as possible (even on a microscopic level) between the tub and the heat plate to ensure good heat transfer. With either welding or soldering, you are liable to take the bottom of the tub out of flat and potentially make it unusable. I would not be happy to pay for a repair and end up having to buy a new one anyway.

You could have the SS tub impregnated to eliminate the leakage. If you know where the leak is you may even be able to find spot impregnation kits on the Internet somewhere that you could do yourself. Google "Diamant polymer" or others. If you go to a commercial impregnator, I would advise against impregnation with sodium silicate which is very old school. Today's polymer impregnants are much better.

Good luck,

PaytonA
05-21-2015 12:01 PM
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OMyMyOHellYes Online

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Post: #10
RE: How do I fix my RESMED Humidifier?
This has nagged me for the last 20 hours or so. I don't know why. It really shouldn't - do what you want to do. So this is just an editorial. My opinion. Yeah I have one of those too.

This is one of those situations where it is just better to say "screw it" and buy the new part. By the time the leg work is done to find some one that can do it, and someone that can do it and then *will* do it, and then you take it to them, and then you pay them to "fix" it, and then you may not have a workable tub, but a totally screwed up one and then you have NO tub and then you end up having to just go ahead and buy a new tub.

New tub is less than $30 USD from vendor 2, and maybe that much more again to ship it to AUS, replacement seems cheap. Even if it ended up having it come from an overpriced AUS vendor at $100 AUS.

OMMOHY
05-21-2015 04:49 PM
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