Lost knob for Resmed S9

[mvbii]

I lost the knob for my Resmed S9, Resmed says I have to go to my provider; big hassle. Any other ideas where I might get one?

Thanks!

[zonk]

Give suppliers # 27 and 28 a call, they might be able to assist
Suppliers List http://www.apneaboard.com/forums/Thread-...plier-List

[trish6hundred]

Hi mvbii,
WELCOME! to the forum.!
Hang in there and good luck finding a knob for your machine.

[justMongo]

Where's that photo of a disassembled S9? I think that knob has a 6mm shaft. I don't recall if the shaft is round or D shaped.
(I think it's D shaped with a push on knob)
You can likely make a potentiometer, 6mm knob work. I'd look for one with a set screw.

Since the knob is dual function -- both turn and press, the depth of attachment is critical. That's where a set screw might let you fix the position on the shaft.
Look for them online as 6mm potentiometer knobs -- or, if you have a friend who has been into electronics for a long while, likely they would have a knob that could be made to work.

BTW -- how did you lose it?

[archangle]

You might check with some of the suppliers in the supplier's list. #18 has been responsive to e-mails in the past, although it wasn't a "repair" part like the a knob.

[diamaunt]

Where's that photo of a disassembled S9? I think that knob has a 6mm shaft. I don't recall if the shaft is round or D shaped.
(I think it's D shaped with a push on knob)
You can likely make a potentiometer, 6mm knob work. I'd look for one with a set screw.

Since the knob is dual function -- both turn and press, the depth of attachment is critical. That's where a set screw might let you fix the position on the shaft.
Look for them online as 6mm potentiometer knobs -- or, if you have a friend who has been into electronics for a long while, likely they would have a knob that could be made to work.

BTW -- how did you lose it?

it's splined no set screw, just press on. I'd have to find my caliper to get a measurement... and it seems to have buggered off.

[JJJ]

I lost the knob for my Resmed S9, Resmed says I have to go to my provider; big hassle. Any other ideas where I might get one?

Try a surplus electronics store, if you can find one in your area. There are a couple of them in my city. They have bins full of all kinds of knobs.

[justMongo]

it's splined no set screw, just press on. I'd have to find my caliper to get a measurement... and it seems to have buggered off.

Plenty of 6mm splined knobs at that online company run by Bezos.
6mm (approx 0.25 inches is a very common shaft size.)

[mvbii]

Thanks, I'll try one from Bezos!

[archangle]

A post elsewhere makes me think Supplier #17 may also be good for repair parts.