Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account

New Posts   Today's Posts

GoodKnight unit ramps down, "drops out of warp"
Hello friends -

I'm using an older GoodKnight 425 bipap. Suddenly, every 20 minutes, it ramps down and the stream of air is weakened. Sort of like the opposite of the ramp up feature, only it isn't gradual - the unit suddenly drops our of warp. I can turn it off and back on again and it corrects the issue for about 20 minutes then the cycle starts all over. Needless to say, it's a little jarring. Anyone know if this is a setting and/or how to correct it?

Post Reply Post Reply
That sounds like its time for a new machine. I'd guess the blower motor/bearings are shot. Maybe once it gets up to a certain temperature, it just shuts down?
Post Reply Post Reply
Warp core damaged by Klingons?

The GoodKnight 425 is obsolete; and received less than *stellar* reviews.
Best option seems to be to replace with a current generation machine.
Post Reply Post Reply

Hi jpap,
WELCOME! to the forum.!
Unfortunately, it sounds like you need a new machine. That's an old Puritan Bennett machine.
the company is a french company called Sefam Medical that bought them out several years ago, I don't know much else about them other than that.
Hang in there for more responses to your posts and I wish you good luck in finding a machine.
Post Reply Post Reply
Concur with the earlier comments. Time for a new machine.

Sorry about your Goodknight 425, I think it's a goner and there isn't much support left for those machines. I've had three of them. Bought the first one to use for travel. The last was bought as old, new stock without warranty from a DME and sacrificed for parts after it threw error codes the second time it powered up. It did manage to supply a motor controller card and a few other parts but in the end it was futile. From discussions with the DME's tech, the failure rate on the GK425s they sold was so high and so early in service life, if yours is more than a few years old you have an exception.

Post Reply Post Reply
Welcome to the forum jpap! Glad you found us.

You might want to take a look at the Supplier List above. Click on the link. Check out each one for the best deal. Sometimes certain ones have awesome sales. Supplier #2 sells new and gently used machines at a good price. JMHO but you might want to stick with a big name brand like ResMed or Phillips Respironics, or Fisher & Paykel.

Good luck to you and keep us posted!
APNEABOARD - A great place to be if you're a hosehead!! Rolleyes

Post Reply Post Reply

Possibly Related Threads...
Thread Author Replies Views Last Post
Question CPAP at Altitude and Oxygen concentrator, Options for portable unit? mogulman 7 173 09-06-2017, 03:21 PM
Last Post: mogulman
Question Don't know what happen last night time warp dwd1249 12 592 06-19-2017, 02:02 PM
Last Post: personal111
  Data Drops Resmed Airsense 10 For Her tinkicker 3 364 04-06-2017, 09:42 PM
Last Post: trish6hundred
  [Equipment] ResMed AirSense - Is there data storage on the SD card AND in the unit itself? FormerFed 19 4,914 11-03-2016, 03:17 PM
Last Post: PreciousRoy
Gross [Equipment] Unit not working Monty6894 3 639 09-18-2016, 06:52 AM
Last Post: cate1898
  Saving & Restoring Card to unit R_W_B 11 749 09-04-2016, 06:15 PM
Last Post: R_W_B
  [CPAP] Battery powered unit for motorcycle camping David Petersen 9 4,671 07-19-2016, 12:55 PM
Last Post: MrGadget

Forum Jump:

New Posts   Today's Posts

About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.