CPAP won’t turn off? – A quick explanation

  • By Clay Rollyson
  • /
  • /
We are asked all the time by customers, “why does my CPAP keep running when I turn it off?” This is a great question. Luckily, it has a very simple explanation. Chances are if you are experiencing this issue, you are using a ResMed CPAP. This is actually a feature of ResMed CPAPs and is necessary. Let’s take a look at what’s going on.

Why does the CPAP keep running when it is turned off?

ResMed CPAPs have a feature that allows the unit to shut down properly after every use. It is a cool-down process which helps the CPAP to operate correctly. Every time you shut the CPAP down it will go into this cool-down mode. It does this automatically. In the top of your screen, you will notice a blinking snowflake signaling to you that it is in this mode. When it is complete the snowflake will disappear, and the motor will turn off completely.

Can the cool-down be disabled?

We have customers trying to disable this feature all the time. It cannot be turned off, and really should not be. It is a necessary part of the proper operation of your CPAP machine. Simply allow it to run the course, and it will last for years to come.

What does the cool-down mode do?

The engineers are ResMed are pretty smart dudes and dudets. They make CPAPs work very well and last a long time. So, I will assume that there is a very smart engineering reasoning behind it that I don’t fully understand. However, I will say that there are a couple obvious reason.
  1. Letting the motor cool down– Like any motor it is important for the CPAP motor to finish up and rest properly. This feature gives it the chance to runs lightly until it goes back to a good resting temperature.
  2. Drying out the system– The light air running through the tube and mask are great for drying out any excess condensation that may be left behind by the humidifier.