Fisher & Paykel ICON+ CPAP machine error

My Fisher & Paykel ICON+ CPAP machine has started cutting out. It works OK, but suddenly stops. The power is on, and the LCD has the word 'error'.

There seems to be no error number.

I've looked at the USB data, but it doesn't seem to contain any error data.

Any ideas of what this might be?

No Error Number seems strange. I've only had my F&P Icon since November and I've found it will not work properly without water in the humidifier reservoir. I've been bleary eyed and barely conscience when this has happened, but slowly learned that I need to check these things before I tuck into bed. I really like sleeping so much anymore, it is easy to forget before bedtime.

According to the F&P Icon+ User Manual from the F&P website, when an error message is displayed, you should:

Disconnect from power, then connect and re-start device. If the error persists, record the number displayed and contact your healthcare provider for further instructions.