iCoolsport iCool 2021 Compact 3+ Series Owner's Manual page 21

If the Compact Machine is Unable to Correct the Water Flow Problem Itself
An explanation will appear in the middle of the screen and the light bar will flash RED to notify you the
machine has stopped.
Your iCool machine can not continue until the reason for the lack of water is found. See page 24.
This is important because such a powerful machine could easily freeze the remaining water in the
titanium heat exchanger tank solid and that could cause serious damage. The operating system will
not allow that to happen.
iCool Compact Series | Owners Manual
Page 21