Hello, Paul -
I found the user manual for the Nespresso C101 online:
https://www.nespresso.com/shared_res/manuals/essenza/2012/www_Essenza_C101_Z1_NESPRESSO(EN_FR_ES_BR).pdf
In the Troubleshooting section of the manual (page 14/image 16) for the problem of "irregular interval blinking" the solution given is to call the Nespresso Club.
Page 19 of the online manual gives a full list of Contacts by country name.
Best wishes.
NESPRESSO LATTISSIMA Instructions Manual
Look under troubleshooting...uhhhh...perhaps page 7. They specifically talk about milk has stopped or not giving good froth.
Semper Fi,
Z