I called WLL tech support. They said the brew head needed maintenance and sold me a kit of parts. I opened the top & bottom of the brew head and replaced various part and the problem seems to be resolved.
You can view a very useful youtube video that shows exactly how to do in depth maintenance on an E61 group here E61 Group Maintenance - Espresso Machine Repair <https://www.youtube.com/watch?v=FI5-5P-jzqs> -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/brewtus. For more options, visit https://groups.google.com/d/optout.
