Guest
Rank: Apprentice
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I have had what seemed to be a air bubble in the line on and off for months and finally found a solution that seems to fix the problem when it happens:
Turn the machine on and pump on (bottom switch). Heat machine up. Turn on water switch (middle switch) then open steam valve at the same time. This seems to clear the air bubble and then the water enters the group head like normal.
This problem was occurring almost daily but since I have done the above, it has only happened a couple of times in the last month. Good luck!