A friend recently purchased a 6910 and asked me to take a look at it. It looked terrific outside so I filled the water up warmed up the machine and hit the manual button to give things a bit of a flush - I heard the typical three pumps of the pre-infusion and then the continual pumping sound that normally precedes some sort of precipitation from the portafilter but there was nothing.
I removed the basked and the bottom was caked in a layer of mould. The shower screen was my next immediate port of call, and sure enough it too was quite clogged. Now that both of these are clear I expected to get some sort of flow but there is nothing - I notice that the 6910 has a filter system built in but I dont know what goes on between the filter and the portafilter.
Can any 6910 users enlighten me as to what may be occurring in the innards that would prevent water moving from the tank to the group head?
pump sounds as if it is working just fine - system is heating up and all the happy lights say go.
I removed the basked and the bottom was caked in a layer of mould. The shower screen was my next immediate port of call, and sure enough it too was quite clogged. Now that both of these are clear I expected to get some sort of flow but there is nothing - I notice that the 6910 has a filter system built in but I dont know what goes on between the filter and the portafilter.
Can any 6910 users enlighten me as to what may be occurring in the innards that would prevent water moving from the tank to the group head?
pump sounds as if it is working just fine - system is heating up and all the happy lights say go.

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