I bought a spare 6910 that has problems. Just trying to find out if I can rectify the issue cheap enough otherwise I will sell on here for parts. When turning the power on the group head heats up fine but will not get past the red light onto the normal green light, leaving it unable to allow water to pass through. Have cleaned the machine thoroughly. Unsure if it's the board that needs replacing or another issue.
I'm also unable to perform a factory reset as stated in the user manual before actually turning power on
I'm also unable to perform a factory reset as stated in the user manual before actually turning power on

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