Samsung Galaxy S4 Display Assembly
Did you do a flow test to determine if the machine is de-scaled thoroughly?
First, clean the showerhead screen extremely well. Then do a flow test through the brew head (without the portafilter). Water should pour at a rate of 8 fl. oz. per 35-45 seconds, or less. If it pours closer to 50 seconds, then the machine needs to be descaled (please see instructions).
To verify that the portafilter is okay, do a water flow test with an empty portafilter. The rate should be approximately 2 fl. oz. of water per 15-20 seconds. If it’s closer to 25 seconds, check the basket screen and possibly soak it in decalcification solution.
The pump rarely goes out. Flow problems are usually caused by scale buildup either in the lines or inside the boiler. Sometimes the scale build up is bad enough that de-scaling won't be enough and you will have to take the boiler apart to remove the build-up. If the flow rate through the steam wand is OK but through the brew head it is not, then this may be your problem.
If you've gone through the descaling procedure and the water still flows slowly, you will have to take apart the the boiler and clean out the scale deposits manually. It will look like it is full of sand when you take it apart; this is what is clogging the machine. Once you d this it should work like new.
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