water will not dispense even though it has been descaled properly
machine works properly one day, making two or three cups and then does not work for weeks. Has been descaled properly several times back to back
Repair and disassembly guides for the Breville BKC600XL Gourmet Single Cup Brewer.
Wow, the only thing worse than no advice is bad advice.
First and foremost, are you getting a “READY TO BREW” message? That would indicate both your boiler water level is sufficient and your temperature is sufficient.
Secondly, lets clarify whether your several descales were done prior to the failure beginning or was it when the machine intermittently began working for a day outside of the weeks of malfunctioning?
Thirdly, yes, @mbesho did correctly identify several of the key systems onboard your shiny BKC600/700XL precursor to Elon Musk’s Martian transport.
Fourthly, the question you pose is where in the chain of command has one of the soldiers identified by @mbesho gone AWOL.
You seem to be indicating this is an intermittent problem, although the way you have written your question, it could be a failure that began and persists unabated at anytime. I will guess you are saying it is intermittent that the machine works one day and then takes an unannounced and rude vacay for a few weeks.
One unlikely possible suspect that comes to mind, based on your question, and my rather shoddy guesses at the nature of your machines usability, is your machines tiny air pump’s motor. The vibration pump for your water is a different animal. There are several poles/positions on your air pump’s motor and if one goes bad, if the alignment isn’t perfect, you get a dead spot and until the bad spot on the motor is aligned properly it won’t spin up. Your vibration pump seems to be working somedays (again guessing this is intermittent and not permanently persistent). The nature of a vibration pump rules out the type of problem you are describing to a large degree.
That ruled likely out, there is a little plastic screen where your water reservoir valve is pressed into when you insert the water reservoir into your machine. That can become clogged with debris etc. Inspect that first. Many times the problem you describe is a problem of water intake from the reservoir. If there is some debris or just crud buildup on that plastic black screen you’ll have a water flow problem there that will get worse with time, working one day and not the other, or not for several days. If you look at the bottom of your machine there a silver metal plate you can remove, beneath which you will find this:
This is the place you can find the screen that can be blocked where your water reservoir interfaces with the machine. Here is the link to the ifixit page where you will see “Step 2” to look into the problem (REMEMBER TO UNPLUG THE MACHINE BEFORE DISASSEMBLY):
Alternate problem sites:
Finally, ALWAYS make sure your machine is UNPLUGGED if you are going to cross any part of yourself into the interior of an electrical machine like this. The temptation to reach inside is great and you must resist turning to the dark side and putting your life at risk by reaching inside. If you want to watch the internals work when you have the outer case off, do so from arms length just out of your reach so you have to think about what you are doing . . . resist the temptation to touch a machine’s internals while it is plugged in unless you are a trained professional in either repair or an electrical component field. Your family and friends will thank you for this.