I've had my Syntia for several years now and love it. it's small enough to fit under the cabinets and tuck away when not in use and has for the most part worked flawlessly. we probably use about 4lbs of coffee per month so that equates to a lot of cycling of the machine. My recent issue is that for about 1 out of every 3 cycles the grinder will grind the beans but not brew them - instead kicking them into the dump tray and giving me the yellow "out of beans" warning on the display. the frequency of this occurance is getting annoying.
I have tried different grinder settings, fully cleaning the dump chute, inspected for clogs, ive tried changing the bean type and roast. I primarily use the Lavazza Sampler set from wholelattelove- purchasing 6lbs at a time.
It seems it is a consistent but intermittent issue. unfailingly, if i am brewing 3 or 4 cups, i will get the "no beans" error at least once and sometimes more than one, and end up shooting perfectly good, ground, but unbrewed coffee grounds into the dump chute.
I am fairly meticulous with cleaning and maintenance - so i am thinking it may be a failing sensor switch? Is there a sensor that determines if the right amount of ground espresso has been sent into the brew group? Could the issue be a failing brew/dump switch? (i'm not really sure what the brew/dump switch is responsible for but i know its a part that is replaceable)
Very perplexed. It would be a big production to send my machine out for service as the closest service is about 3 states away (in NYC, i'm in boston)
Any advice or has anyone had this issue before?