Gaggia Syncrony Logic Coffee Machine (SUP20)

[carlos_uk]

Hiya,

I have the above coffee machine which has made me coffee everyday for the past sixteen years, that was until yesterday when it decided to stop working suddenly.

Basically the brew unit (it’s a fully automatic bean to cup machine) is not completing its cycle and the motor is running very quietly, so I took it apart and all appears fine apart from the motor that drives the brew unit isn’t spinning fast enough and according to my multimeter there is only 6-8 v dc getting to it, when I believe it’s meant to be 230v dc, I’ve traced the wires back to the PCB and am still getting the same reading.

Not sure if anyone on here knows about these machines but from my investigations I’m presuming that the PCB is knackered? Unless anyone can suggest anything else I could check?

Many Thanks in advance,
Carl.

[electrofix]

what struck me here is the words not spinning fast enough

since this motor goes through gears it should not spin at all unless its moving the brew unit

Dave

[carlos_uk]

Hi Dave,

You are correct, however the motor is not moving the gears and therefore the brew unit within the allowed time and is therefore causing the machine to time out and not completing the cycle.

Thanks,
Carl.

[electrofix]

assumed the brew unit is not loading and unloading but the motor should not turn. if it was turning either the brew unit should move or the gears have gone

so is the motor moving or not ?

Dave

[carlos_uk]

Hi Dave,

The motor is turning but not fast enough and I presume not generating enough torque to move the brew unit properly, it is a known fault that can occur with this machine that the PCB stops supplying sufficient voltage to drive the motor, I spoke to a company that repairs these machines and they have confirmed this after I’ve tested with my multimeter, however a replacement PCB is £125 and they also recommend to replace the motor as well which is another £25!

Regards,
Carl.

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