My beloved Diadema Unico Spendor is poorly and I need advice. The machine has been producing brilliant coffee until the last month or so, when it developed the issues listed below.
Im in Hobart where theres no dealer/local specialist knowledge of these machines.
Heres the symptoms:
* When pouring a shot I get water gushing from the overflow below the group head - roughly equal quantities coming from the portafilter and through the overflow port into the tray.
* The shot has no crema - just black espresso with a few crema-coloured spots on top.
* Water is dripping from the group head constantly. (Sometimes hissing and spitting, with steam coming from the group head)
* When backflushing I get a soft dribble of water from the overflow chute instead of the usual sudden, forceful "whoosh" of water.
Machine details:
*Approx. 3 years old.
* Only used (Brita) filtered water.
* Used once every week day, 3 times each Sat and Sunday.
* Backflushed ~ every 3 months with the detergent supplied by Cosmorex (Plus 3 times in the past week to dislodge a blockage, if any exists)
Im thinking perhaps a solenoid valve?
Any ideas?
Im in Hobart where theres no dealer/local specialist knowledge of these machines.
Heres the symptoms:
* When pouring a shot I get water gushing from the overflow below the group head - roughly equal quantities coming from the portafilter and through the overflow port into the tray.
* The shot has no crema - just black espresso with a few crema-coloured spots on top.
* Water is dripping from the group head constantly. (Sometimes hissing and spitting, with steam coming from the group head)
* When backflushing I get a soft dribble of water from the overflow chute instead of the usual sudden, forceful "whoosh" of water.
Machine details:
*Approx. 3 years old.
* Only used (Brita) filtered water.
* Used once every week day, 3 times each Sat and Sunday.
* Backflushed ~ every 3 months with the detergent supplied by Cosmorex (Plus 3 times in the past week to dislodge a blockage, if any exists)
Im thinking perhaps a solenoid valve?
Any ideas?



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