Nuova Simonelli’s Appia and Aurelia are workhorses in cafes, and the Oscar II is popular at home and in offices. These are the faults we see most often.
1. Water coming out of the steam wand
Why it happens: the boiler is overfilling because of a scaled level probe or a sticking autofill valve.
The fix: clean or replace the probe and valve, then descale.
2. Inconsistent shot volumes
Why it happens: a dirty or worn flowmeter, or a scaled gicleur.
The fix: clean or replace the flowmeter and gicleur and reset the doses.
3. Group head leaking
Why it happens: worn group gaskets and shower screens.
The fix: replace the gaskets and screens on every group.
4. Oscar II pressure or safety valve hissing
Why it happens: a pressurestat out of adjustment, or scale affecting the safety valve.
The fix: service or replace the pressurestat and safety valve.
5. Steam wand dripping
Why it happens: worn steam valve seals.
The fix: rebuild the steam valve.
Nuova Simonelli needing a repair? Book a free assessment or call 0424-140-133.