I know it sounds paranoid, but have you read the Disclaimer? If not, please do so before reading on.

	SYMPTOM	CAUSE	SOLUTION
	Light "crema" (coffee comes out of spout too fast).	Water temp. below 194 Degrees F (90 C) Pump pressure above 132 psi (9 atm.) Diffusers blocked Filter holes worn (too big)	Increase boiler pressure by adjusting pressure regulator Reduce pump pressure Check and clean diffuser with a blank filter, replace if necessary Check and replace filter basket
	Dark "crema" (coffee drips through spout)	Water temp. above 203 F (95 C) Pump pressure below 132 psi (9 atm.) Diffusers blocked Filter basket and/or filter holder blocked	Reduce boiler pressure by adjusting pressure regulator Increase pump pressure Check and clean diffuser with blank filter, replace if necessary Check and clean filter holder, check/replace filter basket
	Coffee grounds in the cup	Pump pressure above 132 psi (9 atm.) Filter holes too big Diffuser partially blocked	Reduce pump pressure Check or replace filter basket(s) Clean or replace diffuser
	Coffee sprays out of spout (sparse crema) or drips over sides of filter holder	Filter holder spout blocked Leaky gasket Filter holder not tightened enough	Clean filter holder Replace gaskets Tighten filter holder further on head
	Hollows in coffee grounds in the filter holder	Diffuser partially blocked	Clean or replace diffuser
	"Crema" does not hold sprinkled sugar	Prolonged extraction due to blocked filter basket (and/or holder) Uneven extraction due to blocked diffuser Water temp. too high	Clean or replace filter basket, clean filter holder Clean or replace diffuser Reduce boiler pressure by adjusting pressure regulator

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