ACCADEMIA 05 TROUBLESHOOTINGGAGGIA Rev. 00 / March 2010 Page / 1203INDICATORSFLOW_METERLQGLFDWHVWKHZDWHUÀRZUDWHLQWKHÀRZPHWHUH[SUHVVHGLQSXOVHVSHUVHFRQGWhen coffee pump 1 is switched on (and EV_AC_COFFEE is on), the value must not be less than 10 p/s.When the hot water/steam pump 2 is switched on (and EV_DC_DISCHARGE is on), the value must not be less than 5p/s.POWER FREQ.: indicates the frequency of the power supply voltageDRIP DRAY: indicates the status of the tray level sensor. If enabled, it indicates that the level has been reachedWATER TANK: indicates the status of the water tank level sensor. If enabled, it indicates that the level has beenreachedCARAFFE CLEAN: if enabled, it indicates that the milk carafe is in the CLEAN positionCARAFFE MILK: if enabled, it indicates that the milk carafe is in the MILK dispensing positionCARAFFE PRESENT: if enabled, it indicates that the milk carafe is connectedPUMP 1COFFEEFLOWMETER(p/s) 0POWERFREQ.(Hz) 50EV DC2STEAMPUMP 2WATER &STEAMDRIPDRAYWATERTANKEV DC3AIREV ACCOFFEECARAFFECLEANCARAFFEMILKEV DC4CLEANEV DC1DISCHAR.CARAFFEPRESENTDRIPDRAYEV DC5HOTWATERESC PAGE2PAGE43 Hydraulic CircuitHydraulic CircuitThis page pertains to the water circuit managementCONTROLSPUMP1 COFFEE: if pressed, the coffee boiler pump is activatedand if pressed again, it is disabledPUMP2 WATER&STEAM: if pressed, the steam/hot water boilerpump is activated and if pressed again, it is disabledEV_AC COFFEE: if pressed, the 230 V solenoid valve is activatedEV_DC1 DISCHARGE: activates the 24 V solenoid valve for thedraining processEV_DC2 STEAM: activates the 24 V solenoid valve to dispensethe steamEV_DC3 AIR: activates the 24 V solenoid valve to froth the milkEV_DC4 CLEAN: activates the 24 V solenoid valve to clean themilk circuitEV_DC5 HOTWATER: activates the 24 V solenoid valve todispense hot water