La Pavoni P300 manual Troubleshooting Guide

TROUBLESHOOTING GUIDE

The machine is provided with a program of self-diagnosis, that allows to visualize on the display the messages of breakdown or machine stopped :

Message	Description	Probable cause
ERR. CUP-RELEAS.	during the cup-releasing, the board has not	Fuses, cup-releaser motor, cup-releaser micro
	received the change of state of the cup-releaser	switch, electronic board.
	micro switch.
ERROR ARM 0	The electronic board has not received the “sugar	Fuses, cup blocked in the cup-arm, cup-arm
	position” of the cup -arm signal by the relative	motor, position sensor, electronic board.
	sensor on the cup-station board.
ERROR ARM 1	The electronic board has not received the “cup	Fuses, cup blocked in the cup-arm, cup-arm
	position” of the cup -arm signal by the relative	motor, position sensor, electronic board.
	sensor on the cup-station board.
ERROR ARM 2	The electronic board has not received the	Fuses, cup blocked in the cup-arm, cup-arm
	“supply position” of the cup -arm signal by the	motor, position sensor, electronic board.
	relative sensor on the cup-station board.
ERROR GROUP 1	the coffee-group has not reached the “supply	Fuses, group right micro switch, group motor,
	position” given by its right micro switch.	electronic board.
ERROR GROUP 0	the coffee-group has not reached the “normal	Fuses, group left micro switch, group motor,
	position” given by its left micro switch.	electronic board.
ERR. COFFEE FLOW	During espresso supplying, the board has not	Fuses, too finer coffee, coffee pump, coffee
	received signals from the flowmeter.	electro valve, flowmeter, electronic board.
ERR. SOLUB.FLOW	During soluble supplying, the board has not	Fuses, solubile pump, solubile electro valve,
	received signals from the flowmeter.	flowmeter, electronic board.
ERROR GRINDER 1	During the coffee grinding, the board has not	Too fine coffee, fuses, doser micro-switch,
	received the signal given by the doser-switch in	grinder motor, grinder blocked by something
	the maximum time of 25 seconds.	hard, electronic board.
LACK OF CUPS	The board doesn’t receive the signal from the	Lack of cups, cups sensor, electronic board.
	cups sensor.
LACK OF WATER	The board doesn’t receive the signal from the	Lack of water, float, water container micro
	float.	switch, electronic board.
ERROR BOILER 1	The board has not received the programmed	Safety thermostat, boiler heating element,
	value temperature from the boiler probe in the	electronic board.
	maximum time of 15 minutes.
EMPTY GROUNDS!	The coffee grounds decounter has reached the	Empty the grounds and execute the quick
	programmed value.	function nr.5.
ERROR EXECUTIVE	At the power-on, the board has not received	Payement system, cables, electronic board..
	signals by the payment payment, Executive or
	MDB, programmed.

HYDRAULIC CONNECTION

INSIDE TANK

The machine is already set for the inside tank working.

WATER SYSTEM CONNECTION (OPTIONAL)

∙disconnect the silicon pipe, which comes from the tank, from the limestone filter.

∙connect the silicon pipe coming from the water resevoir to the filter.

∙connect the connector with the two grey wires coming from the water reser- voir to the connector with two grey wires of the machine.

∙disconnect the wires of the float and connect the black and green wires com- ing from the water reservoir to the black and green wires into the machine.

∙check that the net-system pressure doesn't overcome the 2 bars, otherwise it is necessary to install a pressure reductor.

∙Connect the water inlet tube to the inlet electrovalve with a ¾ " fitting.

Pag. 28 Pag. 5