Nespresso EF483/484 Machine modes of Citiz coffee machines, Enter mode Actions Exit mode

O P E R A T I O N

5.3Machine modes

5.3.1 Machine modes of Citiz coffee machines

This table helps to understand the operating modes of a Citiz coffee machine:

Machine mode

1 Heat up mode

2 Self test mode

Enter mode		Actions	Exit mode
	Heats up thermoblock
Every time after switch­	to ready temperature		e.g. switching off
	90 °C within 60 s with­
ing on machine	out overshooting target		machine
	temperature
	Tests:
	•	NTC short circuit
	•	NTC connected
Every time after switch­ •		Thermoblockheating e.g. switching off
ing on machine		curve	machine
	Error handling:

Tracking of the last 5 errors by a ring buffer

3 Ready mode

4a Brewing mode

4b Volume brewing mode (program­ ming cup size)

5 Descaling mode

•After heat up and self test mode was ok

•After brewing or volume brewing coffee

•After reset mode

•After leaving descaling mode

•Press and release large or small coffee button (brewing mode)

•Press and hold large or small coffee button for more than 3 s (programming mode)

•Switch on machine, wait until ready

•Press and hold both coffee buttons for at least 3 s

Keeps thermoblock	e.g. switching off
temperature at 90 °C	machine

		•	Press and release
			large or small coffee
			button when
			machine was in
			brewing mode or
			automatic exit given
			by the flow meter
		•	Release large or
			small coffee button
			when machine was
			in programming
			mode
		•	Switching off
			machine
		•	Press and hold both
•	Regulate tempera­		coffee buttons for at
	ture to 65 °C (after		least 0.5 s
	pump was started)	Note:
•	Stop and start pump	When machine is
	with any coffee	switched off during any
	button, no volume	descaling mode, then it
	brewing in descaling	goes to descaling
	mode	mode ready state after
		next switch on.

34Citiz service manual