Nespresso EF 473, EF 474 manual Troubleshooting, Checking the machine on receipt

Troubleshooting

Checking the machine on receipt

The receipt check enables you to rapidly locate faults on the machine and to initiate appropriate repair action.

Follow the check procedure.

Repair any faults found and check if the machine is operating perfectly.

Check procedure	Symptoms	Action / repair work	Further action / repair work
	1.1 Parts of housing broken or damaged	YES - Replace parts if necessary
1 Check appliance for visible		NO - Go to point 1.2
damage	1.2 Mains cable damaged	YES - Replace mains cable
		NO - Plug machine to the mains and go to point 2.1
		YES - Go to point 2.2
	2.1 Closing handle works correctly		YES - Screw on new closing handle screws at
		NO - It is hard or impossible to close the closing handle	defined torque (see page 22) or replace CBU
2 Check mechanical elements			NO - Replace the CBU
	2.2 Is the capsule correctly ejected?	YES - Go to point 2.3
		NO - Replace CBU
	2.3 Is the capsule cage seal damaged?	YES - Replace CBU
	(feel with a finger if the seal is damaged)	NO - Go to point 3
3 Fill water tank	3.1 Water tank is leaking	YES - Replace water tank
		NO - Go to point 4
		YES - a) Check if mains cable is functional	YES - Go to point b)
			NO - Replace it
		YES - b) Check if On/Off switch is functional	YES - Go to point c)
			NO - Replace it
		YES - c) Check if pump is working (press coffee	YES - Go to point f)
4 Turn-on On/Off switch to perform		button)	NO - Go to point d)
	4.1 Machine is not working (no function)
		YES - d) Check if coffee buttons are functional	YES - Go to point e)
automatic self test			NO - Replace defective button(s)
		YES - e) Check if pump's fine wire fuse (128°C) is	YES - Replace it
		defective	NO - Replace pump
		YES - f) Check if thermoblock’s fine wire fuse (167°C)	YES - Replace it together with electronic control
		is defective	board and if necessary with the thermoblock
			NO - Go to point g)

Service Manual EF 473 / EF 474 15 Version 1.0 en