Faema E71 E, Engineer'S Manual

Page: 47 / 69

English
42 EN
12. Diagnostic messages
MALFUN.
CODE
VERIFICATIONS and SOLUTIONS P OSSIBLE CAUSES DESCRIPTION
USB power-supply
malfunction.
Group boiler pressure sensor
x out of range (x = 1, 2, 3, 4)
Note: Group 1 is to the far left.
AC 24V power supply
malfunction.
Clock malfunction.
No power: group, EV, milk
pump
LCD display not connected
(applies only to machines
other than Emblem R and
M100).
Slave micro processor
malfunction.
Milk pump motor overcurrent
Temperature sensor signal
out of range.
Group boiler temperature
sensor x out of range
(x = 1, 2, 3, 4)
Note: Group 1 is to the far left.
Boiler heating timeout
- 45 minutes.
• USB-port current-
consumption too high.
• Sensor failure
• Card failure.
• The glass fuse on the
CPU board is likely broken.
• Contacts oxidised.
• Dead battery.
• Clock blocked.
• Voltage drop in the
power supply
• Break in cabling.
• Display fault.
• Consequence of applied
force
• Rotor blocked
• Pump motor faulty
• Sensor failure
• Card failure.
• Thermocuple
disconnected
• Sensor failure.
• The safety thermocouple
has been triggered
• The resistance is
interrupted (cabling
defect)
• The Triac card is
malfunctioning.
• Check the status of the USB port and its
connections in order to identify possible causes of
excessive consumption (e.g. short-circuit).
• Once the cause of the malfunction is fixed the
USB port should restore itself automatically and
return to normal operation.
• If the problem persists, replace the CPU board.
• Check cabling
• Replace the sensor
• Replace the card.
• Replace the fuse.
• Clean the contacts on the battery.
• Measure the voltage of the battery (3 V DC) and,
if necessary, replace it.
If the battery is OK try, with the machine turned off,
to remove it from the board and wait 2-3 minutes.
Then reinsert the battery and check that the clock
is working properly.
• Check if CPU card has power.
• Check power supply unit (protection)
• Check cabling
• Check cabling.
• If the problem persists, replace the Newton board.
• Check wiring.
• Check whether the circuit or pump is clogged.
• Replace the pump.
• Check cabling
• Replace the sensor
• Replace the card.
• Check cabling
• Replace the sensor.
• Check if the safety thermostat has been triggered,
and reset it if necessary
• Check if there are interruptions or detached
fastons on the cabling
• Check that the boiler resistance is not interrupted
and replace it if necessary
• Replace the Triac card.
020
(x)21*
023
024
025*
029 *
030
041*
051
(x)51*
052