Faema E71 E - Diagnostic Messages and Troubleshooting; Understanding Diagnostic Codes

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42EN
12. Diagnostic messages
MALFUN.
CODE
VERIFICATIONS and SOLUTIONSPOSSIBLE CAUSESDESCRIPTION
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xed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