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USE AND MAINTENANCE MANUAL
Rev. 02-18
PLUS
100
AB
TROUBLESHOOTING GUIDE
In the event of any anomalies the PLUS100 AB system warns the operator by displaying alarm
codes and sounding the warning buzzer inside the control panel. If an alarm is tripped the display
will show one of the following messages.
ALARM
CODE
POSSIBLE CAUSE
PROCEDURE TO BE FOLLOWED
E0
Roof temperature sensor faulty
Check that the room sensor is
working properly.
If the problems persists replace
the sensor.
E1
Defrost sensor faulty
(In this event any defrosts will have duration time
d3
)
Check that defrost sensor is
working properly.
If the problems persists replace
the sensor.
E2
Product temperature sensor faulty
Check that product sensor is
working properly.
If the problems persists replace
the sensor.
E3
EEPROM ALARM
EEPROM memory error detected.
(All outputs deactivated except alarms)
Switch off unit and switch back on.
E5
Data write alarm
The controller is not saving data correctly.
Contact technical assistance
service.
E6
Flat battery alarm
The controller will function for at least another 20
days; subsequently any power loss to the board will
involve loss of time settings (but not previously
recorded data)
Change the battery.
E7
Day/month/date anticipation attempt alarm
Happens when you try to bring forward the date by a
day, month or year or if data is already present.
Switch off unit and switch back on;
date/day/month/year will be
restored as per the settings prior
to the variation attempt.
E8
Man in room alarm
The man in room alarm switch in the room has been
pressed to indicate a dangerous situation
Reset the alarm switch inside the
cold room.
E9
Faulty printer alarm
Check printer connections.
Ec
Compressor safety device tripped
(e.g. Overheat or
max. pressure switch.)
(All outputs deactivated except the alarm one, if
present)
Check the compressor status.
Check compressor absorption.
If problem persists contact
technical assistance service.
CHAPTER 6: TROUBLESHOOTING
CHAP. 6 - Troubleshooting
6.1
