PLUS 200 2 PLT
Page 21
Rev. 02-06 MANUALE D’USO E MANUTENZIONE
TROUBLESHOOTING GUIDE
In the event of any anomalies the PLUS200 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
Room temperature sensor faulty
• Check that the room sensor is
working properly
• If the problem persists replace the
sensor
E1
Defrost sensor 1 faulty
(In this event any defrosts will have duration time d31
• Check that defrost sensor is
working properly
• If the problem persists replace the
sensor
E2
Defrost sensor 2 faulty
(In this event any defrosts will have duration time d32
• Check that defrost sensor is
working properly
• If the problem persists replace the
sensor
E3
EEPROM ALARM
EEPROM memory error detected.
(All outputs deactivated except alarms)
• Switch off unit and switch back on
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
Ec1
Compressor 1 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
Ec2
Compressor 2 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
Temperature
shown on
display is
flashing
Minimum or maximum temperature alarm.
The temperature inside the cold room has exceeded
the min. or max. temperature alarm setting (see
variables A1 and A2, user programming level)
• Check that the compressor is
working properly.
• Sensor not reading temperature
properly or compressor start/stop
control not working.
CHAPTER 6: TROUBLESHOOTING
CHAP. 6 - Troubleshooting