ECP202 EXPERT + BASE
Page 22
USE AND MAINTENANCE MANUAL
TROUBLESHOOTING
In the event of any anomalies the ECP202 EXPERT + BASE in case of anomalies, it notifies the
operator by means of the alarm codes displayed on the display and an audible signal emitted by a
buzzer inside the control panel. The EL and EH temperature alarms remain visible even after their
return (alarm icon lights on) until their acquisition (by pressing the key tacit). If an alarm condition
occurs, one of the following messages will be displayed on the display:
Cold room temperature sensor not working properly
• Check that cold room temperature
sensor is working properly
• If the problem persists, replace the
sensor
Defrost sensor not working properly
(In this case defrosts will last time d3)
• Check that defrost sensor is
working properly
• If the problems persists, replace
the sensor
Eeprom alarm
An EEPROM memory alarm has been detected
(the outputs are all disabled, except for the auxiliary
ones)
• Switch unit off and back on
• Reset the alarm input inside the
cold room
Compressor protection tripped
(e.g. thermal protection or max pressure switch)
(the outputs are all disabled, except for the auxiliary
ones)
• Check that compressor is working
properly
• Check compressor absorption
• If the problem persists, contact the
technical assistance service
Open door Alarm. When the door is opened and after
tdo time, it’s setted back the normal functioning giving
door open alarm (Ed)
• Check door switch status
• Check door switch connections
• If the problem persists, contact the
technical assistance service
Cell light alarm.
The light of the cell has been on for a time greater
than tdo.
Maximum temperature alarm.
The temperature inside the cold room has exceeded
the max. temperature alarm setting (see variables
A2, user programming level)
• Check that the compressor is
working properly.
• Sensor not reading temperature
properly or compressor start/stop
control not working.
Minimum temperature alarm.
The temperature inside the cold room has exceeded
the min. temperature alarm setting (see variables A1,
user programming level)
• Check that the compressor is
working properly.
• Sensor not reading temperature
properly or compressor start/stop
control not working.
CHAPTER 7: TROUBLESHOOTING
CHAP. 7 - Troubleshooting