Version Nr. 1-8 - 24.12.2020
Doc. Nr. 99850310001
7 / 19
Failure table:
The display shows either ‘’OFF’’ or “EXX” with an icon flashing (triangle), alternating with the standard display. If
more than one error occurs, these are shown in sequence on the display.
Failure
Code
Description
Solution
OFF
Door open
Close the enclosure door and check the door contact switch. If no
door contact switch is used and c68=0, bridge terminals on power
connector.
Incorrect phase sequence
(3-phase units)
Displayed on power-up. Check phase sequence.
E01
Failure internal
temperature sensor
Check probe connections
E02
Failure ambient
temperature sensor
Check probe connections
E04
High temperature alarm
The measured temperature has exceeded the threshold P26.
Check rating of the cooling unit. Clean air filters, condenser; check
fans’ and compressor’s correct operation. Contact your service
partner.
E05
Low temperature alarm The measured temperature has fallen below the threshold P25.
E07 / E08
Controller error
Contact your service partner.
Important Notes
Whilst programming, if no button is pressed for 10 seconds, the display starts flashing, and after 1 minute
returns to the main display without saving changes.
To increase scrolling speed, press and hold the ▲ or ▼ button for at least 5 seconds.
When pressing “PRG” for 3 seconds, the firmware revision code is displayed for 2 seconds.
When cleaning the controller panel, do not use ethanol, hydrocarbons, ammonia or their by-products.
Use neutral detergents and water.
In order to protect the unit’s components, minimum relay output on (3 or 7 minutes) and off (4 minutes)
times and minimum time (7 or 11 minutes) between activation of the same relay output are applied.
In case of digital inputs not configured, probes not fitted or configured, or St2 not enabled on the
controller the display shows ‘nO’.