Fault message
In an error situation the alarm LED on the front will be on and the alarm relay will be activated (depending on priority).
If you push the alarm button for 3 seconds you can see the alarm report in the display.
(Alarm priorities can be changed. See the User Guide.)
Here are the messages that may appear:
Code / Alarm text via data
communication
Description
Alarm relay groups
(P41)
A1/--- High t.alarm
High temperature alarm
1
A2/--- Low t. alarm
Low temperature alarm
2
A4/--- Door alarm
Door alarm
4
A5/--- Max. hold time
The ”o16” function is activated during a coordinated defrost
5
A11/--- No Rfg. sel.
No refrigerant selected
7
A15/--- DI1 alarm
DI1 alarm
4
A16/--- DI2 alarm
DI2 alarm
4
A45/--- Standby mode
Standby position (stopped refrigeration via r12 or DI input)
8
A59/--- Case clean
Appliance cleaning. Signal from DI input
8
AA2/ ---Refrig Leak
A refrigerant leak detection signal is received
9
AA3/--- CO2 alarm
A refrigerant leak detection signal is received and the selected refrigerant is CO2
9
a04/--- Wrong IO cfg
The configuration of inputs and outputs is incorrect
6
--- Max. Def.Time (A,B)
Defrost stopped based on time instead of, as wanted, on temperature. Section A / B
5
E1/--- Ctrl. error
Faults in the controller
6
E6/--- RTC error
Check clock
6
E20/--- Pe error
Error on pressure transmitter Pe
3
E24/--- S2 error
Error on S2 sensor
3
E25/--- S3 error
Error on S3 sensor
3
E26/--- S4 error
Error on S4 sensor
3
E27/--- S5 error
Error on S5 sensor
3
Data communication
The importance of individual alarms can be defined with a setting. The setting must be carried out in the group "Alarm destinations"
© Danfoss | DCS (vt) | 2019.10
AN300028324304en-000401 | 15
