Controller
41PKGP-SVX19A-EN
Alarms
● Press the Alarms button to display the alarm messages. The text is red when alarm occurs, and the time of occurrence is
displayed.
● After the alarm is solved, the text of the alarm message turns black and the alarm resolution time is displayed.
Service
● A password is required to access the service features and can only be used by professionals.
Alarms and Troubleshooting
Items Alarms Description Possible causes Actions
1
The controller cannot query the connected air
conditioning system
1) Port A and port B connected reversely
2) SW3 address not set
Check the wiring
Set SW3 address correctly
2
The controller cannot some connected air
conditioning system
1) Duplicated addresses
2) Port A and port B of the units connected reversely
1) Check the address of each unit in the
system
2) Check the wiring
3
Some units in the system are lost during
normal operation
The centralized controller is disconnected, or the
outdoor unit is disconnected
Check whether the external unit of the
centralized controller is powered o
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