U8-09 - User Interface Software Version / Indoor Unit Compatibility Error; U8-11 - Connection With Wireless Gateway Lost - Daikin EBLA04E V Series Service Manual

3.3.87 U8-09 – User interface software version / indoor unit compatibility error
3.3.88 U8-11 – Connection with wireless gateway lost
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
Possible cause:
▪ Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪ Power drop,
▪ Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
User interface software
version NOT compatible
with software of the
hydro PCB (indoor unit).
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check the software and EEPROM version on the user interface and PCB. See
"4.20 User interface" [
Possible cause: Mismatch between the software ID and EEPROM on the PCB
or user interface.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Communication
abnormality between unit
and wireless gateway.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check that the AP mode is active (= WLAN adapter active as access point).
Effect
Error screen will block
main user interface
application. Info button is
active for more
information on the
malfunction.
4 234].
Effect
Unit will NOT stop
operating.
draft – 31/05/2022 15:53
3 | Troubleshooting
Reset
Update software of the
user interface. NO manual
reset possible.
Reset
Automatic reset.
Service manual
77