U8-06 - Bizone Kit Canopen Communication Error; U8-07 - P1/P2 Communication Error - Daikin EBLA04E V Series Service Manual

3 | Troubleshooting
3.3.85 U8-06 – Bizone kit CANOpen communication error
3.3.86 U8-07 – P1/P2 communication error
Service manual
76
draft – 31/05/2022 15:53
Trigger
Communication
abnormality between user
interface PCB and bizone
kit box.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the user interface (main PCB). See
4
interface" [ 234].
Possible cause: Faulty user interface (main PCB).
2 Perform a check of the bizone kit PCB. See documentation of the bizone kit.
Possible cause: Faulty bizone kit PCB.
3 Check the communication wiring between the unit and the bizone kit box. See
"5.1 Electrical circuit" [
Possible cause: Faulty wiring between the unit and the bizone kit box.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Lost communication
between unit user
interface and unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check the communication wiring between the user interface and the unit PCB.
See "4.20 User interface" [
Possible cause: Faulty wiring between the user interface and the unit PCB.
2 Check if the unit user interface functions correctly. See
interface" [ 4 234].
Possible cause: Faulty user interface on unit.
3 Perform a check of the hydro PCB. See
Possible cause: Faulty hydro PCB.
4 Check if the power supply is compliant with the regulations. See
circuit" [ 4 254].
Effect
Unit will stop operating.
4
254].
Effect
Unit will NOT stop
operating.
4
234].
"4.12 Hydro
Reset
Automatic reset.
"4.20 User
Reset
Automatic reset.
"4.20 User
4
PCB" [ 175].
"5.1 Electrical
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05