U8-04 - Unknown Usb Device; U8-05 - File Malfunction - Daikin altherma 3 M Service Manual

2.3.77 U8-04 – Unknown USB device
2.3.78 U8-05 – File malfunction
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
▪ Measure the room temperature and compare to the room temperature
shown on the user interface (remote controller).
▪ If temperature shown on the user interface differs from the measured
temperature, replace the user interface (remote controller). See
documentation of the user interface (remote controller) for more
information.
Possible cause: Faulty room thermistor.
3 Check the communication wiring between the remote controller and the unit.
See "3.21 User interface" [
Possible cause: Faulty wiring between the remote controller and the unit.
4 Perform a check of the hydro PCB. See
Possible cause: Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Unknown USB device.
To solve the error code
1 Remove the USB/SDcard from the user interface.
Possible cause: Connected USB/SDcard to update the user interface or
upload e‑configuration data is NOT USB mass storage device. The USB's
format MUST be FAT‑32.
CAUTION
Always safely remove and eject media.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
File malfunction.
To solve the error code
1 Remove the USB/SDcard from the user interface.
Possible cause: Connected USB/SDcard to update the user interface or
upload e‑configuration data CANNOT be read because wrongly formatted, or
the file config.cfg CANNOT be found on the USB/SDcard.
4
266].
"3.12 Hydro
Effect
Unit will NOT stop
operating.
Effect
Unit will NOT stop
operating.
2 Troubleshooting
|
4
PCB" [ 160].
Reset
Manual reset via the user
interface.
Reset
Manual reset via the user
interface.
Service manual
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