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Troubleshooting
Service manual
63
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
266].
Possible cause:
Faulty wiring between the remote controller and the unit.
4
Perform a check of the hydro PCB. See
160].
Possible cause:
Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.77 U8-04 – Unknown USB device
Trigger
Effect
Reset
Unknown USB device.
Unit will NOT stop
operating.
Manual reset via the user
interface.
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.
2.3.78 U8-05 – File malfunction
Trigger
Effect
Reset
File malfunction.
Unit will NOT stop
operating.
Manual reset via the user
interface.
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.
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