Daikin EPRA10EAV3 Installer's Reference Manual page 261

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
Error code
U8-11 Connection with the Wireless gateway lost
UA-00 Indoor unit, outdoor unit matching problem
UA-16 Extension/hydro communication problem
UA-17 Tank type problem
UA-59 HPSU/Hydro combination abnormality
UF-00 Reversed piping or bad communication wiring
detection.
INFORMATION
In case of error code AH and no interruption of the disinfection function occurred
due to domestic hot water tapping, following actions are recommended:
▪
It is recommended to program the start-up of the disinfection function at least
4 hours later than the last expected large hot water tapping. This start-up can be
set by installer settings (disinfection function).
NOTICE
When the minimum water flow is lower than described in the table below, the unit
will temporarily stop operation and the user interface will display error 7H‑01. After
some time, this error will reset automatically and the unit will resume operation.
Minimum required flow rate
20 l/min
INFORMATION
Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.
INFORMATION
If an U8‑04 error occurs, the error can be reset after a successful update of the
software. If the software is not successfully updated then you must make sure that
your USB device has the FAT32 format.
INFORMATION
The user interface will display how to reset an error code.
14 Troubleshooting
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Description
Installer reference guide
261