Daikin Altherma EHYHBH05A Series - Page 226

15 | Troubleshooting
Installer reference guide
226
EVLQ05+08CA + EHYHBH05A + EHYHBH/X08A + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1G – 2022.09
Error code Detailed error code Description
HJ 11 Boiler abnormality detection
Check boiler
Refer to boiler manual
HJ 12 Bypass valve turning error
Please contact your dealer.
U3 00 Under floor heating screed
dryout function not
completed
correctly.
U4 00 Indoor/outdoor unit
communication problem.
U5 00 User interface
communication problem.
U6 36 Boiler standby abnormality
Check boiler
Refer to boiler manual
U8 01 Connection with adapter lost
Please contact your dealer.
UA 00 Indoor unit, outdoor unit
matching problem.
Power reset required.
UA 52 Boiler, indoor unit matching
problem.
Please contact your dealer.
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 during heat pump operation
05 models 7l/min
08 models Heating 8l/min
Cooling 8l/min
Minimum required flow during defrost operation
05 models 7l/min