Daikin Altherma 3 R F Installer's Reference Manual page 172

13 | Troubleshooting
Installer reference guide
172
Error code Detailed error code Description
UA 22
INFORMATION
Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.
INFORMATION
If the unit detects flow when the pump is not running, an external device might be
causing flow, or there might be something wrong with the flow measuring devices
(flow sensor and flow switch).
▪
If the flow sensor detects flow when the pump is not running, the unit will stop
operation and the user interface will display error C0‑00. For the unit to resume
operation, this error needs to be reset manually.
▪
If the flow switch detects flow when the pump is not running, the unit will
temporarily stop operation and the user interface will display error C0‑01. After
some time, the error will reset automatically and the unit will resume operation.
If the problem persists, the unit will stop operation and the user interface will
display error C0‑02. For the unit to resume operation, this error needs to be reset
manually.
Extension/hydro mismatch problem.
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1 – 2019.10