Daikin Altherma 3 R W Installer's Reference Manual page 264

14 | Troubleshooting
Installer reference guide
264
Minimum required flow rate
12 l/min
INFORMATION
Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.
INFORMATION
If the booster heater overheats and is disabled by the thermostatic safety, the unit
will not give an error directly. Check if the booster heater is still in operation if you
experience one or more of the following errors:
▪
Powerful operation takes a very long time to heat up and the error code AJ-03 is
displayed.
▪
During anti-legionella operation (weekly), the error code AH-00 is displayed
because the unit cannot reach the requested temperature required for tank
disinfection.
INFORMATION
A malfunctioning booster heater will have an impact on energy metering and power
consumption control.
INFORMATION
The user interface will display how to reset an error code.
ERGA04~08EA + EHBH/X04+08EF
Daikin Altherma 3 R W
4P629085-1B – 2021.11