Error Messages - DeDietrich GTU C 330 User Manual

8.2 Error messages

8.2.1 B3 control panel
In the event of a fault, the display may show the following messages:
Message
AL 50 Boiler sensor
AL 52 Domestic hot water sensor
AL td
Titanium anode
AL tc
8.2.2 K3 control panel
No error messages displayed.
See DIEMATIC-m3 control panel display.
16/01/2020 - 300017846-03
Faults Probable causes
The sensor circuit has been broken or
short circuited.
The sensor is cut
The titanium anode is in open circuit or
the tank is empty.
A short circuit has occurred on the
titanium anode or connection
reversed.
The installation is stopped.
Advise the installer.
The installation continues to operate but domestic hot
water heating is no longer covered.
Advise the installer.
Production of domestic hot water is stopped. This may be
reactivated for 24 hours by disconnecting and
reconnecting the power supply to the boiler.
Advise the installer.
GTU C 330
8. Troubleshooting
Action
19