Technical data

Fault recognition and clearance
Installation instructions VRC 470 0020116690_00
41
10
10.2 List of errors
Menu ¬ Information ¬ System status ¬ Status [Fault]
If there is a fault, the status "Fault" is displayed. In this
case, the right function key has the function "Display".
Press the right function key to view the list of error mes-
sages.
i
Not all error messages in the list appear auto-
matically on the display.
Display Meaning Connected units Cause
Heat generator fault Fault in boiler Boiler See boiler instructions
Heat generator
communication fault
Boiler connection fault Boiler Cable defective, plug connection not correct
Clean outside sensor External sensor External sensor dirty
Communication fault
actoSTOR
Cylinder connection fault Cylinder
actoSTOR VIH RL
Cable defective, plug connection not correct
External current
anode fault
External current anode fault
Cylinder
Cylinder
actoSTOR VIH RL
Cable defective, plug connection not correct,
external current anode defective
Sensor T1 fault Fault in temperature sensor 1 Temperature sensor 1 Cable defective, plug connection not correct,
temperature sensor defective
Sensor T2 fault Fault in temperature sensor 2 Temperature sensor 2 Cable defective, plug connection not correct,
temperature sensor defective
Sensor T3 fault Fault in temperature sensor 3 Temperature sensor 3 Cable defective, plug connection not correct,
temperature sensor defective
Sensor T4 fault Fault in temperature sensor 4 Temperature sensor 4 Cable defective, plug connection not correct,
temperature sensor defective
Heat exchanger
calcified
Heat exchanger of the boiler is
calcified
Boiler See boiler instructions
VR 68/2
communication fault
Solar module VR 68/2 connection
fault
Solar module VR 68/2 Cable defective, plug connection not correct
Sensor KOL fault Collector sensor Solar module VR 68/2 Collector sensor defective
Sensor SP1 fault Fault in cylinder sensor 1, first
cylinder
Solar module VR 68/2 Cable defective, plug connection not correct,
cylinder sensor defective
Sensor SP2 fault Fault in cylinder sensor 2, first
cylinder
Solar module VR 68/2 Cable defective, plug connection not correct,
cylinder sensor defective
Sensor TD1 fault Fault in cylinder sensor 1, second
cylinder
Solar module VR 68/2 Cable defective, plug connection not correct,
cylinder sensor defective
Sensor TD2 fault Fault in cylinder sensor 2, second
cylinder
Solar module VR 68/2 Cable defective, plug connection not correct,
cylinder sensor defective
Solar gain sensor Solar gain sensor fault Solar gain sensor Cable defective, plug connection not correct,
solargain sensor defective
VR 61/2
communication fault
Mixer module VR 61/2 connection
fault
Mixer module VR 61/2 Cable defective, plug connection not correct
Sensor VF2 fault Fault in flow sensor VF2 Mixer module VR 61/2 Cable defective, plug connection not correct,
flowsensor defective
Tab. 10.2 List of error messages
10.3 Restore factory settings
You can reset the settings to the factory settings
(¬operating instructions).