Installation Instructions

Fault detection and elimination
Installation instructions VRC 470f 0020124645_00 39
10
10 Fault detection and elimination
10.1 Error messages
If a fault occurs in your heating system, an error mes-
sage will appear in the controller display instead of the
basic display. You can access the basic display again by
pressing function key "Back".
If the display remains dark or you cannot make any
change to the display by pressing the function keys or
control knob, there is a system error.
You can also read all current error messages under
menu option "Information/System status" (¬Sec-
tion10.2).
Display Meaning Connected appliances 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
Heat generator
communication
fault
Cylinder connection fault Cylinder
actoSTOR VIH RL
Cable defective, plug connection not correct
Solar gain sensor
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, temper-
ature sensor defective
Sensor T2 fault Fault in temperature sensor 2 Temperature sensor 2 Cable defective, plug connection not correct, temper-
ature sensor defective
Sensor T3 fault Fault in temperature sensor 3 Temperature sensor 3 Cable defective, plug connection not correct, temper-
ature sensor defective
Sensor T4 fault Fault in temperature sensor 4 Temperature sensor 4 Cable defective, plug connection not correct, temper-
ature sensor defective
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 fault Solar module VR 68/2 Collector sensor defective
Sensor SP1 fault Fault in cylinder sensor 1, first cyl-
inder
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
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
No radio communi-
cation
Radio communication fault
between VRC 470f and radio
receiver unit
VRC 470f radio controller
Radio receiver unit
Installation site unsuitable, controller defective, radio
receiver unit defective
Clean outside tem-
perature sensor
Fault on VR 21 outside tempera-
ture sensor/transmitter
VR 21 outside tempera-
ture sensor/transmitter
Solar cell of outside temp. sensor/transmitter dirty,
sensor/transmitter defective, installation site unsuita-
ble
Replace battery Radio controller fault VRC 470f radio controller Batteries in radio controller almost out of power
Tab. 10.1 Error messages