0020244997_07 Installation and maintenance instructions 63
Code/meaning Possible cause Measure
LED actoSTOR Modul
actoSTOR communication
status
actoSTOR communication
status: Not connected, Con-
nection error, Connection
active
1. LED on: Communication OK.
2. LED flashing: Communication not OK.
3. LED off: No power supply.
Communication fault Communication fault between
the display and the PCB in the
electronics box
▶ Check: Cable/plug between the display and the PCB.
F Check programmes – Overview
Check programme Meaning
P.00 Purging The internal pump is cyclically actuated. The heating circuit and the domestic hot water circuit are ad-
aptively purged by automatically switching the circuits using the automatic air vent (the automatic air
vent's cap must be loose). The active circuit is shown in the display. Press once to start purging
the heating circuit. Press once to end the purge programme. Note: The purge programme runs for
7.5 min per circuit and then terminates. Purging the heating circuit: Prioritising diverter valve in heat-
ing position, actuation of internal pump for 9 cycles: 30 sec. on, 20 sec. off. Display: Active heating
circuit. Purging the domestic hot water circuit: After the above-mentioned cycles have run or the right-
hand selection button has been pressed again: Prioritising diverter valve in the domestic hot water
position, actuation of the internal pump as above. Display: Active domestic hot water circuit.
P.01 Maximum load After successful ignition, the product is operated at maximum heat input.
P.02 Minimum load After successful ignition, the product is operated at minimum heat input.
P.06 Filling mode The prioritising diverter valve is moved to the mid-position. The burner and pump are switched off (to
fill or drain the product).
G Function menu – Overview
Function menu Meaning
T.01 Internal pump The internal pump is switched on and off.
T.02 3-way valve The prioritising diverter valve is moved to the heating or domestic hot water position.
T.03 Fan The fan is switched on and off. The fan runs at maximum rotational speed.
T.04 Cylinder charging pump The cylinder charging pump is switched on and off.
T.05 Circulation pump The circulation pump is switched on and off.
T.06 External pump The external pump is switched on and off.
T.08 Burner The product starts up and switches to minimum load. The flow temperature is shown in the display.
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