0020193968_05 ecoTEC exclusive Installation and maintenance instructions
57
Code
Parameter
Possible causes
F.81
Fault: cylinder charging pump
Only in conjunction with F.91
Cylinder is not fully charged after specified time.
–
Check cylinder charging sensor and cylinder sensor
–
Air in the
actoSTOR
pump
–
Inspect cable harness for pump
–
Check the impeller sensor and/or limiter in the product
–
Prioritising diverter valve defective
–
Secondary heat exchanger blocked
–
Pump defective
F.82
Fault: Ext. current anode
External current anode not connected:
–
X43 edge connector with bridge missing from the PCB
External current anode connected:
–
Power supply to the external current anode was interrupted
–
Cable between PCB and external current anode defective
–
External current anode defective
F.83
Fault: NTC temp. gradient
When the burner starts, the temperature change registered at the flow
and/or return temperature sensor is non-existent or too small.
–
Insufficient water in product
–
Flow or return temperature sensor not in correct position at pipe
F.84
Fault: NTC temp. diff. implausible
Flow and return temperature sensors returning implausible values.
–
Flow and return temperature sensors have been inverted
–
Flow and return temperature sensors have not been correctly in-
stalled
F.85
Fault: NTCs fitted incorrectly
The flow and/or return temperature sensors have been installed on the
same pipe/incorrect pipe
F.90
Fault: Communication
Check the cable harness from the product to the
actoSTOR
module
(PEBus).
If the product is to be operated without an
actoSTOR
module, set
D.092
= 0.
F.94
Fault: Vortex and differential pressure
Check: Pump (function), cable harness, plug, sensors.
LED
actoSTOR
module
actoSTOR electronics status
LED on: Communication OK
LED flashing: Communication not OK
LED off: No power supply
Commu-
nication
fault
Communication fault
Communication fault between display and PCB in the electronics box
F
Check programmes
–
Overview
Check programme
Meaning
P.00 Purging
The internal pump is cyclically actuated. The heating circuit and domestic hot water circuit are purged
adaptively by automatically switching the circuits via the automatic air vent (the cap for the automatic
air vent is loosened at the factory).
DHW circuit active
or
Heating circuit active
display.
once:
Start purging.
once (
Cancel
): End purge programme.
Note:
The duration of the purge programme
is displayed using a countdown. The programme then ends.
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.04 Reset eGas
Calling up the programme deletes all of the CH offsets (central heating) that have been saved from
previous calibration processes. The products then starts by fully calibrating the combustion regulation
(status S.09).
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).
P.14 Reset eGas
Calling up the programme deletes all of the DHW offsets that have been saved from previous calibra-
tion processes. The products then starts by fully calibrating the combustion regulation (status
S.19
).
