Deletion Of Sensors From The Memory In The Pcb; Deleting The Iobl 3Wv Modules From The Memory In The Pcb - DeDietrich Innovens MCA 15 Installation And Service Manual

MCA 15 - MCA 25 MCA 25/28 MI
Faults Code Cause
5 RESET:ON/OFF D32
TA-S SHORT-CIR D37
TA-S DISCONNEC D38
29/04/2010 - 300022146-001-B
Description
of the
error
SCU 5 resets done in less than an hour
Switch the boiler off and switch back on
4
SCU The Titan Active System® is short-circuited
Check that the connection cable between the SCU PCB and the anode is not short-
4
circuited
Check that the anode is not short-circuited
4
Remarks:
Domestic hot water production has stopped but can nonetheless be restarted using key
r.
The tank is no longer protected.
If: A tank without Titan Active System® is connected to the boiler: Check that the Titan
Active System® simulation connector (delivered with package AD212) is fitted to the
sensor card.
SCU The Titan Active System® is on an open circuit
Check that the connection cable between the SCU PCB and the anode is not severed
4
Check that the anode is not broken
4
Remarks:
Domestic hot water production has stopped but can nonetheless be restarted using key
r.
The tank is no longer protected.
If: A tank without Titan Active System® is connected to the boiler: Check that the Titan
Active System® simulation connector (delivered with package AD212) is fitted to the
sensor card.
8.3.1.
The configuration of the sensors is memorised by the SCU PCB. If a
sensor error appears whilst the corresponding sensor is not
connected or has been voluntarily removed, please delete the sensor
from the memory in the SCU PCB.
4 Press key ? repeatedly until "Do you want to delete this
4 Select YES by turning the rotary button and press to confirm.
8.3.2.
The configuration of the IOBL 3WV modules is memorised by the
SCU PCB. If a IOBL.3WV B DEF or IOBL.3WV C DEF error appears
after voluntary deletion of a 3WV module, please delete the module
from the memory in the SCU PCB.
4 Press key ? repeatedly until "Do you want to delete this
4 Select YES by turning the rotary button and press to confirm.
Checking / solution
Deletion of sensors from the memory in the
PCB
sensor?" is displayed.
Deleting the IOBL 3WV modules from the
memory in the PCB
module?" is displayed.
8. Troubleshooting
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