
10.4.5 Replacing the PCB
After replacing the main board, power up the boiler electrically.
Parameters CN1 and CN2 will automatically appear on the display.
Modify the parameters with the data shown on the serial number plate:
Press the F4 key to store the set value.
Use the keys F2 - F3 to modify the parameters;
Press the F4 key to store the set value.
Parameters CN1 and CN2 can also be accessed from the main menu to
carry out the replacement. Press the two external keys F1 - F4 on the
control panel simultaneously for about 40 seconds.
Caution
Please note that resetting the CN1 and CN2 settings with data on
the data plate deletes any previous setting. In case of a gas
change, for example, remember to set the correct calibration of
the gas valve and the fan speed.
11 Troubleshooting
11.1 Temporary and permanent faults
There are two types of notices displayed: temporary or permanent. The first notice shown on the display is a letter followed by a
two-digit number. The letter indicates the type of fault: Temporary (A or H) or permanent (E). The number indicates the group in
which the fault that has occurred is classified according to its impact on safe and reliable operation. The second notice consists
of a two-digit number that indicates the type of fault which has occurred (see the following fault tables).
TEMPORARY FAULT (A/H.x.x.)
A temporary fault is shown on the display by the letter “A” or “H” followed by a number (group). A temporary fault is a type of
fault that does not cause a permanent stoppage of the boiler. It has the following characteristics:
A: The appliance continues to operate. It disappears as soon as the cause has been resolved.
H: Disappears when the error condition is removed, in some cases even after 10 minutes.
PERMANENT FAULT (E.x.x)
A permanent fault is shown on the display by the letter "E" followed by a number (group). Press the RESET key for 1 second. If
faults are shown frequently, contact a qualified technician.
E: Stoppage, RESET required.
11.2 Error codes
Tab.121 List of temporary faults
DISPLAY
DESCRIPTION OF TEMPORARY FAULTS
CAUSE – Check/Solution
An installer is required for most checks and solu
tions.
Group
code
Specific
code
H.00
.42
Pressure sensor open/faulty
SENSOR/CONNECTION PROBLEM
Check the operation of the pressure sensor
Check the sensor/PCB connection
H.01
.00
Temporary communication failure in the PCB
The error is resolved automatically
H.01
.05
Maximum temperature difference value between flow
and return reached.
INSUFFICIENT CIRCULATION
Check the boiler/installation circulation
Activate a manual venting cycle
Check the installation pressure
OTHER CAUSES
Check the cleanliness of the exchanger
Check the operation of the temperature sensors
Check the temperature sensor connection
Fig.138
BO-0000271
F1
F2
F3
F4
11 Troubleshooting
en
7804841 - 02 - 20012022
INIDENS
203
Содержание INIDENS 20/24 MI
Страница 5: ...1 2 3 4 5 1 2 3 4 1 2 3 mm EN 60335 1 0 8 1 5 2 1 bg 7804841 02 20012022 INIDENS 5...
Страница 6: ...De Dietrich 1 3 1 3 1 1 3 2 1 3 3 2 2 1 2 2 bg 2 6 INIDENS 7804841 02 20012022...
Страница 24: ...13 BO 0000071 5 1 2 3 4 LIFT 10 6 7 8 9 b a LIFT 6 6 1 6 2 bg 6 24 INIDENS 7804841 02 20012022...
Страница 26: ...16 BO 0000279 40 6 3 30 Nm 6 3 1 6 3 2 1 2 1 2 bg 6 26 INIDENS 7804841 02 20012022...
Страница 27: ...6 3 3 NTC 3 4 M2 NTC 35 C 60 C DP200 1 DP004 DP160 B C D F G 6 bg 7804841 02 20012022 INIDENS 27...
Страница 30: ...B33 C43P C43 C83 6 5 2 1 19 BO 0000031 6 5 3 A B 90 45 360 B 90 bg 6 30 INIDENS 7804841 02 20012022...
Страница 42: ...7 7 1 28 7 2 1 2 3 4 5 1 0 1 5 6 7 8 9 7 3 60 mbar 6 kPa bg 7 42 INIDENS 7804841 02 20012022...
Страница 60: ...10 3 3 10 3 4 CO2 O2 10 3 5 10 3 6 1 2 3 4 5 41 BO 0000208 3 A 2 4 1 5 bg 10 60 INIDENS 7804841 02 20012022...
Страница 71: ...A 02 55 A 02 76 Open Therm 254 12 12 1 1 2 3 4 5 6 7 8 12 2 13 13 1 12 bg 7804841 02 20012022 INIDENS 71...
Страница 72: ...1 2 3 4 5 6 7 8 9 10 bg 13 72 INIDENS 7804841 02 20012022...
Страница 76: ...1 2 3 4 5 1 2 3 4 1 2 3 mm EN 60335 1 0 8 bar 1 5 2 bar el 1 76 INIDENS 7804841 02 20012022...
Страница 77: ...De Dietrich 1 3 1 3 1 1 3 2 1 3 3 2 2 1 2 2 2 el 7804841 02 20012022 INIDENS 77...
Страница 95: ...59 BO 0000071 5 1 2 3 4 LIFT 10 6 7 8 9 b a LIFT 6 6 1 6 2 6 el 7804841 02 20012022 INIDENS 95...
Страница 97: ...62 B BO 0000279 111 6 3 30 Nm 6 3 1 6 3 2 1 2 1 2 6 el 7804841 02 20012022 INIDENS 97...
Страница 98: ...6 3 3 NTC 3 4 M2 NTC 35 C 60 C DP200 1 DP004 DP160 A B C D E F G el 6 98 INIDENS 7804841 02 20012022...
Страница 101: ...B33 C43P C43 C83 6 5 2 1 65 BO 0000031 6 5 3 A B 90 45 360 B 90 6 el 7804841 02 20012022 INIDENS 101...
Страница 103: ...67 BO 0000233 16 mm 6 5 5 68 BO 0000054 L L L L L L L L L L 6 5 6 C 10 3 EN 13384 2 6 el 7804841 02 20012022 INIDENS 103...
Страница 106: ...0 1 5 cm 70 BO 0000020 0 1 6 5 8 71 L 1 L L 2 BO 0000055 L 6 5 9 L1 L2 L L1 L2 72 el 6 106 INIDENS 7804841 02 20012022...
Страница 113: ...7 7 1 28 7 2 1 2 3 4 5 1 0 1 5 bar 6 7 8 9 7 3 60 mbar 6 kPa 7 el 7804841 02 20012022 INIDENS 113...
Страница 131: ...10 3 6 1 2 3 4 5 87 BO 0000208 3 A 2 4 1 5 10 el 7804841 02 20012022 INIDENS 131...
Страница 143: ...1 2 3 4 5 6 7 8 9 10 13 el 7804841 02 20012022 INIDENS 143...
Страница 348: ...it 13 Smaltimento 348 INIDENS 7804841 02 20012022...
Страница 349: ...13 Smaltimento it 7804841 02 20012022 INIDENS 349...
Страница 350: ...it 13 Smaltimento 350 INIDENS 7804841 02 20012022...