
DISPLAY
DESCRIPTION OF TEMPORARY FAULTS
CAUSE – Check/Solution
An installer is required for most checks and solu
tions.
Group
code
Specific
code
H.03
.05
Power supply voltage too low
Check the mains voltage
H.03
.54
Temporary flame loss
Shutdown due to the power supply voltage being too
low
ELECTRODE PROBLEM
Check the electrode electrical connections
Check the condition of the electrode
GAS SUPPLY
Check the gas inlet pressure
Check the gas valve calibration
FLUE GAS EXHAUST PIPE
Check the air intake and flue gas exhaust termi
nal
Check the power supply voltage
Tab.122 List of permanent faults (boiler stoppage, reset required)
DISPLAY
DESCRIPTION OF PERMANENT FAULTS (RESET)
CAUSE – Check/Solution
An installer is required for most checks and solu
tions.
Group
code
Specific
code
E.00
.04
Return temperature sensor disconnected
SENSOR/CONNECTION PROBLEM
Check the operation of the temperature sensor
Check the sensor/PCB connection
E.00
.05
Return temperature sensor short circuited
SENSOR/CONNECTION PROBLEM
Check the operation of the sensor
Check the sensor/PCB connection
E.00
.16
DHW tank temperature sensor not connected
SENSOR OPEN
Check the operation of the sensor
Check the sensor/PCB connection
When removing a domestic hot water tank, set
parameter DP150=1
E.00
.17
DHW tank temperature sensor short-circuited
SENSOR CLOSED
Check the operation of the sensor
Check the sensor/PCB connection
E.00
.20
The flue gas temperature sensor is not connected or
measured a temperature below the range
SENSOR OPEN
Check the operation of the sensor
Check the sensor/PCB connection
E.00
.21
The flue gas temperature sensor has short-circuited
or measured a temperature above the range
SENSOR CLOSED
Check the operation of the sensor
Check the sensor/PCB connection
E.01
.04
Flame loss detected five times in 24 hours
GAS SUPPLY
Check the gas supply pressure
Check the gas valve calibration
ELECTRODE PROBLEM
Check the electrode connection and wiring
Check the condition of the electrode
FLUE GAS PIPES
Check the air intake and flue gas exhaust pipes
EXCHANGER ON FLUE GAS SIDE BLOCKED
Check the cleanliness of the exchanger
MAINS VOLTAGE
Check the power supply voltage
E.01
.12
Temperature measured by return sensor greater than
flow temperature
SENSOR/CONNECTION PROBLEM
Check that the sensors are positioned the correct
way around
Check that the flow sensor is in the correct posi
tion Check the return temperature in the boiler
Check the operation of the sensors
11 Troubleshooting
en
7804841 - 02 - 20012022
INIDENS
205
Summary of Contents for INIDENS 20/24 MI
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 72: ...1 2 3 4 5 6 7 8 9 10 bg 13 72 INIDENS 7804841 02 20012022...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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...
Page 143: ...1 2 3 4 5 6 7 8 9 10 13 el 7804841 02 20012022 INIDENS 143...
Page 348: ...it 13 Smaltimento 348 INIDENS 7804841 02 20012022...
Page 349: ...13 Smaltimento it 7804841 02 20012022 INIDENS 349...
Page 350: ...it 13 Smaltimento 350 INIDENS 7804841 02 20012022...