DeDietrich 24 Installation And Service Manual page 206

en
11 Troubleshooting
DISPLAY
DESCRIPTION OF PERMANENT FAULTS (RESET)
Group Specific
code code
E.01 .17 No water circulation (permanent)
E.01 .20 Maximum flue gas temperature reached
Total stoppage of the boiler (antifreeze function not
E.02 .13
active)
E.02 .17 Permanent communication failure in the PCB
E.02 .35 Critical safety device disconnected
Minimum pressure not reached after 6 minutes of au­
E.02 .39
tomatic filling
E.02 .47 Connection to external device unsuccessful
E.04 .01 Flow temperature sensor short circuited
E.04 .02 Flow temperature sensor disconnected
Maximum flow temperature exceeded or flow temper­
E.04 .03
ature sensor short circuited
E.04 .08 Maximum safe temperature value reached
E.04 .10 Burner failed to ignite after 4 attempts
E.04 .12 Ignition failure for monitoring parasitic flame
206 INIDENS
CAUSE – Check/Solution
An installer is required for most checks and solu­
tions.
INSUFFICIENT CIRCULATION
Check the installation pressure
Activate a manual venting cycle
Check the operation of the pump
Check the boiler/installation circulation
SENSOR ERROR
Check the operation of the temperature sensors
Check the temperature sensor connection
EXCHANGER ON FLUE GAS SIDE BLOCKED
Check the cleanliness of the exchanger
SIGNAL INDICATING BLOCKING INPUT
Contact X15 open, check connected devices
Parameter configuration error: Check setting
AP001
MAIN PCB ERROR
Check for any electromagnetic interference
Contact a qualified professional
COMMUNICATION FAULT
Start the auto-detect function (parameter AD)
Check the devices connected to contact X9
AUTOMATIC FILLING ERROR
Check automatic filling is working
ELECTRICAL CONNECTION ERROR
Start the auto-detect function (parameter AD))
Check the electrical connections of external devi­
ces.
SENSOR/CONNECTION PROBLEM
Check the sensor/PCB connection
Check the operation of the sensor
SENSOR/CONNECTION PROBLEM
Check the sensor/PCB connection
Check the operation of the sensor
INSUFFICIENT CIRCULATION
Check the boiler/installation circulation
Activate a manual venting cycle
Check the operation of the sensors
INSUFFICIENT CIRCULATION
Check the pressure in the installation
Switch on the manual degassing function
Check that the pump is working
Check the circulation in the boiler/installation
OTHER POSSIBLE CAUSES
Check the safety thermostat connection
Check that the safety thermostat is working cor­
rectly
GAS SUPPLY
Check the gas supply pressure
Check the gas valve electrical connection
Check the gas valve calibration
Check the operation of the gas valve
ELECTRODE PROBLEM
Check the electrode electrical connections
Check the electrode condition
OTHER CAUSES
Check the operation of the fan
Check the condition of the flue gas exhaust
(blockages)
Check the ground circuit
Check the power supply voltage
Check the electrode conditions
7804841 - 02 - 20012022