84
Fault number
on the display
System characteristics
Cause
Measures
F.430
Connection of automation
modules not possible
Communication error
gateway
Check gateway module connecting
cable and power supply.
F.432
Burner locked out if fault con-
tinues to occur
Short circuit, fan speed
signal
Check ventilation air supply; clean
if necessary. Check the fan and
connecting cable.
F.433
Burner locked out if fault con-
tinues to occur
Lead break, fan speed
signal
Check ventilation air supply; clean
if necessary. Check the fan and
connecting cable.
F.440
Burner locked out
Short circuit gas pressure
switch on EM-EA1 exten-
sion (DIO electronics
module)
Check gas pressure switch con-
nection at EM-EA1 extension (DIO
electronics module).
F.441
Burner locked out
Lead break gas pressure
switch on EM-EA1 exten-
sion (DIO electronics
module)
Check gas pressure switch con-
nection at EM-EA1 extension (DIO
electronics module).
F.442
Burner locked out
Short circuit signal, flue
gas damper at EM-EA1
extension (DIO electronics
module)
Check flue gas damper connection
at EM-EA1 extension (DIO elec-
tronics module).
F.443
Burner locked out
Lead break signal, flue
gas damper connection at
EM-EA1 extension (DIO
electronics module)
Check flue gas damper connection
at EM-EA1 extension (DIO elec-
tronics module).
F.444
Burner locked out
Short circuit, LPG safety
valve (solenoid valve) sig-
nal at EM-EA1 extension
(DIO electronics module)
Check solenoid valve connection
at EM-EA1 extension (DIO elec-
tronics module).
F.445
Burner locked out
Lead break, LPG safety
valve (solenoid valve) sig-
nal at EM-EA1 extension
(DIO electronics module)
Check solenoid valve connection
at EM-EA1 extension (DIO elec-
tronics module).
F.446
Burner in a fault state
Deviation, flow tempera-
ture sensor/high limit safe-
ty cut-out, heat generator
Check the flow temperature sen-
sor/high limit safety cut-out. See
page 91.
Reset the appliance.
F.447
Burner in a fault state
Deviation, ionisation volt-
age signal
Check ionisation electrode.
Reset the appliance.
F.448
Burner in a fault state
Deviation, ionisation cur-
rent signal
Check ionisation electrode.
Reset the appliance.
F.449
Burner in a fault state
Error in scheduled pro-
gram run monitoring
Reset the appliance.
F.450
Burner in a fault state
Error in scheduled pro-
gram run monitoring
Reset the appliance.
F.451
Burner in a fault state
Error in scheduled pro-
gram run monitoring
Reset the appliance.
F.452
Burner in a fault state
Error in scheduled pro-
gram run monitoring
Reset the appliance.
F.453
Burner in a fault state
Synchronisation error, se-
quence
Reset the appliance.
F.454
Burner in a fault state
Incorrect software version Flash the correct software version
for the burner control unit (BCU).
Troubleshooting
Fault messages
(cont.)
6130884
Service
