DIVAcondens F24/F28
4.3 Maintenance
Periodical inspection
To ensure proper operation of the unit over time, have qualified personnel carry out a
yearly inspection, providing for the following checks:
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fig. 16 - Electrode positioning
4.4 Troubleshooting
Diagnostics
F
Table of faults
Table. 8 - List of faults
Fault
Faults
code
A01
A02
A03
F04
Card parameter fault
A
Possible cause
Cure
Check the regular gas flow to
No gas
trode and that it is correctly
fault
positioned and free of any
deposits
Check the gas valve and
Faulty gas valve
replace it if necessary
Check the ionisation electrode
Electrode fault
wiring
Card fault
Check the card
Check the correct positioning
Heating sensor damaged
and operation of the heating
sensor
No water circulation in the
Check the circulating pump
system
tion
tion
Check the card parameter and
ting
modify it if necessary
cod. 3541G922 - Rev. 01 - 04/2018
Fault
Faults
code
F05
to activation of the fume thermostat
A06
No flame after the ignition phase
F07
A09
Gas valve fault
F10
F11
A15
A16
Gas valve fault
A23
Card parameter fault
A24
Card parameter fault
F34
F35
Faulty mains frequency
F37
F43
F50
Controller DBM32 fault
F51
Controller DBM32 fault
Possible cause
Cure
open
Faulty air pressure switch
Check the wiring
wiring
rectly sized
Clean the flues
Faulty water circulation
Low pressure in the gas
Check the gas pressure
system
Burner minimum pressure
Check the gas pressures
setting
open
Faulty air pressure switch
Check the wiring
wiring
rectly sized
Clean the flues
Wiring disconnected
Check the wiring
Check the gas valve and
Faulty gas valve
replace it if necessary
Check the wiring or replace the
Wiring shorted
sensor
Wiring disconnected
Check the wiring or replace the
Wiring shorted
sensor
Wiring disconnected
Fault F05 generated 5
F05
times in the last 24 hours
Wiring disconnected
Check the wiring
Check the gas valve and
Faulty gas valve
replace it if necessary
Check the card parameter and
ting
modify it if necessary
Check the card parameter and
ting
modify it if necessary
Pressure too low
Fill the system
Water pressure switch
Check the sensor
damaged or not connected
No system H
Check the circulating pump
2
Check the earth connection and
Controller DBM32 internal
error
Check the earth connection and
Controller DBM32 internal
error
EN
33