Ferroli DIVAtop HC 24 Instructions D'utilisation, D'installation Et D'entretien page 34

Table of faults
Table. 2
Code
Fault Possible cause
fault
No gas
A01 No burner ignition
Ignition/detection electrode fault
Defective gas valve
Ignition power too low
Electrode fault
Flame present signal with
A02
burner off
Card trouble
Heating sensor damaged
Over-temperature
toA03
protection trips No water circulation in the system
Air in the system
Fume thermostat Fume thermostat contact open
activated (after activation of
Wiring disconnected
F04 the fume thermostat, boiler
Flue not correctly sized or
operation is prevented for
obstructed
20 minutes)
Low pressure in the gas system
No flame after the ignition
A06
phase
Burner minimum pressure setting
Sensor damaged
F10 Delivery 1 sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F11 Tap water sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F14 Delivery 2 sensor fault Wiring shorted
Wiring disconnected
Supply voltage under
F34 Electric mains trouble
170V.
F35 Irregular mains frequency Electric mains trouble
Pressure too low
Incorrect system water
F37
pressure
Sensor damaged
Probe damaged or wiring shorted
F39 External sensor fault
Sensor disconnected after activat-
ing the sliding temperature
Incorrect system water
F40 Pressure too high
pressure
A41 Sensor positioning Delivery sensor detached from pipe
F42 Heating sensor fault Sensor damaged
No system H
F43 Exchanger protection trips.
Air in the system
System water pressure
F47 Wiring disconnected
sensor fault
F50 Modureg fault Wiring disconnected
34 EN
Recommended cure
Check the regular gas flow to the
boiler and that the air has been
eliminated from the pipes
Check the wiring of the electrode
and that it is correctly positioned
and free of any deposits
Check and change the gas valve
Adjust the ignition power
Check the ionisation electrode
wiring
Check the card
Check the correct positioning and
operation of the heating sensor
Check the circulator
Vent the system
Check the thermostat
Check the wiring
Change the flue
Check the gas pressure
Check the pressures
Check the wiring or replace the
sensor
Check the wiring or replace the
sensor
Check the wiring or replace the
sensor
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or change the
sensor
Reconnect the external sensor or
disable the sliding temperature
Check the system
Check the safety valve
Check the expansion tank
Check the correct positioning and
operation of the heating sensor
Change the sensor
O circulation
Check the circulator
2
Vent the system
Check the wiring
Check the wiring
cod. 3540S840 - 02/2010 (Rev. 00)
DIVAtop HC
5. TECHNICAL DATA AND CHARACTERISTICS
5.1 General view and main components
126
78
278
81
20
21
22
95 10 209
fig. 22 - General view DIVAtop HC 24
78
278
81
20
21
22
95 10 209
fig. 23 - General view DIVAtop HC 32
7 Gas inlet
10 System delivery
11 System return
14 Safety valve
19 Combustion chamber
20 Burner assembly
21 Main nozzle
22 Burner
26 Combustion chamber insulation
27 Copper exchanger
32 Heating circulating pump
36 Automatic air vent
44 Gas valve
56 Expansion tank
74 System filling cock
78 Anti-backflow device
81 Ignition and detection electrode
95 Diverter valve
126 Fume thermostat
145 Pressure gauge
209 Hot water tank delivery
210 Hot water tank return
246 Pressure transducer
278 Double sensor (Safety + Heating)
56
27
19
26
14
36
246
145
44 7 210 74 11 32
126
56
27
19
26
14
36
246
145
44 7 210 74 11 32