FERROLI Divatop H C - Manual (Page 34)

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