DIVAPROJECT F24
29
EN
cod. 3541F161 - Rev. 00 - 05/2014
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler anomaly, the 3 LEDS will indicate the fault code.
There are faults that cause shutdown: in order to restore operation it suffices to press RESET for 1 second (ref. 5 - fig. 1) or perform a RESET on the optional remote timer control if
this is installed. If the boiler fails to start, you must first resolve the fault indicated on the display.
Other faults cause temporary shutdowns which are automatically reset as soon as the value returns within the boiler's normal working range.
Table. 9 - List of faults (Legend Leds
= Off /
= On /
= Fast flash)
5. TECHNICAL DATA AND CHARACTERISTICS
Table. 10 - Legend - figures of cap. 5
Fault
Possible cause
Cure
Green
Yellow
Red
No burner ignition
No gas
Check the 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
Faulty gas valve
Check the gas valve and replace it if necessary
Ignition power too low
Adjust the ignition power
Flame present signal with burner off
Electrode fault
Check the ionisation electrode wiring
Card fault
Check the card
Air pressure switch (fails to close contacts
within 20 sec. of fan activation)
Air pressure switch contact open
Check the wiring
Faulty air pressure switch wiring
Check the fan
Faulty baffle
Check the pressure switch
Flue not correctly sized or obstructed
Replace the baffle
Low system pressure
System empty
Fill the system
Water pressure switch damaged or not connected
Check the sensor
Delivery sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
Exchanger protection activation.
(The LEDs flash alternately)
No system H
2
O circulation
Check the circulating pump
Air in system
Vent the system
Faulty card
Card failure
Replace the card
Card not electrically powered
No power
Check the power supply
Blown fuses
Replace fuses
5
Sealed chamber
37
Cold water inlet filter
7
Gas inlet
38
Flow switch
8
Domestic hot water outlet
39
Water flow limiter
9
Cold water inlet
42
DHW temperature sensor
10
System delivery
43
Air pressure switch
11
System return
44
Gas valve
14
Safety valve
49
Safety thermostat
16
Fan
56
Expansion tank
19
Combustion chamber
74
System filling cock
22
Burner
81
Ignition and detection electrode
27
Copper exchanger for heating and hot water
95
Diverter valve
28
Fume manifold
114
Water pressure switch
29
Fume outlet manifold
187
Fume baffle
32
Heating circulating pump
194
DHW exchanger
34
Heating temperature sensor
241
Automatic bypass
36
Automatic air vent
364
Condensate union
Summary of Contents for DIVAPROJECT F24
Page 85: ......
Page 86: ......
Page 87: ......
Page 88: ...FERROLI S p A Via Ritonda 78 a 37047 San Bonifacio Verona ITALY www ferroli it ...