Troubleshooting - Ferroli MACH Instrucciones De Uso

MACH

3.4 Troubleshooting

Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, the display lights up indicating
the fault code and the module number.
There are faults that cause permanent shutdowns (indicated with the symbol OK to reset): to restore operation, simply
press the OK button for 1 second or via the RESET of the remote timer control (optional) if installed; if the boiler does
not restart, the fault must be eliminated first.
Other faults cause temporary shutdowns which are automatically reset as soon as the value returns within the boiler's
normal working range.
Table of faults
Table 6- List of faults
Fault
Fault
code
01 No burner ignition
Flame present signal with
02
burner off
Overtemperature protec-
03
tion intervention
Fan protection interven-
05
tion
No flame after ignition
06 phase (6 times in 4 minu-
tes)
07 High fume temperature
Heating sensor 1 (flow)
overtemperature indica-
08 tion
(Viewable only in His-
tory Menu)
Return sensor overtempe-
rature indication
09
(Viewable only in His-
tory Menu)
10 Flow sensor 1 fault
EN
Possible cause
No gas
Ignition/detection electrode fault
Faulty gas valve
Insufficient gas supply pressure
Trap blocked
Card fault
Electrode fault
Card fault
Heating sensor damaged
No water circulation in the system
Air in the system
Fault F15 generated for 1 hour (consecu-
tive)
Ionization electrode fault
Flame unstable
Gas valve Offset fault
air/fume ducts obstructed
Trap blocked
Exchanger dirty
Exchanger deteriorated
Sensor does not indicate the correct tem-
perature
insufficient system water circulation
insufficient system water circulation
Sensor damaged
Wiring shorted
Wiring disconnected
cod. 3541V120 - Rev 00 - 09/2021
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 the gas valve and replace it if necessary
Check the gas supply pressure
Check the trap and clean it if necessary
Check the card
Check the ionization electrode wiring
Check the card
Check the correct positioning and operation of
the heating sensor
Check the circulating pump
Vent the system
See fault F15
Check the position of the ionization electrode
and replace it if necessary
Check the burner
Check the Offset adjustment at minimum power
Remove the obstruction from the flue, fume
extraction ducts, air inlet and terminals
Check the trap and clean it if necessary
Clean the exchanger
Check the integrity of exchanger
Check the fume sensor or replace it
check water circulation
check water circulation
Check the wiring or replace the sensor
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