Ferroli MACH Instrucciones De Uso página 342

Fault
Fault
code
11 Return sensor fault
12 DHW sensor fault
13 Card parameter fault
14 Flow sensor 2 fault
15 Fan fault
RESET button on contro-
26
ller on gas valve, fault.
Supply voltage under
34
170V
35 Faulty mains frequency
Pressure switch contact
37
open
39 External probe fault
41 Sensor positioning
42 Heating sensor fault
Cascade temperature
50
sensor fault
52 Heating sensor fault
61 Controller fault
No communication bet-
62 ween controller and gas
valve
63
64
Controller fault
65
66
No communication bet-
99 ween controller and dis-
play
342
Possible cause
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Wrong card parameter setting
Sensor damaged
Wiring shorted
Wiring disconnected
No 230V power supply
Tachometric signal interrupted
Fan damaged
RESET button on controller fitted on gas
valve blocked or faulty.
Electric mains trouble
Electric mains trouble
Low system pressure
Probe damaged or wiring shorted
Probe disconnected after activating the sli-
ding temperature
Flow sensor disconnected from pipe
Sensor damaged
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Controller internal error
Controller not connected
Valve damaged
Controller internal error
Wiring disconnected
cod. 3541V120 - Rev 00 - 09/2021
Cure
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the card parameter and modify it if
necessary.
Check the wiring or replace the sensor
Check the 3-pin connector wiring
Check the 5-pin connector wiring
Check the fan
Check the RESET button and replace the con-
troller on the gas valve if necessary.
Check the electrical system
Check the electrical system
Check the system water pressure
Check the wiring or replace the sensor
Reconnect the external probe or disable the sli-
ding temperature
Check the correct positioning and operation of
the heating sensor
Replace the sensor
Check the wiring or replace the sensor
Replace the sensor
Check the ground connection and replace the
controller if necessary.
Connect the controller to the gas valve
Replace the valve
Check the ground connection and replace the
controller if necessary.
Check the wiring of the 6 wires between contro-
ller and display
MACH
EN