Ariston M1 10L FF Service Manual page 49

fan starts
02
pre-purging,
while there's
03
no sound of
ignition
04
05
06
07
08
09
99
01
02
Blank screen
once ignition
03
99
01
Fault of
02
temperature
03
sensor
99
"E3"
01
Display
overheat
protection "E3"
02
03
04
05
Technical Manual for DGI
Bad contact between ignition needle and
ignition cathode
Bad contact between ignition needle and
main control board
Too much carbon deposition on ignition
needle
Wet ignition needle
Ablated ignition needle
Too much carbon deposition on ignition
cathode
Igniter is damaged
Main control board is damaged
Other causes
Distance between ignition needle and flame
row is too small
Contact distance between high voltage wire
of ignition needle and signal wire of display
screen
Discharging does not take place on top of
ignition needle, but on back side of igniter
Other causes
Bad contact of wiring of temperature sensor
Temperature sensor is damaged
Fault of main control board
others
Activation of overheat protection device due
to combustion caused by non-conforming
gas source
Activation of overheat protection device due
to combustion caused by excessive gas
pressure
Activation of overheat
controller due to improper operation like
improper adjustment of mixing water valve
Overheat temperature
damaged
Bad connection of overheat temperature
controller
temperature
controller is
- 49 -
Re-connect
Re-connect
Clean or replace
Clean or replace
Clean or replace
Replace
Replace
Replace
Other causes
Turn on a little
Adjust distance between
wiring harness
Replace igniter
Other causes
Re-adjust
Replace
Replace
others
Explain and give directives
Explain and give directives
Explain and give directives
Replace
Adjust