Moretti Forni T Serie Manual Instrucciones página 70

5.21.2 TROUBLESHOOTING T75G T97G
FAILURES
If the mains switch is pressed, the
LCD display does not turn on
If the mains switch is pressed, the
LCD display lights up and the
temperature detected is 699
The burner doesn't ignite and
is blocked
The burner ignites and is locked-out
after a few seconds
The burner turns on and after a
variable period the flame off alarm
buzzes
After installing, the oven reaches set
point or fails to keep the temperature
After some time, the oven stops to
maintain the temperature during
cooking
CAUSES
Grid voltage missing
Bad cable connection or plug
Blown fuse
LCD display card damaged
The thermocouple signal fails to
reach the electronic board
Thermocouple damaged
Gas tap closed
Ineffectiveness of the igniter
Inverted live and neutral
Ineffectiveness of the detector
Inefficiency of the detector in the
burner modulation range
Ineffective earth connection
Lack of gas
Wrong gas supply pressure
Reset for the wrong gas type
Economy mode included
Burner head clogged by dust
UK/25
SOLUTIONS
Check that the socket where the
appliance is connected is powered.
Place the connecting cable and plug.
Replace the fuse
Replace the LCD display
Ensure it is connected and the
compensated cable is intact and
connected to the thermocouple.
Replace thermocouple
Open the gas valve and switch on to
remove air from the tube
Ensure that the scintillator is at the
correct distance and is properly
connected; also ensure that the
ground cable is connected from the
flame control board to the gas valve.
Inverted live and neutral wires.
Ensure that the detector is at the
correct distance and that it is properly
connected
Ensure that the detector is not
deformed, and reset in the correct
distance if necessary
Check electrical connection of the
earth. Ensure an effective earth
connection
Ensure continuous gas supply.
Ensure that gas and supply pressure
are set as shown in TAB. 1 the
instruction manual (for your country)
Ensure that the oven gas supply
pressure and the outgoing pressure
from the gas valve is 0 mbar.
Disable the economy mode
Clean the burner head, remove the
cause of the dust inside and clean the
air filter