Nordcap MORETTI T75G Mode D'emploi page 65

5.21.3 TROUBLESHOOTING TT98G
FAILURES
If the start buttonis pressed, the
LCD display will not turn on
If the start button is pressed, the
LCD display turns on and off
If the start button is pressed, the
rear cooling fan will not start
If the oven is STARTED
the LCD control unit seems to
work properly but the engine
fans are not turned on
Both left and right burners are
turned on but are blocked
The burner doesn't ignite and
is blocked or permanent block
CAUSES
Emergency push button enabled
Grid voltage missing
Cable connection or bad plug
Blown fuses (F1, F2)
LCD display card damaged
Main contactor damaged
Wrong relay slave board
connections
Pasted relay slave board TIMER
Damaged condenser
Relay slave board FAN damaged
Gas tap closed
Ineffectiveness of the igniter
UK/28
SOLUTIONS
Disconnect the emergency stop button
Check that the socket where the appliance
is connected is powered.
Place the connecting cable and plug.
Check and replace fuses
Replace the LCD card
Check main contactor for any defect
Ensure that the relay slave board terminal
connectors on the opposite side of the
gearmotor are firmly grafted in the socket
and in the right position
Check relay condition on the slave board ,
opposite side of the gear motor. Replace
electronic board if necessary.
Replace the condenser
Check relay condition on the slave board
on the opposite side of the gear motor.
Replace electronic board if necessary.
Open the gas tap and restart the oven.
Start several times to remove air from
tube.
NOTE: Each burner automatically
executes 3 start cycles before displaying
the alarm BURNER LOCK .
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.
NOTE: Each burner automatically
executes 3 start cycles before displaying
the alarm BURNER LOCK.
NOTE: In case of "permanent lock"
switch off and restart the equipment to
release the flame control from the
permanent blocking state