Operation Of The System - Electrolux Hob Service Manual

4.2 OPERATION OF THE SYSTEM

When the user wishes to light one of the burners using the touch control on the burner control
panel, the main safety valve VS (Fig. 6) opens (unless the valve is already open and feeding a
different burner). The corresponding modulation valve VM opens and the spark generator actions
the spark plug which ignites the burner.
The burner is always ignited at maximum setting. At this point, the flame detection procedure takes
place. If the burner has failed to ignite, the ignition system makes two more attempts.
On each burner, the level of the flame can be adjusted using keys
setting is displayed by the flame level LEDs.
In the event of problems with a burner (e.g. if the burner is wet etc.) and the main switch is set to
ON, it is possible to disable only the valve (VM) relative to that burner, using the touch control
This interrupts the supply of gas only to the single burner, while the remaining burners continue to
operate normally.
If the power supply is switched off or if the electronic control system detects a malfunction (e.g. a
problem with the electrical connections), the main valve VS and the corresponding modulation
valve VM intervene to cut off the gas supply to the burners.
In all cases, therefore, the gas supply to the burners is controlled by at last two safety valves. After
a power failure, the system remains disabled, which is indicated by the flashing of all the LEDs in
the hob control zone. To restore the burners to normal operation after a power failure (LEDs
flashing), it is necessary to wait at least 60 seconds and then press buttons
simultaneously and then button
The presence of residual heat on and around the burners is indicated by the corresponding LEDs
positioned on the hob control panels.
If the temperature in the electronic section should exceed about 95°C, in order to prevent possible
damage, the system reduces all the burners to the lowest setting; if the temperature should exceed
105°C, then all the safety valves that control the supply to the burners are closed and an error
code is displayed.
SOI 04.05 FV
, after which the burner can be used normally.
14/57
or while the flame
and
599 36 62-62
.
,