Trouble Shooting - Bosch PRA3A SERIES Instruction Manual

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Trouble shooting

en
3Trouble shooting
Sometimes certain faults detected can be easily
T r o u b l e s h o o t i n g
resolved. Before calling the Technical Assistance
Service, bear in mind the following advice:
Fault
Electrical operation is gener-
ally impaired.
Automatic ignition is not work-
ing.
Automatic ignition is not work-
ing and the "‚ or "ƒ symbol
appears in the display.
The burner flame is uneven.
The gas does not appear to be
flowing correctly or there is no
gas being produced at all.
There is a smell of gas in the
kitchen.
The burner switches off as
soon as the control knob is
released.
"„, "..., "†, "‡, "ˆ, "‰,
"Š appear in the display.
The heat setting indicator in
the display continually devi-
ates from the heat setting that
was selected using the control
knob.
12
Possible cause
Defective circuit breaker.
The circuit breaker or one of the residual-current circuit
breakers has been triggered.
There may be remnants of food or cleaning agent resi-
dues trapped between the ignition plugs and the burners.
The burners are wet.
The burner caps have not been fitted correctly.
The appliance is not earthed or has not been connected
correctly, or the earth cable is damaged.
The electronics have overheated.
The burner parts have not been fitted correctly.
The burner slots are dirty.
The gas supply has been shut off by the intermediate
valves.
If gas is supplied by a gas cylinder, check that this is not
empty.
The gas tap is open.
The gas cylinder has not been connected correctly.
Gas may be leaking.
The control knob was not held down for long enough.
The burner slots are dirty.
Electronics fault.
Incorrect calibration of the electronics.
Remedial action
Check inside the fuse box to see if any of the fuses are
damaged. Replace if necessary.
Check the control panel to see if the automatic circuit
breaker or a fault current switch has failed.
The spaces in between the ignition plugs and the burners
must be clean.
Carefully dry the burner caps.
Make sure that the caps have been fitted correctly.
Contact an electrician.
Switch the burners off or use only the lowest heat setting
until the electronics have cooled down sufficiently.
Fit the burner parts to the relative burner correctly.
Clean the burner slots.
Open the intermediate valves.
Replace the gas cylinder.
Close the gas tap.
Make sure that the gas cylinder has been connected cor-
rectly.
Close the central tap in the gas line, ventilate the room
and immediately call an authorised installer, who can
inspect the gas system and issue an installation certifi-
cate. Do not use the appliance until you are sure that gas
is not leaking from the system or the appliance.
If the burner is switched on, hold the control knob down
for a few seconds longer.
Clean the burner slots.
Disconnect the hob from the power supply. Wait a few
seconds and then reconnect it. If the indicator remains lit,
contact the after-sales service.
Carry out the calibration in accordance with the installa-
tion instructions.

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