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12
Leak test and function test
: Risk of explosion!
Avoid sparking. Do not use an open flame.
Perform the leak test only with a suitable leakage spray.
In the event of a gas leak
Shut off the gas supply.
Ensure that the room affected is well ventilated.
Check the gas and valve connections again. Repeat the leak
test.
The leak test must be performed by two people, in accordance
with the following instructions.
Check the gas connection
1. Open the gas supply.
2. Spray the gas connection with a leakage spray.
If small bubbles or foam form, indicating a gas leak, follow the
instructions in the section entitled "In the event of a gas leak".
Checking the burner nozzles
1. Open the gas supply.
Carry out the leak test separately for each nozzle.
2. Carefully close the hole in the burner nozzle to be checked
using your finger or a suitable device.
3. Spray the nozzle with a leakage spray.
4. Press the function selector and turn it anti-clockwise. This
supplies the nozzle with gas.
If small bubbles or foam form, indicating a gas leak, follow the
instructions in the section entitled "In the event of a gas leak".
Checking the bypass valves
1. Open the gas supply.
Carry out the leak test separately for each bypass screw.
2. Carefully close the hole in the burner nozzle to be checked
using your finger or a suitable device.
3. Spray the nozzle in the burner to be checked with a leakage
spray.
4. Push the control knob and turn it anti-clockwise. This supplies
the nozzle with gas.
If small bubbles or foam form, indicating a gas leak, follow the
instructions in the section entitled "In the event of a gas leak".
Correct flame formation
Burner
The flame behaviour and temperature development must be
checked for each burner after the appliance is converted to a
different gas type.
In the event of a problem, compare the nozzle values to the
values in the table.
Only for models without safety pilot
1. Ignite the hob burner as described in the operating
instructions.
2. Check the large and small flames for the correct flame
behaviour. The flame must burn evenly and continuously.
3. Using the burner knob, switch quickly between the large and
small frame. Repeat this process a few times. The gas flame
must not flicker or go out.
Only for models with safety pilot
1. Light the gas with the igniter knob as described in the
operating instructions.
2. Turn the burner to the small flame setting.
Check whether the ignition is activated by holding the knob in
the "small flame" position for approximately 1 minute.
3. Check the large and small flames for the correct flame
behaviour. The flame must burn evenly and continuously.
4. Using the burner knob, switch quickly between the large and
small frame. Repeat this process a few times. The gas flame
must not flicker or go out.
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