Grandhall Freedom 450 Operating And Assembly Instructions Manual page 21

21
CLEANING BURNER TUBES
AND BURNER PORTS
To reduce risk of FLASHBACK FIRE you must clean the burner
tubes as follows at least once a month in summer and autumn or
whenever spiders are active in your area, and if the appliance has
not been used for an extended period of time.
1. Turn all burner valves to full 'OFF' position.
2. Turn LP gas cylinder valve to full 'OFF' position.
3. Detach LP gas regulator assembly from gas cylinder.
4. Remove cooking plates and grease tray.
5. Remove screw from rear of each burner using a Phillips-
head screwdriver.
6. Carefully lift each burner up and away from gas valve orifice.
7. Check and clean burner/venturi tubes for insects and insect
nests. A clogged tube can lead to a fire beneath the appliance.
8. Refer to diagram 1 and perform one of these three cleaning
methods:
METHOD 1: Bend a stiff wire or wire coat hanger into a small
hook as shown and run the hook through burner tube and inside
burner several times to remove debris.
METHOD 2: Use a bottle brush with a flexible handle and run
through the burner tube and inside burner several times to
remove any debris.
Diagram 1.
To clean burner tube, insert hook as indicated by
the arrow.
M A I N T E N A N C
METHOD 3: Use an air hose to force air through each burner tube.
The forced air should pass debris or obstructions through burner
and out the ports.
Regardless of which burner cleaning procedure you use, we
recommend you also complete the following steps to help prolong
burner life.
1. Use a fibre pad or nylon brush to clean the entire outer
surface of each burner until free of food residue and dirt.
2. Clean any clogged ports with a stiff wire, such as an open
paper clip.
3. Inspect each burner for damage (cracks or holes) and if
such damage is found, order and install a new burner. After
installation, check to ensure the gas valve orifices are
correctly placed inside the ends of the burner tubes. Also
check position of your spark electrode.
FOR SAFE OPERATION ENSURE GAS
VALVE ASSEMBLY ORIFICE IS INSIDE
BURNER TUBE BEFORE USING YOUR
APPLIANCE. See diagram.
IF ORIFICE IS NOT INSIDE BURNER
TUBE, LIGHTING THE BURNER MAY
CAUSE EXPLOSION AND / OR FIRE
RESULTING IN SERIOUS BODILY
INJURY AND / OR PROPERTY DAMAGE.
Gas valve assembly
E
Orifice Burner tube
21