Napoleon R425-1 Manual page 17

Problem
Burner output on "high" setting
is too low. (Rumbling noise and
fluttering blue flame at burner
surface.)
Infrared burner (if equipped)
flashes back (during operation
the burner abruptly makes a
loud "whoosh" sound, followed
by a continuous blow-torch type
sound and grows dim.)
N415-0574 Sep 10.20
Possible Causes
Lack of gas.
Supply hose is pinched.
Dirty or clogged orifice.
Spider webs or other matter in venturi tube.
Propane regulator in "low flow" state.
Ceramic tiles overloaded with grease drippings
and build-up. ports are clogged.
Burner overheated due to inadequate
ventilation (too much grill surface covered by
griddle or pan.)
Cracked ceramic tile.
Leaking gasket surrounding the ceramic tile, or a
weld failure in the burner housing.
Solution
Check gas level in propane cylinder.
Reposition supply hose as necessary.
Clean burner orifice.
Clean out venturi tube.
Ensure lighting procedure is followed carefully.
All gas grill valves must be in the off position
when the tank valve is turned on. Turn tank on
slowly to allow pressure to equalize. See lighting
instructions.
Turn burner off and allow to cool for at least two
minutes. Relight burner and burn on high for at
least five minutes or until the ceramic tiles are
evenly glowing red.
Ensure that no more than 75% of the grill surface
is covered by objects or accessories. Turn burner
off and allow to cool for at least two minutes, then
relight.
Allow burner to cool and inspect very closely
for cracks. If any cracks are found, contact your
authorized Napoleon dealer to order a replacement
burner assembly.
Contact your authorized Napoleon dealer for
instructions on ordering a replacement burner
assembly.
www.napoleon.com
17
EN