Vermont Casting VM508 - Manual (Page 30)

50004425
Unit won’t stay lit
PROBLEM POTENTIAL CAUSE ACTION REQUIRED
Burner will not light Gas supply turned off
Out of propane
Blockage in the gas system
Misalignment of the gas valve to
the venturi tubes of the burner.
Improper attachment of the pro-
pane hose and regulator
Control knob left open at star-
tup,
or
turning gas on too quickly
or
cold climate or windy conditions
Wind
Running out of fuel
Unit won’t heat up
(LP)
Turn on fuel supply and retry.
Confirm the flow of gas by smell or by listening for
the hiss of gas being emitted. Allow gas to clear be-
fore attempting to relight.
Weigh your propane cylinder. A standard 20 lb. cylin-
der will weigh about 19 lbs. when it is empty and 39
lbs. when it is 80% full.
Never take a propane cylinder in-
doors for any purpose.
Confirm the venturi tubes are not blocked by insects
or other debris. Use a special venturi brush to clean.
(Fig. 16)
Use a wire brush or toothpick to carefully probe the
orifice in the gas valve. Never enlarge the orifice.
(Fig. 18)
Look under the front control panel and reinsert the
gas injector into the venturi tube, if required. (Fig. 21)
Tighten the regulator’s plastic collar onto the cylinder
valve. Hand-tighten only. (Fig. 4)
For safety, the regulator coupling on your barbecue is
equipped with a flow control mechanism. This device
limits gas flow in the event of a sudden change in the
demand for gas. This may be engaged inadvertently,
if a burner control knob should be left ON when you
open the propane cylinder valve. Rapidly opening the
valve can also engage flow control. To resolve the
problem, close your cylinder valve. Confirm that all
burner control knobs are in the OFF position. Open
the cylinder valve slowly (about 1 to 2 turns) and wait
5 seconds. Finally, turn a single burner ON and try
relighting it.
Always shelter your Grill from strong winds.
Confirm the flow of gas by smell, or by listening for
the hiss of gas being emitted.
Weigh your propane cylinder. A standard 20 lb. cylin-
der will weigh about 19 lb. when it is empty and 39 lb.
when it is 80% full.
Never take a propane cylinder in-
doors for any purpose.
Page 22
Troubleshooting Guide
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