Grill
Gas Smell at the Burners or the Tank: What to Do Now
A gas smell from grill burners, the hose or the propane tank is the sharp added odor of propane or natural gas, noticed with the lid up, while lighting, or with every knob already off.
Mon–Sat, 8am–8pm
- Gas or fire at the grill
- 5 questions that narrow it
- 6 causes, cheapest first
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Gas smell? Knobs off, tank shut, lid up, step back
Open air does not make a leak harmless. Knobs off, gas closed, lid open, no flame, step away, and call the utility or 911 from a distance if the odor holds. After it clears, keep the grill unlit until the hose, the regulator and the valves have been checked on a visit.
What it
usually means.
A grill gets its gas one of two ways. A freestanding cart grill usually hangs a propane tank under the firebox, with a regulator and hose screwed onto the tank valve; a built-in grill head is more often piped to the house supply through a shutoff and a flexible connector, or fed by a tank in a vented cabinet below. From there a manifold carries gas across the front of the grill to one valve per burner. The odor is added on purpose so that a leak is noticed early, and on a patio it can thin out in a breeze, which tempts people to shrug it off. Do not. A burner turned on that never caught can fill the closed firebox, and raising the lid onto a spark or a lit neighbor burner sets it off at once. Other sources are a tank coupling cross-threaded at the last exchange, a hose baked brittle by the firebox, a hose gnawed by a mouse sheltering under the cart, a knob nudged open when the cover went on, or a valve worn loose on its stem. The order is fixed: knobs off, gas closed at the tank or the shutoff, lid open, no flame or spark, step away. If the smell remains, the gas utility or 911 is called from a distance.
The 6 causes, cheapest first
Answer these first
Where is the odor sharpest: down by the tank, along the knobs, or in the rush of air as the lid lifts?
Were all the knobs off, or was a burner turned on that never lit?
Does a tank under the grill feed it, or a pipe from the house?
Was the tank just swapped or refilled, or was the grill moved, covered or bumped?
Once the tank or shutoff is closed, is the patio clear of odor after a few minutes?
Check these
before you book.
Gas smell from grill: 5 checks, and none of them costs anything.
Turn every grill knob to off, then close the propane tank valve clockwise or the natural gas shutoff, only if you can reach it without standing in the smell.
Leave the lid up, and keep lighters, cigarettes, the igniter button and any plug or switch near the grill untouched.
Get people and pets clear of the grill and the tank, upwind if possible.
Also worth checking
- Should the odor hang on with the gas shut, phone the utility or 911 once you are well clear of the patio.
- Never hunt for the leak with a flame; use soapy water on the tank connection only if your manual calls for it, and leave every other fitting and valve for the technician.
The causes,
cheapest first.
6 things grill gas smell at the burners or the tank: what to do now turns out to be, from a burner turned on that never lit to connector strained where the line enters the island.
The cost guide-
01 no repair
A burner turned on that never lit
A click or two with no flame, then a distraction, and the firebox slowly fills. Knob off, lid up, gas closed and a quiet wait clear it; the manual gives how long to wait before any relight.
-
02 lowest
Tank coupling not seated after an exchange
The large plastic nut that joins regulator and tank is turned by hand at every swap, and a crossed thread or a half turn lets gas escape right at the tank valve. It is threaded back on true and every joint to the burners is leak-tested.
-
03 low to moderate
Regulator vent plugged or regulator failing
A wasp nest or grime in the small vent on the regulator, or a diaphragm aged by years of sun, can let gas out at the regulator body. The whole regulator is swapped; its spring is never tinkered with.
-
04 low to moderate
Hose cracked by heat or bitten by a rodent
The hose runs close to the firebox and the grease tray, and a cart's lower shelf is a favorite nest. Brittle or chewed rubber is changed together with the regulator.
-
05 moderate
A burner valve seeping at its stem
Heat, grease and salt air work a valve seal loose until it passes gas at the panel with the knob closed. The valve is pressure-tested and swapped by the technician, never pulled at home.
-
06 moderate
Connector strained where the line enters the island
Resetting a built-in grill head, laying new pavers or a slip of a shovel can stress the flexible connector behind the shutoff. The leak is traced from the shutoff toward the grill.
What else
it could be.
Most often confused with grill flashback: flames behind the knobs or under the panel, then grill knob won't turn off: burner still lit at off.
All problemsCodes that come with it
Also related
The makes
it happens on.
23 makes on this site; grill gas smell at the burners or the tank: what to do now can show up on any of them. Each mark opens that make's own page.
All 23 brandsGrill Gas Smell at the Burners or the Tank: What to Do Now,
where we come out.
9 metros, each with its own page.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions about
grill gas smell at the burners or the tank: what to do now.
Why does the grill reek of gas the moment the lid opens?
Can we hook up the spare propane tank to see if the smell goes away?
Is the soapy water test on the tank connection safe to do?
Does natural gas behave differently from propane at a BBQ?
Back to your everyday
Still seeing grill gas smell at the burners or the tank: what to do now?
Book with what you checked above — 5 answers save the technician the first part of the visit.