The back of a gas dryer pulled slightly away from the wall in a US home laundry room, showing the yellow flexible gas connector and the shutoff valve on the supply pipe.

Dryer
Smells Like Gas

The dryer smells like gas: a rotten-egg odor near a gas dryer at startup, during a cycle, or all the time.

(844) 314-5837

Mon–Sat, 8am–8pm

  • Fire or gas risk
  • 5 questions that narrow it
  • 5 causes, cheapest first

Book a visit

Three short steps, about a minute.

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Switch it off before anything else

Leave the house at once and call your gas utility from outside, or from a neighbor's home. Do not use switches, the dryer's controls or anything that can spark while you are inside. Let the utility confirm the house is safe, keep the gas shutoff to the dryer closed, and book the repair only after that.

What it
usually means.

Natural gas and propane are odorless, so utilities add a sulfur scent that smells like rotten eggs precisely so a leak cannot go unnoticed. Near a gas dryer that smell has two very different meanings. A brief whiff as the burner lights can come from a slow ignition, while a steady smell, or one present with the dryer off, points to gas escaping at the flexible connector, the shutoff valve or the valve assembly on the burner. Nobody can tell which from the laundry room, which is why the first step is always to leave and let the gas utility check.

The lower front access panel of a gas dryer is removed in a US home laundry room, showing the burner tube and a glowing orange igniter. The 5 causes, cheapest first

Answer these first

01

Is the smell there when the dryer is off, or only when it runs?

02

Is it a short puff when the burner lights, or a steady smell that stays?

03

Was the dryer recently moved, installed or pushed back against the wall?

04

Can you hear a hiss behind the dryer, near the gas line?

05

Does the burner click several times before it lights, or not light at all?

Check these
before you book.

Dryer smells like gas: 5 checks, and none of them costs anything.

01

If the smell is steady or strong, leave the house now, leaving lights and switches as they are, and call the gas utility from outside.

02

Do not start the dryer, unplug it or flip any switch while the smell is present.

03

Once the utility has cleared the house, note whether the smell came only at ignition or all the time.

Also worth checking

  • Check whether the dryer was moved recently and whether the flexible line behind it is kinked.
  • Keep the gas shutoff behind the dryer closed until a technician has checked the connection.

The causes,
cheapest first.

5 things dryer smells like gas turns out to be, from loose or damaged gas connector to smell from another appliance.

The cost guide
  1. 01 low

    Loose or damaged gas connector

    The flexible line between the shutoff valve and the dryer can loosen or crack when the dryer is moved. This is the most common source of a steady smell, and the utility or a qualified gas technician should confirm it before anything else.

  2. 02 low to moderate

    Slow ignition from a weak igniter

    A glow igniter that heats too slowly lets gas flow for a moment before it lights, which releases a brief puff of odor at the start of each heat cycle.

  3. 03 low

    Flame sensor not reading the flame

    The sensor tells the valve whether the flame is lit. A failing sensor can cause repeated ignition attempts, each with a short whiff of gas.

  4. 04 moderate

    Gas valve coils not closing cleanly

    The coils on the burner's valve open and close the gas. When they weaken, the valve can behave unpredictably, and the burner may light late or cycle oddly.

  5. 05 varies

    Smell from another appliance

    A water heater or furnace sharing the room or the gas line can produce the same smell. The utility's check covers the whole line, not only the dryer.

  6. What it costs

    Every repair on the site's cost scale, side by side

    Open the cost guide

The makes
it happens on.

14 makes on this site; dryer smells like gas can show up on any of them. Each mark opens that make's own page.

All 14 brands
A parent and a child folding warm towels together on top of a front-load dryer in a bright laundry room
For the heart of your home.

Questions about
dryer smells like gas.

The smell is faint and only when it starts. Do I still need to leave?
If you are unsure how strong it is, treat it as a leak and leave. A brief smell right at ignition is often a slow igniter, but that is a conclusion for after the gas utility has checked, not before. Utilities generally check a reported gas smell without charge.
Can I tighten the gas connector myself?
It is not a good idea. Overtightening can crack an old flare fitting, and the right fix is often a new connector rather than a tighter old one. Close the shutoff valve and leave the connection to the utility or a qualified technician.
Is it safe to use the dryer on air-only until the repair?
Not with the gas valve open. If the utility has cleared the house and you close the dryer's gas shutoff, an air-only cycle does not use gas. Ask the technician before relying on it.
Do I need a carbon monoxide alarm near a gas dryer?
It is a sensible precaution for any home with gas appliances. A gas dryer vents its exhaust outside, and a blocked or disconnected vent is one way combustion gases can enter the house.

Back to your everyday

Still seeing dryer smells like gas?

Book with what you checked above — 5 answers save the technician the first part of the visit.

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