Most gas dryers no longer use pilot lights

Modern gas dryers almost never have a pilot light. Instead, they use an electric ignition system — either a hot surface igniter or an electronic spark igniter — to light the gas burner when the dryer cycle starts. The pilot light was standard in older dryers built before the 1990s, but manufacturers phased it out because it wastes gas by burning continuously, even when the dryer is off.

If you own a gas dryer made in the last 25 years, it almost certainly has an electric igniter, not a pilot light. This change made dryers more energy-efficient and safer, since there is no open flame sitting idle inside the cabinet.

Key Takeaways

  • Gas dryers built after the early 1990s use electric igniters instead of pilot lights, which saves gas and improves safety.
  • A hot surface igniter glows red and lights the gas, while a spark igniter creates an electrical spark to ignite the burner.
  • If your dryer won't heat, the igniter is the most common part to fail, not a missing pilot light.
  • Older dryers with pilot lights are rare in homes today but still exist in some vintage or commercial machines.

How electric igniters replaced the pilot light

The shift from pilot lights to electric igniters happened gradually through the 1980s and 1990s. Manufacturers realized that a constantly burning pilot light consumed gas even when the dryer sat unused for days or weeks. An electric igniter, by contrast, only uses power when you start a cycle, cutting gas waste significantly.

The change also reduced fire risk. A pilot light is an open flame inside an enclosed space; if lint or debris accumulated near it, a fire could start. An electric igniter has no exposed flame, making the dryer safer overall. This is why building codes and safety standards began favoring the new design.

Two types of electric igniters in modern dryers

Hot surface igniters are the most common type in residential gas dryers today. When you start the dryer, electricity heats a ceramic element until it glows red-hot. The gas valve opens, and the hot element ignites the gas. You cannot see this happening inside the dryer, but if you could, you would see a small red glow for a few seconds at the start of the cycle.

Spark igniters work differently. They create a high-voltage electrical spark — similar to a spark plug in a car — that ignites the gas. Spark igniters are less common in home dryers but appear in some commercial or older electronic models. Both types are reliable, but hot surface igniters are cheaper to replace when they fail.

What happens when an igniter fails

If your gas dryer produces no heat, the igniter is the first thing to suspect. A failed igniter will not glow or spark, so the gas valve never opens and no flame forms. The dryer will run through its cycle, tumbling your clothes, but they will come out cold and damp.

You might also notice a clicking sound at the start of the cycle — that is the spark igniter trying to fire but failing to light the gas. A hot surface igniter that has burned out will straightforward do nothing; there is no clicking or visible sign. In either case, the igniter must be replaced. This is a straightforward repair that a technician can complete in under an hour, and the part itself costs between $150 and $300 depending on the dryer model.

Pilot lights in older or specialty dryers

If you own a gas dryer built before 1990, it may still have a pilot light. These dryers are now 30+ years old, and most have been replaced, but some are still in use. A pilot light in an old dryer looks like a small blue flame visible through a window or opening in the burner area. If the pilot light goes out, the dryer will not heat, and you will need to relight it manually.

Some commercial or industrial gas dryers also use pilot lights because they are simpler to maintain in high-volume settings. Laundromat dryers, for example, sometimes still rely on pilot ignition. If you are working with an older or commercial machine, check the manual or the burner area to see whether a pilot light is present.

How to tell what ignition system your dryer has

The easiest way is to check your dryer's manual or the model number plate inside the door frame. Search the model number online along with the word "igniter" and you will find the exact type. If you do not have the manual, you can also look at the burner area itself — open the front or back panel (unplug the dryer first) and look for the igniter near the gas burner. A hot surface igniter looks like a small ceramic rod or probe. A spark igniter looks like a thin electrode or spark gap. A pilot light, if present, is a small blue flame.

Do not attempt to inspect the igniter while the dryer is plugged in or running. If you are uncomfortable opening the dryer, a technician can identify the ignition type in seconds and tell you what to expect if it fails.

Why this matters for repair and maintenance

Understanding your dryer's ignition system helps you troubleshoot problems and budget for repairs. If your dryer is not heating, you now know that a failed igniter is the most likely cause — not a missing pilot light. If a technician quotes you a repair, you can ask whether they are replacing the igniter and confirm the part cost.

Knowing the ignition type also matters if you are buying a used dryer. An older dryer with a pilot light may be cheaper upfront, but it uses more gas over time. A newer dryer with an electric igniter will cost less to run and is less likely to need repairs in the near term.

Frequently Asked Questions

Can I relight a pilot light on my gas dryer myself?

If your dryer is old enough to have a pilot light, relighting it is usually straightforward — look for a small knob or button near the burner, hold it in while using a long lighter to ignite the pilot, and hold it for 30 seconds. Check your manual for the exact steps, as older models vary. If the pilot will not stay lit, the thermocouple (a safety device) may be faulty and needs replacement.

Why does my dryer click but not heat?

A clicking sound at the start of a cycle usually means the spark igniter is trying to fire but failing to light the gas. This happens when the igniter is worn out or dirty. The igniter must be replaced; cleaning rarely fixes the problem. A technician can confirm this in minutes.

Is it safe to use a dryer with a broken igniter?

No. A dryer with a failed igniter will not heat, so it cannot dry clothes. More importantly, if the igniter fails but the gas valve opens anyway, unburned gas can accumulate inside the cabinet, creating a safety hazard. Do not use the dryer until the igniter is repaired.

How long do electric igniters last?

Hot surface igniters typically last 5 to 10 years with normal use, though some fail sooner if the dryer runs frequently. Spark igniters tend to last longer. Lifespan depends on how often you use the dryer and the quality of the part. Replacement is straightforward and affordable compared to other appliance repairs.

What is the difference in gas cost between a pilot light and an electric igniter?

A pilot light burns continuously, using a small but steady amount of gas. Over a year, this can add $10 to $30 to your gas bill, depending on your utility rates and how often you use the dryer. An electric igniter uses no gas when the dryer is off, so the savings add up over time — one reason manufacturers switched to the newer design.