# Hair dryer tripping the breaker or GFCI outlet

Source: https://airandbarrel.com/blog/hair-dryer-trips-breaker
Published: 2026-10-10
Publisher: Air & Barrel

**Short answer:** A full-power 1875 W hair dryer draws about 15 amps at 120 volts, which is close to the limit of a 15 amp circuit. If anything else on that circuit is running, the breaker trips. A GFCI outlet that trips points to a ground fault, moisture, or a fault in the dryer. Use a lower heat setting, unplug other loads, and call an electrician if it keeps happening.

A hair dryer is one of the most power-hungry appliances most people plug into a bathroom outlet. When it trips the breaker or the GFCI outlet, it is usually doing its job: the circuit protection is cutting power because the load is too high or because current is leaking where it should not. This page explains the difference between a breaker trip and a GFCI trip, how many amps a hair dryer uses, the common causes, and what you can safely check yourself before calling a licensed electrician.

## How many amps does a hair dryer use?

Current in amps is watts divided by volts. Most full-size US hair dryers are rated at 1875 W, which is 15 amps at 125 V, the rating of a standard household outlet. At a typical 120 V supply, 1875 W works out to a bit over 15 amps. That is why 1875 W is the common ceiling for US hand-held dryers. A few professional dryers list higher ratings, such as the 2000 W BaBylissPRO Falco and Rapido.

Most of that power goes to the heating element. The motor uses much less. So the heat setting, not the speed setting, makes the biggest difference to how much current the dryer pulls. Our [hair dryer wattage explained](https://airandbarrel.com/blog/hair-dryer-wattage-explained) page covers this in more detail.

| Dryer rating | Approximate amps |
| --- | --- |
| 1000 W | About 8.3 A |
| 1200 W | About 10 A |
| 1600 W | About 13.3 A |
| 1875 W | About 15.6 A |
| 2000 W | About 16.7 A |

Approximate current at 120 V (watts divided by volts)

## Breaker trip vs GFCI trip

A **circuit breaker** in your panel trips when the total current on a circuit is too high for too long. If your dryer pulls about 15 amps on a 15 amp circuit that also feeds lights, a heater or a curling iron, the total goes over and the breaker trips, often after a few seconds or minutes rather than instantly.

A **GFCI outlet** (the one with test and reset buttons) trips when it detects current leaking to ground, for example through water or a damaged cord. It does not care about total load. If the GFCI trips instantly when you switch on the dryer, the problem is more likely a fault or moisture than overload. Many hair dryers also have their own safety plug with test and reset buttons, which protects against the dryer being dropped in water.

## Common causes

- **Shared circuit:** the bathroom outlet shares a 15 amp circuit with lights, a fan, a space heater or another room.
- **Two heat tools at once:** a dryer and a flat iron or hot air brush on the same circuit.
- **Extension cord or power strip:** adds resistance and can overheat. Plug the dryer straight into the wall.
- **Moisture:** wet hands, a damp outlet, or condensation in the bathroom can trip a GFCI.
- **Faulty dryer:** a damaged cord, worn heating element or internal fault can cause GFCI trips. Test with a different dryer.
- **Worn breaker or outlet:** older breakers and outlets can trip below their rating. This needs an electrician.

## Step-by-step fixes you can try

1. Unplug the dryer. Reset the breaker by switching it fully off then on, or press reset on the GFCI.
2. Turn off or unplug everything else on that circuit, including space heaters and other hot tools.
3. Plug the dryer directly into the wall outlet, not a power strip or extension cord.
4. Run the dryer on a medium heat setting first. If that works and high heat trips it, overload is the likely cause.
5. Try the dryer on another circuit, such as a bedroom outlet. If it trips everywhere, suspect the dryer.
6. Try a different dryer on the original outlet. If that trips too, suspect the circuit or outlet.
7. Inspect the dryer cord for cuts, kinks or scorch marks. Stop using a damaged dryer.

Note: Never replace a breaker with a larger one to stop trips. Breaker size is matched to the wiring. Call a licensed electrician for any work in the panel or on outlets.

## Longer-term solutions

Current US electrical code generally calls for bathroom outlets on a 20 amp circuit, but many older homes have 15 amp circuits shared with other rooms. An electrician can tell you what your bathroom has and whether a dedicated circuit makes sense.

In the meantime, use lower heat. Many high-speed dryers dry well on medium heat because of strong airflow. Rough drying on medium and switching to high only for short bursts cuts the load. If you are buying a new dryer, see our [best high-speed hair dryers](https://airandbarrel.com/best/best-high-speed-hair-dryer) guide. For travel, where outlets and voltages differ, read [how to travel with a hair dryer](https://airandbarrel.com/blog/how-to-travel-with-a-hair-dryer).

## When to stop using the dryer

Stop and replace or repair the dryer if it trips a GFCI on every outlet you try, if you smell burning, if the cord or plug is hot or damaged, or if you see sparks. Do not open the dryer yourself. Check the maker's warranty first. If the dryer cuts out but does not trip anything, that is a different problem, usually overheating from a blocked filter. See [hair dryer blowing cold air](https://airandbarrel.com/blog/hair-dryer-blowing-cold-air) and [how to clean a hair dryer filter](https://airandbarrel.com/blog/how-to-clean-hair-dryer-filter).

## Frequently asked questions

**How many amps does a hair dryer use?** An 1875 W dryer draws roughly 15 amps at 120 V on its highest heat setting. Lower heat settings draw less.

**Why does my hair dryer trip the GFCI but not the breaker?** GFCIs respond to current leaking to ground, not overload. Moisture, a damaged cord or a fault in the dryer are common causes.

**Is it dangerous if my hair dryer trips the breaker?** The trip itself is the safety system working. Repeated trips mean the circuit is overloaded or something is faulty, so find the cause.

**Can I use a hair dryer on an extension cord?** It is better not to. Plug a hair dryer directly into a wall outlet.

## Buying guides for this topic

- https://airandbarrel.com/best/best-high-speed-hair-dryer
- https://airandbarrel.com/best/best-hair-dryer
- https://airandbarrel.com/best/best-lightweight-hair-dryer