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Glam Journal

Can you use a surge protector with an air conditioner

Author

David Craig

Updated on April 20, 2026

It is not safe to plug an AC unit into a conventional power strip as it can cause electrical fires to break out. Instead, you can use surge protectors. These devices look and function just like a power strip but with added protection against power surges, which can damage your unit.

Can power surge damage air conditioner?

A power surge on your modern AC could be devastating and result in a breakdown of the system. Many times, a spike in electricity could cause hidden problems inside your air conditioner. These are problems that you may not notice for months, such as premature wear and tear on vital internal components.

How do I protect my AC from power surges?

The surest way to protect your equipment during an electrical storm is simply to disconnect it from the power source. Install surge protectors on valuable equipment. A surge protector is a device that is installed between your equipment and its power source.

Why does my AC keep tripping the surge protector?

Faulty Wiring. Hunker blames a lot of the tripping you see in power strips on loose or faulty wires. Frayed wires and loose connections cause electricity to flow in unstable quantities. A power strip with surge protection will react to this instability by shutting the circuit off to protect your appliances.

Should I turn off AC when power goes out?

Air conditioners should be turned off during power outages. Do not turn them back on for several minutes after the power has been restored. Dress comfortably and use natural ventilation to keep your home cool.

Should an air conditioner be plugged into a surge protector?

A portable air conditioner should be plugged directly into an outlet and not into a surge protector or extension cord. There are multiple protection options to prevent damage to the unit from power surges.

What do I do if my AC isnt blowing cold air?

Try cleaning your air conditioner’s filter and the coils to see if improving the airflow fixes the problem. If there is ice buildup, you’ll need to run the unit with just the fan in order to melt it off. If that doesn’t get the unit blowing cold air again, it could be refrigerant levels are low (see below).

Can you use an extension cord with an air conditioner?

First and foremost: do not connect your air-conditioner window unit to an extension cord. … There are heavy-duty extension cords that are specifically designed for major appliances like air-conditioners. These should be shorter cords with lower gauges (12 or 14 gauge) and higher amp ratings.

How much does an AC surge protector cost?

How Much Does an AC Surge Protector Cost to Install? The cost of an AC surge protector can vary widely, but protectors meant for AC units usually range from $75 to $100.

Why is my home air conditioner surging?

What Can Cause Power Surges? Lightning strikes, high electricity demand, power flickers and outages due to heavy vegetation and squirrels (no joke!) can have happen to any home. This is why we recommend the installation of surge protectors on your HVAC equipment inside and outside the home.

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How does an AC surge protector work?

How Does a Surge Protector Work? … It works by pulling the current from one outlet and passing it through to the devices you have plugged into the surge protector. A surge protector contains metal oxide varistor, or MOV, which diverts any extra voltage to ensure devices receive a consistent power level.

Why is my air conditioner surging?

Causes. Power surges can be natural or man-made. A natural source of power surges is lightning, which can cause a sudden spike in the electrical current running through your home if it strikes a power line connected to the house. Man-made power surges can come from the air conditioner itself.

Does air conditioning work without electricity?

Now, Fan and former research associates Aaswath Raman and Eli Goldstein, have shown that a system involving these surfaces can cool flowing water to a temperature below that of the surrounding air. The entire cooling process is done without electricity.

When should I reset my AC unit?

Why Do I Need to Reset My Air Conditioner? The most common reason for an AC unit requiring a reset is when the protection circuit breaker in your AC unit kicks in. This typically happens after a power outage and is in place to prevent fires and explosions.

Why is my air conditioner not working after power outage?

Usually, the 3 main reasons your AC won’t blow cold air after a power outage include: A tripped circuit breaker. A bad capacitor. Compressor failure.

Why is my air conditioner not cooling my house below 80 degrees?

Change the Filter If your filter is loaded with dust and dirt, it could be causing your air conditioner to not run effectively. If you haven’t changed your filter lately, now might be the time to do so. Filters keep dust and other contaminants from building up in your air conditioner.

What kind of extension cord can I use for an air conditioner?

A 14-guage extension cord can handle that much current, but remember that an air conditioner, like most appliances, draws more current when it starts up. For this reason, and to prevent poor performance because of voltage drop, it’s safer to use a 12-gauge cord.

Can I plug window AC into power strip?

No is the general answer to such a broad question. However, if the AC draws less than the rating of the power strip, it will work safely. An AC that will plug into a standard outlet (US) is rated at or below 15 amps. There are power strips rated at 15 amps.

What is the difference between surge protector and power strip?

A power strip gives you the ability to plug multiple devices into a single wall outlet. A surge protector is a type of power strip which is specifically designed to withstand a power surge and keep your electronics safe.

Can I install a whole house surge protector myself?

Can you install a whole house surge protector yourself? You’ll need two blank spaces, one on top of the other, in your main panel to hook up the SPD. Or, you can connect it to an existing two-pole 240V breaker—but only if that breaker is rated for two wires.

Are surge protectors worth it?

Surge protection protects your appliances and devices from voltage spikes. Given the amount of power that appliances and devices now have, surge protection is more important than ever. If you have too much voltage running through an outlet, it can cause electrical issues or even a fire.

What gauge extension cord do I need for an air conditioner?

Extension cords for air conditioners are usually a minimum of 14 gauge, which is considered medium duty. The tricky thing with gauges is that lower-gauged extension cords can handle more amps (yes, you read that right!)

Can I use an extension cord for a 5000 BTU air conditioner?

As a rule of thumb, you shouldn’t use an extension cord to run your AC. Based on the 110 vac house electrical service standard in the US. Air conditioners with 5,000 to 6,000 BTUs generally draw between 5 and 7 amps. They are typically plugged into a 15 amp circuit breaker provided in a wall socket.

Does a window air conditioner need a dedicated circuit?

A window air conditioner unit will need its own dedicated circuit. While there are small units that do not require a dedicated circuit, these are rare. It is important to have a dedicated circuit so as to not cause an overload.

Why is my AC so loud when it turns on?

Compressor motor: This is a likely culprit if your air conditioner is only making the loud noise when it turns on. … Fan motor: If your A/C is making a variety of grinding noises, it may mean that the motor needs lubrication or the bearings are bad.

Why do my lights flicker when my AC turns on?

This is because your AC requires a large amount of electricity to initially start up. … When it starts, it temporarily drains power from other appliances like your lights, causing them to flicker slightly.

Can a power surge damage appliances?

The spike in voltage that causes power surges has the potential to damage electrical devices and appliances. When voltage increases above normal capacity, it can cause an arc of electrical current, with associated heat also posing a risk to electronic components.

What can you not put in a surge protector?

  • Large Kitchen Appliances (Refrigerator, Dishwasher, etc.) These appliances are so high-powered that they’ll easily overload a poor, little power strip. …
  • Small Kitchen Appliances. …
  • Hair Styling Tools. …
  • Extension Cords and Other Power Strips.

Do Cheap surge protectors work?

Those cheap surge protectors are little more than power strips for more outlets. If they do offer any suppression ability. They’ll keep working once the suppressor bit has worn out leaving you totally unprotected. A good quality surge strip stops functioning once the surge protector mechanism has burned out.

How can I cool my house without electricity?

  1. Take a dip in the pool.
  2. Stay hydrated.
  3. Close off the hottest rooms.
  4. Sleep downstairs.
  5. Cover your windows during the day.
  6. Open your windows in the evening.
  7. Wear breathable fabrics.
  8. Use a cooling towel or wet bandana.

How can I cool down without power?

Dress in loose, lightweight clothing and stay on the coolest, lowest level of your home. Use natural ventilation to cool homes, and consider purchasing battery-powered fans. Drink plenty of water and avoid heavy meals, caffeinated drinks and alcohol. Keep refrigerator or freezer doors closed.