As HVAC experts we understand how it is difficult living in a super-humid environment. The sweaty and sleepless night sans air-conditioning can be downright unpleasant. Mostly in cities like Phoenix, Tucson, and Las Vegas. Our client shared an experience with us which was about a night when their small window was lacking proper cross-ventilation. That was one of the weird nights for them because their main circuit board was unfunctional.

Yet, they just have the option to use a ceiling fan to help circulate the air. In the meantime, he was asking himself if I could plug the air-conditioner into an extension cord with the temporary back he had.

We hope you’d never go through this situation but if so you’re in a place where you need to use an extension cord. Remind yourself of this blog post and you’ll be safe and make sure your home doesn’t turn into a pile of ashes due to an apartment fire—trust me, it’s worse.

Can You Use An Extension Cord With An Air Conditioner? – In Which Conditions

First off, you can use an extension strop to run your Air Conditioner. Yet, not all extension cords are suitable for all devices. Your air conditioner is a powerful electrical appliance that demands specific cord specifications to operate. Always opt for a heavy-duty extension cord that can handle the load without causing an electrical surge.

Meanwhile, these cords are designed to manage the toll that running such a high-powered unit takes on your electrical system. Additionally, never plug your air conditioner into a regular power strip.

Instead, a surge protector specifically rated for high power demands is a safer choice. For areas where temperatures are hot throughout most days of the year, many homeowners utilize the methods to cool their homes naturally. After all, they have to depend on the HVAC or mini-split systems to keep their home cool.

Below are some considerations you should look for in an extension cord:

1. Amperage

The first thing to consider is the amperage your unit requires. This information can typically be found in your owner’s manual. It’s important that the amp ratings of both the cord and your home’s circuits match or exceed what your AC needs.

Note: If you use a cord that doesn’t meet these specifications it will lead to circuit breaker tripping. This indicates that your system is overloaded and can’t handle more electrical resistance.

2. Wire Gauge

Secondly, the wire gauge of the extension cord determines how much electricity it can safely transfer without overheating. This is a common practice if you plug an appliance in a low wire gauge it will get worms within minutes.

Ever noticed this?

3. Length

Do you know longer cords increase resistance, which can make your air conditioner work harder and use more power?

It results in higher power bills. That’s why the shortest cord is preferable for most setups. If a longer cord is unavoidable, compensate by choosing one with a heavier wire gauge to balance the increased resistance.

4. Prongs

2 or 3 prongs? Unable to decide what to choose?

Go for three prongs. The plugs with three prongs include a grounding point, which helps to redirect any excess electricity safely to the ground. It reduces the risk of electrocution, electrical fires, and unit damage. That’s how it handles electric current.

5. Current Capacity

Finally, the current capacity of your extension cord should align with the power efficiency.

For instance, if your unit operates with 70% power efficiency, meaning 70% of the electricity consumed is effectively used and 30% is lost.

Got the point?

The right cord will minimize your power loss. Plus, it won’t add any extra strain on the motor, friction, and travel losses.

Potential Hazards & Tips for Using a Power Strip

Using a power strip is a quick and simple solution for managing outlets. Yet, there are optional hazards of using it. If you ignore them you’ll be in danger due to mechanical damage.

1. Power Compatibility

Using a regular surge protector without verifying its capabilities can lead to failure in protecting your equipment. If you’re connecting devices like a laptop, lamp, or phone charger along with your air conditioner on the same strip. It will definitely cause power compatibility issues.

2. Safe Usage

If you smell smoke in your room, touch the components like the cord, unit, and wall around the outlet. If it feels warm, power down your AC unit and inspect for any problems.

3. Voltage Issues

Continuous operation of an appliance in such conditions can lead to temperature spikes. It signals that too much resistance or electricity is flowing through. This can spark wires and melt the insulation. This constant use also forces your AC unit to work harder.

Eventually causing it to break down prematurely. Moreover, using a short cord eliminates any hazards and delivers an optimal power input.

4. Electrical Load

You need a high-quality cord that doesn’t provide poor performance like voltage drops. It can suspend motor performance and put more stress on the system. While leading to a cyclical start and stoppage of the motor. As a result, the components wear out more quickly. 

Safety tips: Check your extension cord for any signs of damage, such as burn marks, melting plastic or rubber, or exposed wires. If you see any, purchase a new cord immediately. Because experts don’t recommend using a faulty wire which causes further malfunctions.

5. Placement & Handling

Avoid the urge to hide your cords under furniture or rugs as recommended. But why?

Aren’t they the aesthetics of the room?

It would but you’re using it for a temporary period and you can compromise it for that time. When you keep these visible it will prevent overheating and tripping.

For those concerned about cords being unsightly, attaching the cord to the wall with tape can keep it out of the way and visible. When you plug the extension cord directly into a wall outlet, don’t add additional power strips to increase the length. Again, adding more cords increases resistance.

When It’s Not Necessary to Use a Power Strip?

Individuals who have HVAC (larger cooling systems), like central air conditioners directly connected to the electrical grid. Their surge protection is already built-in. These systems often include a variable resistor that protects against unusual changes in electrical currents.

Similar to what an external surge protector offers. Therefore, investing in a separate power strip for these units is a waste of money. But, if you have multiple portable units in your home, then go for it to enjoy your cooling relief.

The Final Words

So, should you use an extension cord? Yes, but only in certain conditions with perfectly aligned strips and you’ll be safe, We hope you found this piece of information helpful to you and if you need any assistance regarding AC wiring and installation, Ventiluxes is here to help you, We want you to sleep without sweating in humid seasons:).