How Many Amps Does an RV AC Draw?

Most RV air conditioners typically consume between 12 to 16 amps during operation, depending on their size, which usually ranges from 13,500 to 15,000 BTU. However, the initial power requirement is significantly higher, and can reach 18-20 amps during startup. We have seen many customers' ACs climb above 35 amps during start-up. However, these numbers vary based on the brand and model. An average startup range for an RV AC is between 25-50 amps. This surge in demand can lead to tripped breakers and cause problems when running an RV AC on a portable generator or even at a campground.

Several elements influence power requirements, such as efficiency, age, and ambient temperature. So, if you’re curious about how to enhance your RV's energy efficiency, minimize power consumption, or prevent electrical overload, we have some recommendations to assist you. Let’s dive in!

What Affects An RV Air Conditioner Amp Draw?

First, let's get into how many amps an RV air conditioner uses. The amperage drawn by your RV air conditioner is influenced by several factors beyond the unit itself. If you have experienced tripping a breaker or faced difficulties in maintaining your generator's operation, it is probably a result of one or more of these factors.

Ultimately, gaining insight into these elements can assist you in effectively managing your power consumption and preventing unnecessary energy loss. Below are the factors that affect the RV air conditioner amperage draw of your air conditioning system:

• BTU Rating: Units with higher BTU ratings (15,000 BTU) tend to draw more amps compared to smaller units (13,500 BTU).

• Startup vs. Running Amps: The amperage of RV air conditioners surges during startup, often resulting in power spikes that can trip breakers or overload generators.

• Generator and Shore Power Considerations: Operating multiple appliances simultaneously with the AC can put a strain on a 30-amp system, leading to power complications.

• Age and Efficiency of the Unit: Older air conditioning units may operate less efficiently, requiring more power to function.

• Ambient Temperature: Higher temperatures compel the AC to exert more effort, thereby increasing the amperage draw.

• Maintenance of Filters: A clogged filter or a poorly maintained unit can elevate power consumption.

• Ductwork and Airflow: Obstructed or leaky ducts diminish efficiency, causing the AC to work harder and consume more energy.

• Humidity Levels: Elevated humidity levels necessitate longer operation of the AC, resulting in increased energy usage.

How to Reduce Your RV AC’s Power Usage

Minimizing the amperage draw of your RV air conditioner is crucial for enhancing energy efficiency, avoiding power complications, and maximizing the effectiveness of your RV's electrical system. Below are several practical measures to consider!

• Use a Soft Starter: Soft starters for RVs can decrease the initial power demand by as much as 70%, enabling your air conditioning unit to operate on smaller generators without causing circuit breakers to trip.

• Improve RV Insulation: Utilizing blinds, reflective covers, and additional insulation can lessen the workload on the air conditioner and help maintain a cooler environment inside your RV.

• Employ Fans and Ventilation: Operating ceiling or portable fans aids in circulating cool air, which can decrease the dependence on the air conditioning system.

• Operate AC During Optimal Hours: Cooling your RV during the early hours of the day can prevent the air conditioning unit from being overburdened during the hottest parts of the day.

• Maintain Clean AC Filters: Regular cleaning or replacement of filters is essential for sustaining efficiency and minimizing unnecessary energy consumption.

• Seal Windows and Doors: Ensuring that air leaks are sealed helps maintain stable indoor temperatures and reduces the workload on the air conditioning system.

• Install a Vent Cover: This feature enables you to keep vents open in various weather conditions, enhancing airflow and naturally keeping the RV cooler.

You may also be interested in: How to Choose the Right Size Generator To Run AC in an RV

Maximize Your RV’s Energy Efficiency and Avoid Power Issues

Overall, effectively managing power consumption is essential for RV owners who want to avoid power interruptions and maintain a comfortable environment while on the road. Air conditioning, one of the largest energy consumers in an RV, can easily overwhelm your electrical system without the right strategies in place. By learning how to reduce the amperage draw of your RV air conditioner and boost energy efficiency, you can prevent tripped breakers, reduce generator strain, and extend the lifespan of your AC unit.

There are several key ways to optimize energy usage. Start by installing a soft starter like Micro-Air’s EasyStart Breeze™ which helps minimize power demand during startup, helping your AC run smoothly on smaller generators or limited shore power. Micro-Air products are proudly manufactured and quality-tested in the U.S.!

Improving insulation will keep cool air inside your RV, reducing strain on the system, and using fans and ventilation systems can promote air circulation. Additionally, regular maintenance, such as cleaning and servicing your AC, ensures it runs efficiently.

By implementing these effective power management techniques, you can enjoy comfortable, reliable cooling while protecting your RV's electrical system. 

Explore Micro-Air’s RV AC Controls.

Related Content:

• How to Run RV AC on Solar Power
• What Size Generator Do You Need to Run an RV Air Conditioner?
• RVing with Dogs and Cats: Your Ultimate Travel Checklist

FAQ

Power-related issues are a common concern in RVs. Below are some frequently asked questions designed to assist RV owners in understanding their air conditioner's power consumption and preventing electrical problems.

Can I run my RV air conditioner on a 20-amp circuit?

Most RV air conditioners typically draw between 12 to 16 amps during operation, but the initial startup can demand over 30 amps. Therefore, a 20-amp circuit is usually inadequate for running an air conditioner unless a soft starter is employed to mitigate the startup power requirement.

Can you run an RV air conditioner on 30 amps?

Yes, it is feasible. However, using multiple appliances simultaneously may lead to circuit overload. Implementing a soft starter can help minimize power surges, facilitating the operation of an air conditioner on a 30-amp system.

Is it okay for RV AC to run all day?

Yes, it is permissible, but this may lead to increased energy consumption and accelerated wear on the unit. To enhance efficiency, consider utilizing a Bluetooth thermostat for RVs, which allows for remote control of the air conditioner. This feature enables you to cool your RV before your return or maintain a comfortable environment for pets inside.

Note: This article is for informational purposes only; Micro-Air does not make recommendations or provide support outside of Micro-Air products.