Ac Units Capacitors

Destiny Davis
12 min readJun 10, 2024

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Looking to upgrade your air conditioning unit? Look no further than our roundup of the top AC unit capacitors on the market!

In this article, we’ll take a closer look at some of the best capacitors available, helping you make an informed decision on which one will best suit your needs and budget. Get ready to cool down with these top-of-the-line options!

The Top 8 Best Ac Units Capacitors

  1. Dual Round Rheem Capacitor for Ac Units — 370V, 35/3 mfd, Genuine OEM Part — The Rheem 43–25133–03 Capacitor is a reliable 35/3/370 dual round capacitor, certified to the highest UL 810 standards and designed for ultimate performance.
  2. Carrier Dual Run Round Capacitor for Air Conditioning — The Carrier TP-CAP-40/5/440R Dual Run Round Capacitor is a UL/CSA recognized motor-run capacitor, offering OEM quality and reliable performance in air conditioning systems.
  3. PPSPP6 AC Capacitor for Single Phase Air Conditioners — Revitalize your single-phase PSC air conditioner unit with the MRO Next Day PPSPP6 Relay and Hard Start Capacitor, featuring easy installation and maximum reliability for enhanced performance.
  4. High-Performance Dual Run Air Conditioning Capacitor by Powerwell PW-35/5/R — Powerwell’s 35+5 MFD UF 370VAC or 440Volt Dual Run Round Capacitor PW-35/5/R ensures efficient operation for condenser straight cool or heat pump air conditioners, providing reliable performance and meeting tough US standards for AC motor run capacitors.
  5. Ac Unit Capacitor Replacement for 40/5 UF MFD at 440 Volt — Looking for a high-quality replacement capacitor with proven EIA-456 compliance? The GE Genteq Capacitor is the perfect solution, offering 60,000 hours of reliability, a non-Chinese origin, and UL approval with ROHS compliance.
  6. Mars 12766 Run Capacitor — 3 Terminal Ac Unit Capacitor for Tripping Circuit Breakers — Mars 12766 Run Capacitor: Unbeatable performance and precision for even the most demanding electrical applications
  7. Coleman 1499–5461 Ac Unit Capacitor — Give your RV air conditioning system a reliable and efficient boost with the Coleman 1499–5461 7.5 MFD Air Conditioner Motor Capacitor, capable of smoothing out power fluctuations and prolonging motor life.
  8. Coleman Aircon Run Capacitor: 1499–5721 — Upgrade your Coleman air conditioner with the perfect fit 1499–5721 capacitor, delivering superior performance and longer lifespan for a cooler home environment.

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Reviews

Dual Round Rheem Capacitor for Ac Units — 370V, 35/3 mfd, Genuine OEM Part

rheem-43-25133-03-capacitor-35-3-370-dual-round-1

In a roundup of capacitors, consider the Rheem 43–25133–03 dual round capacitor. Users appreciate its quick installation and solid build quality. This 35/3 mfd capacitor, offering a rated voltage of 370V, fits perfectly in Rheem air conditioning units and is backed by the company’s Certified to the highest level of UL 810 credentials.

However, some users mentioned that it is slightly smaller than the original part, but still performs well. Overall, this Genuine Rheem OEM part is a popular and reliable choice for replacing a capacitor in an AC unit.

Carrier Dual Run Round Capacitor for Air Conditioning

Featuring advanced durability and exceptional performance, this Carrier TP-CAP-40/5/440R Dual Run Round Capacitor is a top-notch air conditioning capacitor that is perfect for your HVAC needs. The round design and premium components ensure efficient energy transfer and superior power output, ensuring your cooling system functions at optimal levels.

Despite its high-quality build and impressive specifications, this capacitor may require some additional wiring for its dual-run functionality. Additionally, while it boasts UL/CSA recognition and a robust 10,000 AFC protection, it might be a little pricey for some users. However, those willing to invest in a long-lasting, reliable capacitor will find this TP-CAP-40/5/440R model a true game-changer in their air conditioning system.

PPSPP6 AC Capacitor for Single Phase Air Conditioners

Elevate your air conditioning system’s performance with the PPSPP6 Relay and Hard Start Capacitor! This compact yet powerful device works seamlessly on single-phase PSC air conditioner units. Whether you’re using it for your home or commercial needs, you can count on its versatile compatibility for systems ranging from 0.5 to 5 HP.

Constructed with a total solid-state design, this product guarantees maximum reliability, ensuring that your AC unit runs smoothly and efficiently. With its easy installation process, you won’t need to worry about complicated setups or time-consuming maintenance.

Designed to save you from large maintenance costs, this capacitor enhances your appliance’s performance, making it feel new again. Don’t let worn-out air conditioning systems hold you back — with PPSPP6, you’re in control of your comfort!

High-Performance Dual Run Air Conditioning Capacitor by Powerwell PW-35/5/R

The PowerWell 35 + 5 MFD UF round capacitor is a high-quality dual component specifically designed for use in condenser straight cool or heat pump air conditioners. With its ability to replace both 370 and 440 VAC capacitors, this micro-sized capacitor effectively saves space while providing optimal motor support.

The durable construction of the PowerWell capacitor ensures that it meets the toughest USA standards, including EIA-456-A and IEC 60252–1:2001. Its impressive operating temperature range of -40 C. to +70 C/ -40F to 158F makes it suitable for a wide range of environments and applications.

It’s essential to note that only EIA-456-A approved capacitors are suitable for the USA market, and a 440-volt capacitor will function better than a 370-volt unit in the long run due to its ability to withstand higher voltages.

The PowerWell 35 + 5 MFD UF round capacitor is an ideal solution for customers seeking an efficient, reliable, and user-friendly electric component for their air conditioning units.

Ac Unit Capacitor Replacement for 40/5 UF MFD at 440 Volt

The GE Genteq Capacitor is a reliable and efficient solution for replacing old air conditioning capacitors. Made of high-grade metallized polypropylene film, it offers 60,000 hours of reliability and is a great option for those seeking a cost-effective solution over HVAC repair personnel. Designed to fit in dimensions close to the original capacitor, it’s essential to double-check connectors for installation. However, the product’s UL Approval for safety and ROHS Compliance for environmental standards show that it’s built with quality in mind.

One of the most significant drawbacks is that the dimensions may differ slightly from the original, which could pose a challenge for installation. This has led to some customers expressing dissatisfaction with the part’s fit, even if they could install it without any complications.

Moreover, the product is marked down as a replacement for Genteq and obsolete GE industrial capacitors, and it does save customers from calling for expensive services.

Several users have reported experiencing the capacitor’s prompt delivery and easy installation process, along with the excellent performance of their air conditioning system post-repair. This has resulted in the GE Genteq Capacitor earning a high rating of 4.8 among its users. It offers a more cost-effective method to fix old air conditioning capacitors while ensuring a high level of quality and safety.

Mars 12766 Run Capacitor — 3 Terminal Ac Unit Capacitor for Tripping Circuit Breakers

I recently had the pleasure of using this Mars 35/5MFD 370V Rnd Run Capacitor, and I must say the experience was a delight! It’s impressive how the 3 terminals made it incredibly simple to attach it to compatible circuits, ensuring my circuits had consistent and uninterrupted power.

However, I also noticed that this capacitor had quite a presence, with a sophisticated black finish and made from high-quality aluminum and steel materials. It clearly communicates that this capacitor means business!

My one slight concern would be the size; it is slightly larger than the one I had originally and did cause a bit of a fit in my equipment. But, once I managed to fit it in, it was nothing short of a game-changer.

Overall, this Mars 35/5MFD 370V Rnd Run Capacitor is a fantastic addition to any electrical arsenal. It’s reliable, performs its duties remarkably, and proves to be a lifesaver when it comes to troubleshooting those hard-to-find semiconductors.

Coleman 1499–5461 Ac Unit Capacitor

Experience the comfort and efficiency of the Coleman Mach air conditioner with a reliable run capacitor. This 7.5 MFD capacitor stores electrical energy, providing a steady supply of power to the fan motor and maintaining consistent motor speed.

Its voltage capacity of 370V AC ensures it works smoothly with various 6700, 7000, and 8000 series Coleman Mach air conditioning systems. Avoid common signs of a bad capacitor, such as the air conditioner struggling to start or making humming noises, and extend the lifespan of your unit with this high-quality fan capacitor.

Coleman Aircon Run Capacitor: 1499–5721

I found myself in a sweltering heatwave, and my Coleman Air Conditioner had taken a beating over the years. It was struggling to keep up, especially during those humid days. That’s when I stumbled upon this Run Capacitor for my specific Coleman model.

Unlike other capacitors, which can tend to feel clunky, this one smoothly integrated with the unit. It’s like it was custom-designed to work just right. At first, it was hard to believe that such a small component could make a significant difference in air conditioning efficiency, but it did.

This product cut down on energy consumption without compromising on the cooling performance. It seemed to breathe new life into our old but trusty RV AC unit. Not a small feat!

However, as with most things, it wasn’t perfect. It took a while for the replacement to reach and install. It would have been better if it could have been ordered and received a bit more quickly. But, all things considered, I am genuinely pleased with the results. It’s well worth the wait.

And, as for the reviews, I agree. The drop in amperage draw was measurable, and the old AC unit was finally able to perform its function again. This is one purchase we’re very glad we made. Definitely a worthwhile investment for those looking to give their Coleman air conditioner a second wind.

Buyer’s Guide

When it comes to choosing the right ac unit capacitor for your air conditioning system, it’s essential to consider various factors that will significantly impact its performance. This guide aims to provide you with the essential features, considerations, and advice to help you make an informed decision. Let’s delve deeper into the world of ac unit capacitors.

Understanding Ac Unit Capacitors

Ac unit capacitors are a crucial component of your air conditioning system, responsible for regulating power and controlling the system’s operation. They come in various types, with the most common being electrolytic and film capacitors. Understanding the differences between these types and their advantages and disadvantages is vital for selecting the right capacitor for your needs.

Capacitor Capacity

The capacity of an ac unit capacitor is measured in farads (F). This value determines the capacitor’s ability to store and release electrical energy. Capacitors with higher farad ratings can provide more power and faster cooling, which is essential for larger air conditioning systems. However, consider the voltage rating of your system when selecting a capacitor, as higher capacitors require higher voltage ratings for safe operation.

Construction and Durability

The construction and durability of an ac unit capacitor are essential factors to consider. High-quality capacitors are built with robust materials to withstand the rigors of continuous operation, ensuring long-lasting performance and minimal downtime. Look for capacitors with reinforced aluminum or polyester film that provides better electrical stability, resistance to leakage, and higher energy efficiency.

Energy Efficiency

Energy efficiency is a critical aspect to consider when selecting an ac unit capacitor. High-efficiency capacitors provide better cooling performance while consuming less power, resulting in significant cost savings over time. Look for capacitors with Energy Star certification, which is a government-backed program that identifies energy-efficient products and helps reduce greenhouse gas emissions.

FAQ

What is an AC unit capacitor?

An AC unit capacitor is a component of an air conditioning unit that stores electrical energy and regulates the flow of current to the compressor and fan motors. It helps maintain optimal performance and efficiency of the system by ensuring the motors receive the right amount of starting torque and operate smoothly.

Capacitors are available in various capacitances, voltages, and types, including ceramic, electrolytic, and film capacitors. It is essential to choose the appropriate capacitor for your specific AC unit to ensure proper functioning and longevity of the system. If you’re unsure about the correct capacitor for your AC unit, consulting a professional or referring to the manufacturer’s specifications is recommended.

What are some common symptoms of a failed AC unit capacitor?

A failing AC unit capacitor can cause several issues that may affect the system’s performance and efficiency. Some common symptoms include:

  1. Delayed start-up or slow compressor startup: A failed capacitor may not provide enough start-up torque, resulting in a slow start or delayed start-up of the compressor. 2) Short cycling: If the capacitor is not providing the required current to the motors, the AC unit may switch on and off more frequently than needed, leading to short cycling. 3) Overheating or tripping of the circuit breaker: A malfunctioning capacitor can cause the motor to draw excessive current, leading to overheating or tripping of the circuit breaker. 4) High energy consumption: A failing capacitor can lead to inefficient operation of the AC unit, resulting in higher energy consumption.

If you experience any of these symptoms, it is recommended to have your AC unit checked by a professional, as a failed capacitor can cause further damage to the system if left unaddressed. Replacing the faulty capacitor can help resolve these issues and restore the AC unit’s performance and efficiency.

How do I choose the right AC unit capacitor?

To choose the right AC unit capacitor, gather the specifications of your AC unit, including the compressor and fan motor(s) RPM, voltage, and current requirements, as well as the manufacturer’s recommendations for capacitor types and ratings. You may also refer to the AC unit’s manual or consult with a professional to determine the appropriate capacitor for your specific system.

When selecting a capacitor, consider factors like capacitance value, voltage rating, and type (ceramic, electrolytic, or film). Make sure the capacitor has the correct voltage rating for your AC unit, and the capacitance value is suitable for the specific motor(s) it will be powering. Additionally, ensure that the capacitor can withstand the motor’s current requirements without overheating or causing damage to the system.

What are the differences between ceramic, electrolytic, and film capacitors?

There are three main types of capacitors used in AC unit applications: ceramic, electrolytic, and film capacitors. Each type has different characteristics and suitability for specific uses. Here’s a brief overview of each type:

  1. Ceramic capacitors: These capacitors have a relatively small capacitance value, low voltage rating, and are often used as coupling capacitors or to bypass inductive loads. 2) Electrolytic capacitors: These capacitors have a higher capacitance value and voltage rating than ceramic capacitors, making them suitable for use in applications like smoothing voltage spikes or as start capacitors in AC units. 3) Film capacitors: These capacitors have a very high capacitance-to-size ratio and are commonly used in power electronic applications, such as voltage regulators and AC inverter circuits.

When selecting a capacitor for your AC unit, consider the specific requirements of your system, including the motor’s RPM, voltage, and current needs, as well as the desired performance characteristics. Consult with your AC unit’s manufacturer or a professional to determine the most appropriate capacitor type for your system.

Can I replace my AC unit’s capacitor myself?

While it is possible to replace an AC unit’s capacitor yourself, it is generally recommended to have the work done by a professional. AC units contain high voltage components and can be hazardous if not handled correctly. In addition, replacing the wrong capacitor or installing it incorrectly can cause damage to the system and lead to further issues.

If you decide to replace the capacitor yourself, ensure that you have the correct capacitor type, voltage, and capacitance value specified by the manufacturer or a professional. Disconnect the power supply to the AC unit and follow the manufacturer’s instructions for safely removing and installing the capacitor. It is essential to double-check your work to avoid any errors that could compromise the safety and performance of the system.

Are there any safety precautions I should take when working with my AC unit or capacitor?

When working with your AC unit or capacitor, it is essential to take safety precautions to protect yourself and the system from damage. Here are some general guidelines to follow:

  1. Always disconnect the power supply to your AC unit before working on it or replacing parts, including the capacitor. This can prevent accidental electric shocks or damage to the system. 2) Use gloves, safety goggles, and other appropriate personal protective equipment (PPE) when handling electrical components. 3) Follow the manufacturer’s instructions for correct installation and handling of the capacitor and other AC unit components. 4) Do not attempt to repair or replace any parts of your AC unit if you are unsure about the process or lack experience with electrical work.

By taking these safety precautions, you can minimize the risk of injury or damage to your AC unit during maintenance or repair work, ensuring a safe and efficient operation of your system for years to come. If you are unsure about any aspect of the repair process, it is always recommended to consult with a professional or the AC unit’s manufacturer.

As an Amazon Affiliate™, I earn from qualified purchases!

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