There’s nothing quite like hitting the open road in your RV, exploring new places, and enjoying the freedom that comes with it. But let’s be real, when the temperatures soar, the last thing you want is a malfunctioning RV air conditioner. That’s where a reliable RV air conditioner capacitor comes into play. Often overlooked until your AC unit starts acting up, this small but mighty component is crucial for getting your compressor and fan motor running smoothly.
A failing capacitor can lead to your AC blowing warm air, struggling to start, or simply not turning on at all. Replacing it is often a straightforward fix that can save you a bundle compared to calling a technician or buying a whole new unit. But with so many options out there, how do you pick the right one?
We’ve scoured the market to bring you a comprehensive review of the 10 best RV air conditioner capacitor options available. Whether you’re looking for a direct replacement for your Dometic or Coleman unit, or a versatile capacitor for other applications, we’ve got you covered. Let’s dive in and find the perfect capacitor to keep your RV cool and comfortable on all your adventures!
1. Fits for Dometic 3312195.000 Air Conditioner RV AC Motor Capacitor
This Dometic-compatible dual-run capacitor is a real workhorse, designed to get your RV’s air conditioner back in tip-top shape. What makes it stand out is its robust construction featuring explosion-proof technology and nickel-plated copper terminals, ensuring both safety and long-lasting performance even when the going gets tough. If your Dometic unit is struggling to start or maintain consistent cooling, this capacitor might just be the lifesaver you need.
- Key Features:
- Compatible with Dometic models like 57915.741, B595146, B59146, B59186, B59196.
- Specifications: 370VAC, 60/5 MFD, 50/60Hz, -40°F to +185°F operating temp.
- Stabilizes voltage/current for enhanced AC performance.
- Simple installation with labeled “Herm”, “Fan”, and “C” terminals.
- Durable design with explosion-proof tech and nickel-plated copper terminals.
- Pros:
- Enhances overall AC performance and reliability.
- High-quality, durable, and safe construction.
- Clear terminal labeling makes installation user-friendly.
- Wide compatibility with specific Dometic models.
- Cons:
- Requires careful specification confirmation for proper fit.
- Might not be suitable for non-Dometic units.
- User Impressions: RVers frequently praise this capacitor for its ease of installation and the immediate improvement it brings to their Dometic AC units, noting a significant boost in cooling efficiency and reduced strain on the compressor.
- See it on Amazon here
2. 14995761 1499-5761 Run Capacitor 60uF 370VAC 50/60Hz
Talk about versatility! This run capacitor isn’t just for your RV’s air conditioner; it’s a multi-talented electrical component that can also breathe new life into washing machine motors, water pumps, and other compressors. Its 60uF rating and non-polarized design make it a flexible choice for various applications, especially if you need a reliable part that’s easy to install without worrying about polarity.
- Key Features:
- Compatible with part number 14995761 (e.g., for 8535B6, 48203C966).
- Specifications: 60uF, 370VAC, 50/60Hz.
- Versatile applications: RV ACs, washer motors, compressors, water pumps.
- Non-polarized design for flexible installation.
- Pros:
- Extremely versatile, suitable for multiple appliances.
- Non-polarized for straightforward installation.
- Cost-effective solution for various motor issues.
- Cons:
- Compatibility for specific RV AC models needs thorough checking.
- May not have the specialized features of dedicated RV AC capacitors.
- User Impressions: Customers appreciate its broad applicability and report successful replacements across a range of devices, highlighting its reliability as a general-purpose run capacitor.
- See it on Amazon here
3. 3313107.018 Capacitor Compatible with Dometic RV Air Conditioner
If you’re a Dometic 13500 BTU owner, this capacitor is designed specifically with your unit in mind. This 50/5 MFD capacitor is a direct replacement for several Dometic part numbers, promising steady performance and enhanced reliability. What’s more, the manufacturer claims to have improved this product based on past customer feedback, showing a commitment to quality and customer satisfaction.
- Key Features:
- Direct replacement for Dometic 13500 BTU AC models (e.g., B57915.711C0).
- Specifications: 50/5 MFD (50+5uf+5%), 370VAC.
- Replaces part numbers 3316995.900, 3316348.900, 3100248.487.
- Labeled “Herm”, “Fan”, and “C” terminals for easy connection.
- Developed for steady performance and long-lasting durability.
- Pros:
- Specifically tailored for Dometic 13500 BTU units.
- Manufacturer’s commitment to continuous improvement.
- Ensures reliable and efficient AC operation.
- Cons:
- Limited to specific Dometic models and BTU ratings.
- Some users might still encounter compatibility nuances despite improvements.
- User Impressions: RV owners with compatible Dometic units find this capacitor to be a perfect fit, praising its ability to restore their AC’s cooling power and commenting positively on the manufacturer’s after-sales support.
- See it on Amazon here
4. 3313107.018 Capacitor Compatible with Dometic RV Air Conditioner (Heavy-Duty)
Another excellent option for Dometic RV air conditioners, this 3313107.018 replacement takes durability to the next level. Its heavy-duty metal casing and flame-retardant resin encapsulation mean it’s built to withstand the rigors of high temperatures, moisture, and electrical stress that come with life on the road. Beyond just starting your AC, it’s designed to reduce equipment noise and vibration, making your RV environment even more comfortable.
- Key Features:
- Specifications: 30μF (±5%), 370V/450VAC, 50/60Hz. (Note: different from Product 3’s 50/5 MFD, check specs carefully).
- Directly replaces 3313107.018, 3316995.900, 3316348.900, 3100248.487.
- Constructed with heavy-duty metal casing and flame-retardant resin.
- Delivers consistent starting torque and reduces noise/vibration.
- Important safety note about disconnecting power and discharging old capacitors.
- Pros:
- Exceptional durability and resistance to harsh conditions.
- Improves comfort by reducing AC noise and vibration.
- Wide compatibility with several Dometic part numbers.
- Cons:
- The 30uF capacitance rating might differ from some Dometic models requiring 50/5 MFD; always double-check your unit’s specific requirements.
- Installation requires strict adherence to safety precautions due to residual charge.
- User Impressions: Users value the sturdy build quality and report a noticeable decrease in operational noise, confirming its effectiveness in ensuring smooth, quiet AC performance. The safety warnings are also appreciated.
- See it on Amazon here
5. 3314471.017 RV Air Conditioner Motor Capacitor Compatible
Give your Dometic RV air conditioning system a boost with this high-quality motor capacitor. What sets this one apart is its ability to not only get your AC running faster but also to reduce energy consumption and potentially extend the lifespan of your compressor and other system components. It’s an investment in your AC’s longevity and efficiency, wrapped up in an easy-to-install package.
- Key Features:
- High-quality materials designed for RV AC systems.
- Helps AC motors start faster and reduces energy consumption.
- Extends the service life of compressors and related components.
- Easy installation with clearly labeled “Herm”, “Fan”, and “C” terminals.
- Specifications: 55+15 uF ±6% 370/440V AC.
- Widely applicable beyond RV AC, including heat pumps and other compressors.
- Pros:
- Promotes energy efficiency and extends component life.
- Dual-purpose (55+15uF) for various Dometic applications.
- Straightforward installation process.
- Cons:
- Specific uF rating means it’s not a universal fit for all Dometic units.
- Some users might find the ‘hard start kit’ term confusing if it’s primarily a run capacitor.
- User Impressions: Owners are happy with the noticeable improvement in their AC’s starting power and efficiency, often commenting on how quickly their units cool down after installing this capacitor.
- See it on Amazon here
6. 8333A9021 Air Conditioner Hard Start Kit by AMI PARTS
Sometimes, a single capacitor isn’t enough – you need a full hard start kit! This AMI PARTS kit is a game-changer for Dometic 8000 series 13500 BTU and 11,000 BTU air conditioners, especially if you’re dealing with low voltage issues or frequent AC cycling. It includes a start capacitor, a PTCR start device, an installation bracket, and connecting wires, giving your AC the extra “oomph” it needs to kick off reliably and extend its lifespan.
- Key Features:
- Complete kit: start capacitor, PTCR start device, installation bracket, wires.
- Fits Dometic 8000 series 13500 BTU and 11,000 BTU ACs.
- Solves frequent starting/shutting down due to low voltage.
- Accelerates starting speed and stabilizes temperature changes.
- Extends AC lifespan.
- Wide compatibility with numerous Dometic model and series numbers.
- Pros:
- Comprehensive solution for problematic AC starts.
- Effectively addresses low voltage issues.
- Significantly extends the overall life of the AC unit.
- Comes with all necessary components for installation.
- Cons:
- Installation might be slightly more complex than a simple capacitor replacement.
- Primarily for specific Dometic 8000 series units.
- User Impressions: Many RVers describe this kit as a “must-have” for older or finicky Dometic ACs, reporting powerful and consistent starts even in challenging conditions, ultimately saving them from costly AC replacements.
- See it on Amazon here
7. 3312195.000 RV AC Air Conditioner Motor Capacitor 60/5 MFD
This RV air conditioner capacitor is a solid choice for Dometic owners looking for a direct and effective replacement. Similar to Product 1, it’s a dual-run capacitor (60/5 MFD) that’s all about boosting your AC’s performance and keeping it running smoothly. Engineered with explosion-proof technology and nickel-plated copper terminals, it emphasizes safety and longevity, making it a reliable component for your RV’s cooling system.
- Key Features:
- Wide compatibility with Dometic 3312195.000, 57915.741, B595146, etc.
- Specifications: 370VAC, 60/5 MFD, 50/60Hz, -40°F to +185°F operating temp.
- Stabilizes voltage/current for enhanced AC performance and efficiency.
- Easy installation with clearly labeled “Herm”, “Fan”, and “C” terminals.
- Built with explosion-proof technology and nickel-plated copper terminals for durability and safety.
- Pros:
- Reliable dual-run functionality for compressor and fan.
- Designed for longevity and safety in tough conditions.
- Improves system efficiency and consistent cooling.
- Cons:
- Requires specific Dometic model verification before purchase.
- May be overkill if only a fan capacitor is needed.
- User Impressions: Users report excellent results, noting that their Dometic AC units run cooler and quieter after replacing the old capacitor with this model. Its sturdy build quality is also a common point of praise.
- See it on Amazon here
8. VEXUNGA 7.5uF 370/440VAC 50/60Hz CBB65 CBB65A Oval Run Capacitor
For those needing a compact yet powerful oval run capacitor, the VEXUNGA 7.5uF is an excellent option. Its compatibility with both 370V and 440V systems makes it incredibly versatile, reducing the guesswork often involved in capacitor replacements. The compact oval design (1.24″ x 2.03″ x 2.17″) ensures it can fit into tighter spaces, making it a super easy direct replacement for various existing capacitors.
- Key Features:
- Specifications: 7.5uF ±6%, 370/440 VAC, 50/60Hz.
- Oval CBB65 CBB65A run capacitor.
- Operating temperature: -40℃ to +70℃.
- Compact size: (1.24in / 31.5mm) x (2.03in / 51.5mm) x (2.17in / 55mm).
- Direct replacement for various part numbers (e.g., 27L566, 97F9001).
- Pros:
- Compatible with a wide range of voltage systems (370V & 440V).
- Compact size for versatile fitting.
- Super easy direct replacement, no wiring changes needed.
- Cons:
- Lower MFD (7.5uF) means it’s likely for fan motors only, not dual-run or compressor applications.
- Specific shape might not fit all mounting brackets.
- User Impressions: Customers love the “plug and play” nature of this capacitor, highlighting its easy installation and how effectively it solves issues related to AC fan motors or other small motor applications.
- See it on Amazon here
9. KOLEOLL 1499-5461 Fan Capacitor for Coleman Air Conditioners
If your Coleman RV air conditioner’s fan is just humming or struggling to get going, this 1499-5461 fan capacitor is your go-to solution. What truly makes it shine is its exceptional high-temperature adaptability and durable, stable performance, even in challenging environmental conditions. It’s designed to minimize inconvenient capacitor failures, ensuring your RV furnace (and AC fan) operates efficiently when you need it most, simplifying maintenance in the long run.
- Key Features:
- Fits Coleman 024-20063-000, 12907, 12931, 27L695, and more.
- Top-quality, high-temperature AC capacitor.
- Durable and stable performance for reliable electrical support.
- Simplifies maintenance and extends the lifespan of your RV furnace/AC fan.
- Professional post-purchase support.
- Pros:
- Specialized for Coleman AC fan motors.
- Exceptional high-temperature resistance.
- Contributes to extended appliance lifespan.
- Reliable performance in demanding conditions.
- Cons:
- Exclusively a fan capacitor, not suitable for compressor start or run.
- Compatibility is specific to Coleman models.
- User Impressions: Coleman owners rave about how this capacitor brings their sluggish AC fans back to life, praising its robust construction and the peace of mind it provides regarding reliability during hot weather.
- See it on Amazon here
10. XXHCML 1499-5461 Fan Capacitor for Coleman RV Air Conditioner
Another excellent fan capacitor option for Coleman RV air conditioners, this XXHCML 1499-5461 ensures your Coleman Mach Series unit keeps its cool. With a clear 7.5 Microfarad rating and 370 VAC / 50/60Hz power rating, it’s built to directly replace the original fan capacitor, guaranteeing compatibility and efficient operation for your fan motor. It’s a straightforward, effective fix to get that airflow going strong again.
- Key Features:
- Specifically replaces 1499-5461 Fan Capacitor for Coleman RV Air Conditioner.
- Fits Coleman Mach Series AC models (e.g., 67, 733, 737, 753, 763, 833).
- Microfarad Rating: 7.5.
- Power Rating: 370 VAC / 50/60Hz.
- Designed for fan motor applications.
- Pros:
- Guaranteed compatibility with Coleman Mach Series fan motors.
- Clear specifications for easy matching.
- Restores optimal fan operation.
- Cons:
- Only for fan motors; will not solve compressor issues.
- Limited to Coleman-specific applications.
- User Impressions: RVers with Coleman Mach Series units find this capacitor to be a perfect, no-fuss replacement, quickly resolving fan-related problems and restoring proper airflow without any complicated installation steps.
- See it on Amazon here
Frequently Asked Questions About RV AC Capacitors
Q1: What exactly does an RV air conditioner capacitor do?
A: An RV air conditioner capacitor acts like a small, temporary battery that stores an electrical charge and then releases it quickly to provide the initial burst of power (torque) needed to start the compressor and/or fan motor in your AC unit. Once the motor is running, a run capacitor continues to store and release current to maintain efficient motor operation.
Q2: How do I know if my RV AC capacitor is bad or failing?
A: Common symptoms of a failing capacitor include your RV AC unit humming but not starting, the fan running but the compressor not kicking in (or vice versa), the unit struggling to blow cold air, or repeatedly turning on and off. Sometimes, a visibly swollen or leaky capacitor indicates it’s bad.
Q3: Can I replace my RV air conditioner capacitor myself?
A: Yes, replacing an RV air conditioner capacitor is a common DIY repair for many RV owners. However, it’s crucial to prioritize safety. Always disconnect all power to your RV AC unit and safely discharge the old capacitor using an insulated screwdriver before handling it, as it can store a dangerous electrical charge even when the power is off. If you’re unsure, it’s best to consult a professional.
Q4: What’s the difference between a start capacitor and a run capacitor?
A: A start capacitor provides a large initial burst of power to get the motor spinning from a standstill, and then it disengages once the motor is up to speed. A run capacitor, on the other hand, stays in the circuit the entire time the motor is operating, helping to maintain its efficiency and smooth running. Many RV AC units use a dual-run capacitor, which combines both the compressor run capacitor and the fan run capacitor into a single unit. Hard start kits often include a start capacitor in addition to the run capacitor to provide extra starting power.
Q5: How do I choose the right RV AC capacitor for my unit?
A: The most important factors are matching the capacitance (measured in microfarads, or MFD/uF) and the voltage (VAC) of your old capacitor. You’ll find these numbers printed on the side of your existing capacitor. For dual-run capacitors, you’ll see two capacitance ratings (e.g., 50/5 MFD, where 50 is for the compressor and 5 is for the fan). Always ensure the voltage rating of the new capacitor is equal to or higher than the original. Compatibility with your specific AC brand and model (e.g., Dometic, Coleman) is also key.
Q6: How long do RV AC capacitors typically last?
A: The lifespan of an RV AC capacitor can vary, but they generally last between 5 to 10 years. Factors like extreme temperatures, frequent starting and stopping, voltage fluctuations, and overall usage can impact their longevity. It’s not uncommon for them to be one of the first components to fail in an older AC unit.
Q7: Is a hard start kit necessary for my RV AC unit?
A: A hard start kit isn’t always necessary, but it can be very beneficial. It’s highly recommended if your RV AC unit struggles to start, especially in high heat, low voltage conditions (common in RV parks with weak power), or if it’s an older unit. It provides an extra boost to the compressor, making starts easier and potentially extending the life of your AC system.
Keeping Your Cool on the Road
Choosing the right RV air conditioner capacitor can make all the difference in maintaining a comfortable and stress-free RV experience. Whether you’re replacing a faulty part or upgrading for better performance, these top 10 options offer a range of reliable choices for various Dometic and Coleman models. Don’t let a minor electrical component ruin your trip – a quick and often simple replacement can have your RV’s AC blowing cold air again in no time!
