There’s nothing worse than hitting the open road in your RV, ready for adventure, only to find your air conditioner sputtering or failing on a scorching hot day. Often, the culprit is a worn-out capacitor – a small but mighty component vital for your AC’s proper function. Whether it’s helping the compressor kick into gear or keeping the fan motor humming, a healthy capacitor is key to a comfortable RV experience.
Finding the best capacitor for Coleman Mach air conditioner can feel a bit daunting with all the different specs and models out there. But don’t sweat it! We’ve done the legwork to bring you a roundup of top contenders that will help keep your Coleman Mach unit running smoothly. We’ll look at options for various needs, from standard replacements to hard start kits, ensuring your RV stays a cool oasis, no matter the outside temperature.
Why a Good Capacitor Matters for Your RV AC
Your RV air conditioner relies on capacitors to store and release electrical energy, giving the motors the necessary jolt to start and run efficiently. A failing capacitor can lead to issues like your AC blowing warm air, making strange noises, or simply not turning on at all. Replacing it is a common and relatively straightforward RV AC repair that can save you a lot of discomfort and potentially costly professional service down the line. Let’s dive into some of the top picks for your Coleman Mach system!
The 5 Best Capacitors for Coleman Mach Air Conditioner
1. 1499-5731 Run Capacitor for Coleman Mach RV Air Conditioner

This run capacitor is a solid choice for those looking for an OEM-compatible replacement that’s built to last. It’s designed specifically for Coleman Mach units, making it a reliable plug-and-play option for maintaining the performance of your RV’s cooling system. If your AC fan or compressor is struggling to start or running inefficiently, this capacitor could be exactly what you need to get things back in tip-top shape.
- Key Features:
- OEM-Compatible with Coleman Mach Units: Direct replacement for original part.
- Ideal for RV Rooftop A/C Systems: Fits various popular Coleman Mach models.
- 45 MFD ±5% | 370V AC Rating: Engineered for consistent electrical performance.
- Durable CBB65 Construction: Made with high-grade metallized polypropylene film and anti-rust aluminum housing.
- Fast & Easy Installation: Standard dual-terminal round design for quick plug-in replacement.
- Pros:
- Ensures proper fan motor function and system reliability.
- Built to withstand tough RV environments (vibration, moisture, heat).
- Specific compatibility reduces guesswork for installation.
- Cons:
- Requires checking existing capacitor’s microfarad (µF) and voltage for an exact match.
- Not a universal fit for all Coleman Mach models.
- User Impressions: Customers often praise this capacitor for its perfect fit and ease of installation, noting that it brought their Coleman Mach AC back to life. Many appreciate its durability, reporting consistent performance even after prolonged use in varying conditions.
- See it on Amazon here
2. XXHCML 1499-5461 Fan Capacitor for Coleman RV Air

When your Coleman Mach RV air conditioner’s fan isn’t spinning as it should, this XXHCML 1499-5461 Fan Capacitor might be the quick fix you need. This unit specifically targets the fan motor, ensuring proper airflow and cooling throughout your RV. It’s a dedicated solution for models that primarily need a fan capacitor replacement, bringing that refreshing breeze back to life.
- Key Features:
- 1499-5461 Fan Capacitor: Direct replacement for Coleman RV Air Conditioner fan.
- Microfarad Rating: 7.5 µF, ensuring precise power delivery to the fan motor.
- Power Rating: 370 VAC / 50/60Hz, compatible with standard RV electrical systems.
- Compatible with Coleman Mach Series Air Conditioners: Fits various specific models.
- Pros:
- Specifically designed to restore fan functionality.
- Good for older or specific Coleman Mach models (check compatibility list).
- Straightforward replacement part.
- Cons:
- Only for the fan, not suitable for compressor issues.
- Limited compatibility to certain model numbers (e.g., 67/733/737/753/763/833).
- User Impressions: RV owners who’ve used this capacitor generally find it to be an effective and affordable solution for fixing their AC fan problems. They highlight its exact fit for specified models and the noticeable improvement in air circulation after installation.
- See it on Amazon here
3. AMI PARTS 8333A9021 Air Conditioner Hard Start Kit

Sometimes, your Coleman Mach AC needs more than just a simple capacitor replacement – it needs a boost! The AMI PARTS 8333A9021 Hard Start Kit is designed to give your air conditioner the extra oomph it needs to start smoothly, especially in low-voltage situations or when your compressor is getting older. This kit extends the lifespan of your unit by reducing strain during startup, making it an excellent investment for sustained RV comfort.
- Key Features:
- Perfect Combination: Includes start capacitor, PTCR start device, installation bracket, and connecting wires.
- Extended Life Span: Solves frequent starting/shutting down due to low voltage, accelerates AC startup speed.
- Wide Compatibility: Fits all 8000 series 13500 BTU and 11,000 BTU air conditioners, along with many other Coleman Mach models.
- Easy to Install: Comes with all necessary components for a comprehensive upgrade.
- Pros:
- Significantly improves startup reliability and efficiency.
- Protects the compressor from damage due to voltage fluctuations.
- A comprehensive kit with everything you need.
- Cons:
- More involved installation compared to a standard run capacitor.
- May not be necessary if only the run capacitor is faulty.
- User Impressions: Reviewers often rave about how this hard start kit transforms their struggling AC units. They report quieter startups, no more tripping breakers, and a renewed sense of confidence in their RV’s cooling capabilities, especially when operating on generator power or shore power with lower amperage.
- See it on Amazon here
4. KOLEOLL 1499-5461 Fan Capacitor for Coleman Air

Another excellent option for your Coleman Mach fan motor, the KOLEOLL 1499-5461 Fan Capacitor stands out for its emphasis on durability and stable performance under challenging conditions. If you’re looking for a replacement that can handle the heat and vibrations typical of RV life, this high-temperature AC capacitor is engineered to deliver reliable electrical support, minimizing unexpected breakdowns during your travels.
- Key Features:
- Top-Quality High-Temperature AC Capacitors: Endures rigorous environmental conditions.
- Durable and Stable Performance: Renowned for exceptional high-temperature adaptability and consistent output.
- Simplified Maintenance, Extended Lifespan: Easy to install and extends the life of your RV furnace/AC fan.
- Professional Assurance: Backed by a professional team for post-purchase support.
- Pros:
- Built for extreme temperatures, ideal for RV use.
- Delivers consistent and reliable performance.
- Offers peace of mind with robust construction and customer support.
- Cons:
- Specific microfarad rating (check your existing unit).
- Primary focus is on fan motor support, not compressor.
- User Impressions: Users frequently commend the KOLEOLL capacitor for its robust build and reliability, particularly in hot climates. They appreciate the peace of mind that comes with a durable component and the responsive customer service, making it a trusted choice for maintaining their RV’s cooling system.
- See it on Amazon here
5. BOJACK 8333A9021 Air Conditioner Hard Start Kit

Similar to the AMI PARTS offering, the BOJACK 8333A9021 Hard Start Kit is another fantastic choice for enhancing the performance of your Coleman Mach air conditioner. This kit is all about ensuring your AC starts reliably and operates efficiently, especially when facing low voltage or an aging compressor. It’s a vital upgrade for RVers who want to protect their investment and enjoy consistent cooling, reducing the chances of frustrating AC issues on the road.
- Key Features:
- Hard Start Kit Combination: Includes 1 start capacitor, 1 PTCR start device, 1 connecting wires, 1 installation strap.
- Enhanced Performance: Solves frequent starting/shutting down due to low voltage, protects equipment.
- Wide Compatibility: Fits all 8000 series 13500 BTU and 11,000 BTU AC units, and many other Coleman Mach models.
- Safety First: Emphasizes disconnecting power and allowing discharge before installation.
- Pros:
- Improves startup reliability and efficiency significantly.
- Prevents compressor damage from low voltage and frequent cycling.
- Comprehensive kit for a complete hard start upgrade.
- Cons:
- Installation requires careful attention to safety procedures.
- May be overkill if your AC issues are solely fan-related.
- User Impressions: Many RV enthusiasts have found the BOJACK hard start kit to be a game-changer for their Coleman Mach units. They report noticeable improvements in startup performance, reduced current draw, and greater overall cooling efficiency, especially when boondocking or using smaller generators.
- See it on Amazon here
Wrapping Up: Choosing the Best Capacitor for Coleman Mach Air Conditioner
Choosing the right capacitor for your Coleman Mach RV air conditioner is crucial for uninterrupted comfort on your travels. Whether you need a standard run capacitor like the 1499-5731 for general reliability, a dedicated fan capacitor like the XXHCML or KOLEOLL 1499-5461 for improved airflow, or a comprehensive hard start kit from AMI PARTS or BOJACK to tackle tough startup issues, there’s a solution out there.
Remember to always check your existing capacitor’s microfarad (µF) and voltage ratings, as well as your specific Coleman Mach model number, to ensure you get the perfect match. A little preventative maintenance or a timely replacement can make all the difference between a sweltering RV and a cool, relaxing sanctuary on your next adventure. Happy trails and stay cool!
FAQ: Your Coleman Mach AC Capacitor Questions Answered
Q1: What does an AC capacitor do in my Coleman Mach RV air conditioner?
A: An AC capacitor stores electrical energy and releases it to help start and run the electric motors (like the compressor and fan) in your air conditioner. It provides the initial jolt needed for startup and helps maintain consistent power during operation.
Q2: How do I know if my Coleman Mach AC capacitor is bad?
A: Common signs of a failing capacitor include your AC making a humming noise but not starting, the fan running but the compressor not kicking in, warm air blowing, or the unit frequently cycling on and off. Visually, a bulging or leaking capacitor is a clear indicator it needs replacement.
Q3: What’s the difference between a run capacitor, a start capacitor, and a hard start kit?
A: A run capacitor helps keep the motor running smoothly once it has started. A start capacitor provides an extra boost of power to get the motor going. A hard start kit combines a start capacitor with a relay or PTCR device to provide even more starting torque, often used for aging compressors or in low-voltage conditions.
Q4: Can I replace my RV AC capacitor myself?
A: Yes, replacing an RV AC capacitor is a common DIY repair, but it requires caution. Capacitors can hold a dangerous electrical charge even after the power is off. Always disconnect power at the source, wait several minutes for the capacitor to discharge, and ideally, discharge it safely with an insulated screwdriver before touching it. If you’re unsure, it’s best to consult a professional.
Q5: What microfarad (µF) rating do I need for my Coleman Mach capacitor?
A: You need to match the microfarad (µF) rating exactly with your existing capacitor. This information is typically printed on the side of the capacitor itself. Do not deviate from this rating, as an incorrect µF can damage your AC motor.
Q6: Are all Coleman Mach capacitors the same?
A: No, Coleman Mach air conditioners use different capacitors depending on the specific model, BTU rating, and whether it’s for the fan motor or the compressor. Always check your unit’s specifications or the existing capacitor’s labels for the correct part number, µF, and voltage (V) ratings.
Q7: How often should I replace my AC capacitor?
A: Capacitors typically last anywhere from 5 to 10 years, but their lifespan can be shortened by extreme temperatures, power surges, or frequent use. It’s a good idea to inspect your capacitor periodically during routine RV maintenance, especially if you notice any performance issues with your AC.


