There’s nothing quite like hitting the open road in your RV, exploring new places, and making memories. But when your Dometic RV air conditioner starts acting up, that blissful journey can quickly turn into a sweaty nightmare. Often, the culprit behind a struggling AC unit is a faulty capacitor. This small, but mighty component is crucial for getting your compressor and fan motors running smoothly.
Replacing the capacitor for Dometic RV air conditioner isn’t as daunting as it sounds, and doing so can save you a pretty penny compared to a full service call. To help you get your cool back, we’ve rounded up seven top-notch replacement capacitors that are perfect for your Dometic unit. We’ll dive into what makes each one stand out, so you can pick the best fit for your mobile sanctuary.
Why Your RV AC Needs a Healthy Capacitor
Before we jump into the reviews, let’s quickly chat about why these little powerhouses are so important. In your Dometic RV air conditioner, the capacitor acts like a battery that gives the compressor and fan motors a “kick-start” and helps them run efficiently. Without it, your AC might hum but not start, blow warm air, or simply fail to switch on. A fresh capacitor for Dometic RV air conditioner can restore your unit’s performance and extend its lifespan.
Our Top Picks: 7 Capacitors for Dometic RV Air Conditioners
Let’s get down to business and explore some of the best replacement capacitors available.
1. Fits for Dometic 3312195.000 Air Conditioner RV AC Motor Capacitor
This capacitor is a real workhorse, designed to bring robust performance back to a range of Dometic RV air conditioner models. What makes it stand out is its commitment to reliability and enhanced AC performance, ensuring your system runs smoothly and efficiently even in challenging conditions. It’s built to stabilize voltage and current, optimizing motor speed and power to keep you cool without a hitch.
- Compatibility: Designed for popular Dometic RV AC models like 57915.741, B595146, B59146, B59186, and B59196.
- Key Specifications: 370VAC, 60/5 MFD, 50/60Hz, Operating Temperature: -40°F to +185°F (-40°C to +85°C), 21-day Humid Heat Test.
- Easy Installation: Features clearly labeled “Herm” (compressor), “Fan” (fan motor), and “C” (common) terminals.
- Durable & Safe Design: Built with explosion-proof technology and nickel-plated copper terminals for enhanced safety and longevity.
Pros:
– Broad compatibility with several Dometic models.
– Exceptional temperature range for diverse environments.
– Dual-run (2-in-1) design simplifies wiring.
– High-quality, durable construction for long-term use.
Cons:
– Requires users to confirm their specific AC specifications for a proper fit.
User Impressions:
Users frequently praise this capacitor for its straightforward installation process and the noticeable improvement in their Dometic RV AC’s performance. Many highlight its solid build quality, giving them confidence in its durability on the road.
2. 3313107.018 Capacitor Compatible with Dometic RV Air Conditioner (Drker Brand)
When your 13500 BTU Dometic unit needs a new lease on life, this 3313107.018 capacitor by Drker is a solid contender. It’s specifically engineered to provide consistent starting performance and sustained reliability, making it an excellent direct replacement. The manufacturer emphasizes continuous improvement based on customer feedback, aiming to deliver a dependable component for your AC’s critical functions.
- Compatible Models: Designed for Dometic 13500 BTU Air Conditioner Models: B57915.711C0, B57915.711J0.
- Product Parameters: 50/5 Microfarad (MFD), 370VAC, labeled terminals (Herm/Fan/C).
- Replacement Part: Replaces part numbers 3316995.900, 3316348.900, 3100248.487.
- High Quality: Developed for steady performance, reliability, and extended durability.
- After-Sales Service: Commitment to customer satisfaction and continuous product improvements.
Pros:
– Direct compatibility with specific 13500 BTU Dometic models.
– Robust construction ensures reliable and efficient operation.
– Good post-purchase support emphasized by the brand.
Cons:
– Primarily designed for specific 13500 BTU Dometic units, limiting broader application.
User Impressions:
Owners of compatible Dometic 13500 BTU units often report that this capacitor is a perfect fit, restoring their AC’s cooling power instantly. The focus on quality and customer service is a reassuring point for many buyers.
3. 3313107.018 Capacitor Compatible with Dometic RV Air Conditioner (Generic Brand)
Here’s another option bearing the 3313107.018 part number, but with a strong emphasis on rugged construction and superior operational performance. This capacitor is built with heavy-duty materials designed to withstand the harsh conditions often encountered in RVing, from extreme temperatures to moisture. It promises not just to start your AC, but to do so with less noise and vibration, making your RV environment more peaceful. (Note: While the product description initially mentions 30uF, other details confirm it’s a 50+5uf component, aligning with the 3313107.018 part number often found on 50/5 MFD capacitors.)
- Product Parameter: 50+5uF (±5%) capacitance rating with a 370V/450VAC operating voltage and 50/60Hz frequency.
- Perfect Compatibility: Engineered as a direct replacement for 3313107.018, also fits 3316995.900, 3316348.900, and 3100248.487.
- Durable Materials: Features a heavy-duty metal casing and flame-retardant resin encapsulation for resistance to high temperatures, moisture, and electrical stress.
- Superior Performance: Delivers consistent starting torque and smooth motor operation, reducing equipment noise and vibration.
- Important Safety Note: Reminds users to disconnect all power and safely discharge old capacitors before installation.
Pros:
– Excellent resistance to environmental stressors thanks to robust materials.
– Contributes to quieter and smoother AC operation.
– Explicit safety reminder is a good touch for DIYers.
Cons:
– Initial conflicting MFD spec in the description can be confusing (though clarified by other details).
User Impressions:
Customers appreciate the robust feel of this capacitor and note that it effectively reduces the operational noise of their AC units. Its durable design instills confidence in its long-term reliability for RV use.
4. 3312195.000 RV AC Air Conditioner Motor Capacitor 60/5 MFD
Very similar to our first product, this 3312195.000 capacitor again highlights its wide compatibility and dual-run functionality. It’s pitched as an excellent way to boost your Dometic RV air conditioner’s performance, stabilizing its voltage and current for consistent cooling power. With its clear installation instructions and heavy-duty construction, it aims to be a reliable and long-lasting replacement part.
- Wide Compatibility: Perfect replacement for 3312195.000 motor capacitors, compatible with RV AC models like 57915.741, B595146, B59146, B59186, and B59196.
- Detailed Specifications: 370VAC, 60/5 MFD, 50/60Hz, Operating Temperature: -40°F to +185°F (-40°C to +85°C), 21-day Humid Heat Test.
- Boosts AC Performance: Stabilizes voltage/current and fine-tunes motor speed for reliable and efficient operation.
- Easy to Install: Features clearly labeled terminals for compressor, fan motor, and common line, simplifying installation.
- Built for Longevity and Safety: Engineered with explosion-proof technology and nickel-plated copper terminals.
Pros:
– Versatile compatibility with multiple Dometic models.
– Excellent performance enhancement and efficiency.
– User-friendly installation for DIY enthusiasts.
– Durable and safe design for demanding RV conditions.
Cons:
– Still requires careful verification of your AC’s original specifications.
User Impressions:
Reviewers consistently mention how this capacitor solved their intermittent AC issues, praising its reliability and the ease with which it can be swapped out. It’s often considered a great value for the performance boost it provides.
5. Screw Man RV Air Conditioner Motor Capacitor 55/15 MFD
The Screw Man 3314471.017 capacitor focuses not just on starting your motor, but also on protecting it and improving your Dometic RV air conditioner’s overall energy efficiency. This unit is designed to provide that extra current needed for a smooth motor start, reducing stress on your electrical grid and safeguarding motor windings. It’s a smart choice if you’re looking for a capacitor that contributes to both immediate performance and long-term equipment health.
- Model Number: 3314471.017 Air Conditioner Motor Capacitor.
- Motor Protection: Provides extra current for smooth motor starting, reducing stress and protecting windings.
- Improve Power Factor: Stores and releases electrical energy to increase power utilization and energy efficiency.
- Enhance Energy Efficiency: Adjusts motor speed and power to improve cooling/heating while reducing energy consumption.
- Stabilizes Voltage & Current: Helps maintain balance, reducing motor noise and vibration.
Pros:
– Proactively protects the motor, extending its life.
– Contributes to noticeable energy savings.
– Reduces operational noise and vibration for a quieter ride.
Cons:
– Less specific compatibility information provided compared to others.
User Impressions:
Customers who’ve installed this capacitor appreciate the perceived reduction in strain on their AC units and often note a smoother, quieter startup. The emphasis on energy efficiency is a big draw for many RVers.
6. 3314471.017 RV Air Conditioner Motor Capacitor Compatible with Dometic
This 3314471.017 model is another excellent choice for Dometic RV AC owners, specifically highlighting its high-quality construction and the extended service life it offers. Made from premium materials, this capacitor is designed to withstand the rigors of RV life, helping your compressor start faster and consume less energy. It’s a comprehensive solution, aiming to prolong the life of your entire AC system.
- High Quality: Made from high-quality materials, specifically designed for RV air conditioning systems.
- Long Service Life: Helps AC motor capacitors start faster, reduces energy consumption, and extends the service life of compressors and related components.
- Easy to Install: Clearly labeled “Herm,” “Fan,” and “C” terminals for quick, simple installation.
- What You’ll Receive: One piece 3314471.017 capacitor service kit compatible with Dometic 55+15 uF ±6% 370/440V AC.
- Widely Applicable: Can be used for RV air conditioning upgrades, compressors, heat pump AC, and other AC motors.
Pros:
– Focus on extending the lifespan of the entire AC system.
– Versatile with broad applicability beyond just Dometic RV ACs.
– Clear, easy-to-follow installation instructions.
Cons:
– Specific MFD (55/15) means it’s essential to match your existing unit precisely.
User Impressions:
Many users report a quick and easy installation, often noting that their Dometic AC units kick back to life with renewed vigor. The promise of extended component life is a significant selling point for budget-conscious RVers.
7. 3314471.017 RV Air Conditioning Capacitor is Compatible with Dometic
Rounding out our list is another 3314471.017 capacitor that’s specifically touted as a repair kit for your Dometic RV air conditioning unit. Its clear compatibility with Dometic systems and its dual-purpose nature for both AC motors and heat pump air conditioners make it a practical and reliable choice. If you’re looking for a straightforward, effective replacement for your Dometic 55/15 MFD system, this one fits the bill.
- Compatibility: 3314471.017 RV air conditioning capacitor is compatible with Dometic 55/15 MFD 55+15 uF±6% 370/440V AC Capacitor Repair kit.
- Suitable For: AC Motors or Heat Pump air conditioners.
Pros:
– Direct, clear compatibility with Dometic 55/15 MFD units.
– Dual functionality for both AC and heat pump applications.
– Presented as a convenient “repair kit” for easy ordering.
Cons:
– Less detailed information provided on construction materials or specific performance enhancements compared to other options.
User Impressions:
Customers find this capacitor to be a reliable and exact fit for their Dometic units. It’s often chosen for its simple effectiveness in getting their AC or heat pump back up and running without fuss.
Getting Your Cool Back
Choosing the right capacitor for Dometic RV air conditioner is a simple yet impactful way to restore comfort to your RV. Always double-check your existing capacitor’s MFD (microfarad) and VAC (voltage) ratings to ensure you get a perfect match. With one of these reliable options, you’ll be enjoying cool, comfortable RV adventures again in no time!
FAQ Section: All Your Dometic RV AC Capacitor Questions Answered
Replacing an RV AC capacitor can seem a bit technical, but with the right info, you’ll be a pro in no time. Here are some common questions answered to help you out!
Q1: What exactly does a capacitor do in an RV AC unit?
A1: Think of a capacitor as a temporary energy storage device. In your Dometic RV AC, it provides the initial burst of electricity needed to start the compressor and fan motors. Once they’re running, it helps them operate efficiently by maintaining a stable current. Without it, your AC motors can’t get enough “oomph” to kick into action.
Q2: How do I know if my Dometic RV AC capacitor is bad?
A2: There are several tell-tale signs. Your Dometic AC might hum but not start, the fan might run but the compressor doesn’t (meaning no cold air), or the unit might just fail to turn on at all. Sometimes, a visibly swollen or leaking capacitor is a clear indicator. If you hear a clicking sound but nothing happens, that’s another common symptom.
Q3: Is it difficult to replace an RV AC capacitor myself?
A3: For most RVers with basic DIY skills, replacing a capacitor is a relatively simple task. The key is to ALWAYS disconnect shore power and battery power to the RV and safely discharge the old capacitor before touching it. Capacitors can store a dangerous electrical charge even after power is off. With a screwdriver (for discharging) and a wrench/nut driver, it’s a manageable job.
Q4: What do the numbers 50/5 MFD and 370VAC on a capacitor mean?
A4:
– MFD (Microfarad): This indicates the capacitance, or the amount of electrical charge the capacitor can store. A “50/5 MFD” capacitor is a “dual run” capacitor, meaning it has two separate capacitance values for two motors: 50 MFD for the compressor (Herm/H terminal) and 5 MFD for the fan motor (Fan/F terminal).
– VAC (Volts Alternating Current): This is the maximum voltage the capacitor is rated to handle. Always replace a capacitor with one that has the same or a higher VAC rating. A 370VAC capacitor can safely be replaced by a 440VAC, but not vice versa.
Q5: Can I use any capacitor for my Dometic RV AC?
A5: No, you can’t. It’s crucial to replace your old capacitor with one that has the exact same MFD rating (e.g., 50/5 MFD, 30 MFD, 55/15 MFD) and an equal or higher VAC rating. Using the wrong capacitor can damage your AC motor or cause it to run inefficiently. Always verify your specific Dometic model and the specifications of your existing capacitor.
Q6: How long do RV AC capacitors typically last?
A6: The lifespan of an RV AC capacitor can vary, but they generally last anywhere from 3 to 10 years. Factors like extreme heat, frequent cycling of the AC, and voltage fluctuations can shorten their life. It’s a good idea to inspect your capacitor periodically, especially if you live in hot climates or use your RV AC extensively.
Q7: What safety precautions should I take when replacing an RV AC capacitor?
A7: Safety first!
1. Disconnect All Power: Turn off the breaker at the RV pedestal and disconnect your RV’s battery to ensure no power is flowing.
2. Discharge the Capacitor: Using a well-insulated screwdriver with an insulated handle, short the terminals of the old capacitor one by one (C to Herm, C to Fan, Herm to Fan for dual run capacitors) by touching the metal shaft across them. You might see a spark, indicating it’s discharged. Wait a few minutes and repeat to be sure.
3. Wear Gloves: Use electrical safety gloves for added protection.
4. Avoid Touching Terminals: Don’t touch the terminals of a charged capacitor directly with your bare hands.