The Dometic AC Motor Capacitor 50/5 MFD (Part# 3313107.018) is a dual-rated replacement capacitor designed specifically for Dometic SVC Series rooftop air conditioners. This genuine OEM capacitor provides the electrical boost needed to start and run your AC compressor and fan motor reliably. If your RV air conditioner won't start, hums but doesn't cool, or trips the breaker, a failed capacitor is often the culprit—and this is the exact replacement part you need.

Key Features

• Dual Rating: 50 MFD for compressor start, 5 MFD for fan motor operation
• Direct OEM Replacement: Factory-specified capacitor for Dometic SVC Series air conditioners
• Heavy-Duty Construction: Built to withstand high temperatures and vibration in rooftop RV applications
• Easy Installation: Direct plug-in replacement with standard terminal configuration
• Reliable Performance: Restores proper compressor starting and fan motor operation
• Quality Tested: Meets Dometic's strict electrical and safety specifications

Technical Specifications

Part Number	3313107.018
Capacitance Rating	50/5 MFD (Dual)
Primary Use	Compressor Start (50 MFD) / Fan Motor Run (5 MFD)
Compatible Series	Dometic SVC Series Air Conditioners
Component Type	Motor Run/Start Capacitor
Application	RV Rooftop Air Conditioner

Compatibility

This capacitor is designed for Dometic SVC Series rooftop air conditioners. Verify your model number on the data plate inside your AC unit or on the ceiling assembly before ordering.

Frequently Asked Questions

How do I know if my AC capacitor has failed?

Common signs include: AC won't start but you hear humming, compressor runs hot and shuts off, fan runs but compressor doesn't start, or the unit trips your breaker. A failed capacitor is one of the most common AC failures in RVs.

Can I use a different MFD rating capacitor?

No. Always use the exact MFD rating specified by Dometic. Using incorrect capacitance can damage your compressor or fan motor and void your warranty. This 50/5 MFD rating is engineered specifically for SVC Series units.

Is this difficult to replace myself?

If you're comfortable working with electrical components and can safely disconnect power, capacitor replacement is straightforward. Always disconnect shore power and turn off the breaker before working on your AC. Take a photo of wire connections before removal to ensure correct reinstallation.

Will this fix my AC if it's not cooling?

If your AC runs but doesn't cool, and the compressor isn't starting (you'll hear humming but no compressor click), a failed capacitor is the likely cause. However, if the compressor runs but doesn't cool, you may have a refrigerant or compressor issue instead.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic RV air conditioner parts like this motor capacitor. Located in Elkhart, Indiana—the RV Capital of the World—we understand the urgency when your AC fails on the road. We stock genuine OEM Dometic parts for fast shipping, and our team knows these systems inside and out. When you need the right part fast, with expert support to back it up, Elkhart RV Parts delivers.