The Dometic 3100248.453 is a dual run capacitor designed specifically for Dometic RV air conditioner systems. This 25/10 MFD capacitor provides the electrical boost needed to start and run both the compressor and fan motor in your rooftop AC unit. If your air conditioner won't start, runs intermittently, or the compressor hums without starting, a failed capacitor is often the culprit—and this is the genuine OEM replacement part.

Key Features

• Dual Capacitance: 25 MFD for compressor start/run, 10 MFD for fan motor operation
• OEM Dometic Part: Genuine replacement component engineered to exact factory specifications
• Direct Fit Replacement: Designed for quick installation in Dometic rooftop air conditioner units
• High-Temperature Rated: Built to withstand the extreme heat conditions inside RV air conditioner housings
• Reliable Performance: Restores proper compressor and fan motor operation for efficient cooling

Technical Specifications

Part Number	3100248.453
Capacitance	25/10 MFD (Dual)
Application	RV Air Conditioner (Compressor & Fan Motor)
Voltage Rating	370 VAC
Terminal Type	Spade Terminals

Frequently Asked Questions

How do I know if my capacitor has failed?

Common symptoms include: AC unit won't start, compressor hums but doesn't run, intermittent cooling, or the unit trips the breaker. Capacitors can also bulge or leak when they fail. Always discharge capacitors safely before testing or replacing.

What does the 25/10 MFD rating mean?

This is a dual capacitor with two separate capacitance values. The 25 MFD section powers the compressor, while the 10 MFD section runs the fan motor. Both functions are housed in a single component for space efficiency in RV applications.

Can I replace this capacitor myself?

If you're comfortable working with electrical components and understand safety procedures, yes. Always turn off power at the breaker, discharge the old capacitor properly, take a photo of wire connections before removal, and match wire colors to the same terminals on the new capacitor. When in doubt, consult a qualified RV technician.

Will this work in other brands of RV air conditioners?

This capacitor is engineered specifically for Dometic air conditioner systems. While the electrical ratings may match other brands, mounting configurations and terminal arrangements can vary. Always verify compatibility with your specific unit model before ordering.

Why Choose Elkhart RV Parts?

At ElkhartRVParts.com, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Located in Elkhart, Indiana—the RV Capital of the World—we understand the importance of getting the right part quickly. We stock genuine OEM Dometic components and ship fast so you can get back on the road.

Our team knows Dometic systems inside and out. Whether you're troubleshooting an air conditioner issue or need help identifying the correct replacement part, we're here to help with expert support and authentic parts you can trust.