This genuine Dometic dual capacitor is essential for RV air conditioning and heating systems that require precise electrical conditioning. If your AC unit won't start, runs intermittently, or makes humming sounds without cooling, a failed capacitor is often the culprit. This OEM replacement restores proper motor operation and system reliability.

Key Features

• Dual capacitor design: 45MFD + 16MFD in single unit
• 370V rating for Dometic RV HVAC systems
• OEM Dometic part—exact factory specifications
• Direct replacement for failed or weak capacitors
• Improves AC startup and cooling performance
• Prevents compressor strain and motor burnout

Technical Specifications

Specification	Detail
Part Number	290337047
Capacitor Type	Dual (45MFD/16MFD)
Voltage Rating	370V
Manufacturer	Dometic
Application	RV Air Conditioning & Heating Units

Frequently Asked Questions

How do I know if my capacitor has failed?

Signs include: AC unit hums but won't start, reduced cooling power, system cycles on and off frequently, or a burning smell near the unit. A multimeter can confirm if the capacitor holds a charge.

Can I install this capacitor myself?

While possible for experienced RV owners, capacitors store electrical charge and can be dangerous. We recommend having a qualified RV technician handle installation to ensure safety and proper system operation.

What RV models use this capacitor?

This is a common Dometic dual capacitor used in many RV air conditioning systems. Verify the part number on your existing capacitor or consult your RV manual to confirm compatibility before ordering.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who need genuine OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock authentic Dometic parts and provide expert support to help you identify and install the right component for your system.