This Dometic dual run capacitor is an essential component for RV air conditioning and heating systems. If your Dometic HVAC unit is running inefficiently, cycling on and off, or not starting properly, a failed capacitor is often the culprit. This genuine OEM part restores proper electrical operation to get your comfort systems running smoothly again.
Key Features
- Dual capacitor design: 25MFD and 3MFD ratings in one unit
- 370V rated for Dometic RV air conditioning systems
- Genuine OEM Dometic part for guaranteed compatibility
- Direct replacement—no modifications needed
- Improves system efficiency and reduces strain on motors
- Essential for proper compressor and fan motor operation
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 290000120 |
| Capacitance (Run) | 25 MFD |
| Capacitance (Start) | 3 MFD |
| Voltage Rating | 370V |
| Type | Dual Run Capacitor |
| Manufacturer | Dometic |
Frequently Asked Questions
- How do I know if my capacitor has failed?
- Common signs include your RV air conditioner not turning on, the fan running but compressor not engaging, weak cooling output, or a humming sound without the unit starting. Capacitors typically fail after 5–10 years of use.
- Can I install this capacitor myself?
- While some RV owners with electrical experience can replace capacitors, we recommend having a qualified technician handle the installation. Capacitors store electrical charge and can be dangerous if not discharged properly before removal.
- What RV models use this Dometic capacitor?
- This part fits various Dometic air conditioning systems across many RV brands and model years. Verify the part number on your existing capacitor or check your RV's documentation to confirm compatibility before ordering.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts for RVs. Based in Elkhart, Indiana—the RV capital of the world—we stock genuine OEM Dometic components and ship quickly to RV owners nationwide. Our expert team is here to help you identify the exact part you need and answer technical questions. When your RV comfort systems need repair, trust Elkhart RV Parts for authentic Dometic parts and reliable service.
| Brand | Dometic |
|---|---|
| Part number | 290000120 |
| Product type | Dual Run Capacitor |
| Primary capacitance | 25MFD |
| Secondary capacitance | 3MFD |
| Voltage rating | 370V |
| Application | RV Air Conditioning and Cooling Systems |
| Part category | OEM Part |
| Condition | New |
| Compatibility | Dometic RV Air Conditioning Units |
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.