This Dometic run capacitor is an essential replacement component for RV air conditioning systems, refrigerators, and other motorized appliances. If your Dometic unit is struggling to start, running inefficiently, or making unusual humming sounds, a failed capacitor is often the culprit. This genuine OEM part restores proper motor operation and system performance.
Key Features
- 40 microfarad (MFD) capacitance rating for precise motor operation
- 440 VAC voltage rating suitable for high-demand RV applications
- Genuine OEM Dometic part ensures compatibility and reliability
- Direct replacement—no modifications needed
- Commonly used in air conditioning compressors and refrigeration units
- Long-lasting performance in RV environments
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 290330855 |
| Capacitance | 40 MFD |
| Voltage Rating | 440 VAC |
| Type | Run Capacitor |
| Manufacturer | Dometic |
Frequently Asked Questions
Q: How do I know if my capacitor has failed?
A: Common signs include the motor not starting, humming without running, reduced cooling performance, or the unit shutting down unexpectedly. A failed capacitor often has a bulged or leaking top.
Q: Can I use a different MFD rating?
A: No. Using an incorrect capacitance rating can damage your motor or appliance. Always match the exact MFD and voltage specifications from your Dometic unit's documentation.
Q: Is this capacitor compatible with my RV model?
A: This part fits Dometic air conditioning units, refrigerators, and other appliances that use 40MFD 440VAC run capacitors. Verify the part number on your existing capacitor or consult your Dometic manual to confirm compatibility.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM stock backed by expert support to help you get the right component the first time.
| Product_name | Dometic Replacement Run Capacitor 40MFD 440VAC |
|---|---|
| Part_number | 290330855 |
| Manufacturer | Dometic |
| Product_type | Run Capacitor |
| Capacitance_mfd | 40 |
| Voltage_rating_vac | 440 |
| Part_category | Service Part |
| Is_oem | true |
| Compatible_systems | Dometic Penguin air conditioning unitsDometic Brisk Air air conditioning unitsDometic Americana air conditioning unitsDometic RV refrigerator models with 440VAC compressors |
| Intended_use | Air conditioning compressorsRefrigeration compressors |
| Product_status | New Arrival |
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.