Dometic RV AC Start Capacitor 47/56 MFD 250V - Part# 3100236.235

DometicSKU: 3100236.235
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 7:40 AM

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In stock (235 units), ready to be shipped
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This Dometic RV air conditioning start capacitor is a critical component that helps your AC compressor motor start reliably and run efficiently. If your RV's air conditioner won't start, cycles on and off frequently, or runs weakly, a failed capacitor is often the culprit. This 47/56 MFD dual-capacitor replacement restores proper motor operation and cooling performance.

  • Dual capacitor design: 47 MFD and 56 MFD ratings for reliable AC startup
  • 250V rated for standard RV air conditioning systems
  • Direct replacement for original Dometic equipment
  • Improves compressor motor starting torque and efficiency
  • Prevents AC system strain and extends compressor life
  • OEM quality construction for dependable performance
Specification Value
Part Number 3100236.235
Capacitance Rating 47/56 MFD (dual)
Voltage Rating 250V
Application Dometic RV Air Conditioning Systems
Type Start Capacitor

Frequently Asked Questions

How do I know if my RV AC capacitor has failed?
Common signs include: the AC compressor won't start or takes multiple attempts to start, the unit runs but produces weak cooling, you hear a humming sound without the compressor engaging, or the system shuts down after running briefly. A failed capacitor is one of the most common AC failures in RVs.

Can I install this capacitor myself?
While capacitor replacement is relatively straightforward, it requires working with high-voltage components. Always disconnect power before servicing, and consider having a qualified RV technician perform the installation if you're not experienced with electrical systems. Improper installation can be dangerous.

Will this part fit my specific RV air conditioner model?
This is a genuine Dometic OEM part designed for Dometic AC systems using this capacitor specification. To confirm compatibility with your exact model, verify your current capacitor's part number matches 3100236.235, or contact our expert support team with your RV make, model, and year.

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 Dometic equipment backed by expert customer support to ensure you get the exact component your RV needs.

100% Authentic OEM Parts

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.

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