The Dometic AC Overload Reset Switch (Part# 290330924) is a critical safety component that protects your RV air conditioner from electrical overload damage. This thermal overload protector automatically trips when the compressor draws excessive current, preventing motor burnout and costly repairs. If your Dometic rooftop AC unit won't start or cycles on and off unexpectedly, a failed overload switch is often the culprit.
Key Features
- Thermal Overload Protection: Automatically trips to protect compressor from electrical overload and overheating
- Manual Reset Design: Push-button reset allows you to restore operation after the unit cools down
- Direct OEM Replacement: Exact fit for Dometic Brisk Air and Penguin series air conditioners
- Critical Safety Component: Prevents compressor motor damage that could cost hundreds in repairs
- Easy Diagnosis: If your AC won't start, testing this switch is a quick first troubleshooting step
- Durable Construction: Built to withstand the heat and vibration of RV rooftop installations
Technical Specifications
| Part Number | 290330924 |
| Component Type | Thermal Overload Reset Switch |
| Reset Type | Manual Push-Button |
| Application | RV Air Conditioner Compressor Protection |
| Compatible Series | Dometic Brisk Air, Penguin Series |
Frequently Asked Questions
A: Common symptoms include the AC compressor not starting, the unit running briefly then shutting off, or the AC blowing warm air. You can test the switch with a multimeter for continuity when it's cool. If there's no continuity, the switch needs replacement.
A: The overload switch is typically mounted directly on the compressor body or nearby in the electrical compartment. You'll need to remove the AC shroud and access the compressor area. Always disconnect power before servicing.
A: If the switch has tripped due to temporary overload, you can press the reset button once the unit cools down. However, if it trips repeatedly or won't reset, the switch has likely failed internally and needs replacement.
A: Many RV owners with basic electrical knowledge can replace this switch themselves. However, you'll be working with 120V AC power and refrigerant lines nearby, so if you're not comfortable with electrical work, consult a qualified RV technician.
Why Choose Elkhart RV Parts?
We specialize in hard-to-find Dometic RV air conditioning parts like this overload reset switch. Located in Elkhart, Indiana — the RV capital of the world — we understand the urgency when your AC goes down. We stock genuine OEM replacement parts and ship fast so you can get back to comfortable camping. Our team knows Dometic systems inside and out and can help you identify the right part for your specific model. When you need it done right the first time, trust the Dometic parts experts at Elkhart RV Parts.
| Brand | Dometic |
|---|---|
| Product type | Overload Reset Switch |
| Part number | 290330924 |
| Compatibility | Dometic Blizzard and similar roof AC models |
| Function | Automatic overload protection and reset |
| Features | Automatic trip on electrical overload or overheatingAutomatic reset capabilityNo manual intervention requiredEasy installation |
| Part classification | OEM Service Part |
| Weight | 0.30 lbs |
| Condition | New |
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.