The Dometic 1/2 Ton TXV (Thermostatic Expansion Valve) is a precision-engineered refrigeration component that regulates refrigerant flow in RV air conditioning and refrigeration systems. This genuine OEM expansion valve ensures optimal cooling performance by controlling the amount of refrigerant entering the evaporator coil based on temperature and pressure conditions. RV owners experiencing inconsistent cooling, frost buildup on evaporator coils, or complete AC system failure often need to replace this critical valve.
Key Features
- Precision Refrigerant Control: Thermostatic operation automatically adjusts refrigerant flow based on evaporator temperature for consistent cooling performance
- 1/2 Ton Capacity Rating: Designed specifically for half-ton RV air conditioning and refrigeration systems
- Genuine Dometic OEM Part: Factory-engineered component ensures perfect fit and reliable operation in Dometic cooling systems
- Durable Construction: Built with corrosion-resistant materials to withstand RV vibration and temperature extremes
- Direct Replacement: Exact fit for original equipment - no modifications or adapters required
- Critical System Component: Prevents compressor damage by maintaining proper refrigerant superheat levels
Technical Specifications
| Part Number | 9610003443 |
| Capacity Rating | 1/2 Ton |
| Component Type | Thermostatic Expansion Valve (TXV) |
| Application | RV Air Conditioning & Refrigeration Systems |
| Manufacturer | Dometic |
Frequently Asked Questions
Q: What are the symptoms of a failing TXV expansion valve?
A: Common symptoms include inconsistent cooling, AC system freezing up, frost or ice buildup on evaporator coils, reduced airflow, warm air from vents despite compressor running, or complete system failure. You may also notice unusual hissing sounds or higher-than-normal compressor cycling.
Q: Can I replace the TXV valve myself or do I need a certified technician?
A: TXV replacement requires recovering refrigerant, evacuating the system, installing the new valve, and properly recharging with the correct refrigerant type and amount. This work requires EPA 608 certification and specialized equipment. We strongly recommend having a certified HVAC or RV technician perform this repair to ensure proper operation and avoid system damage.
Q: How do I know if this is the correct expansion valve for my RV AC system?
A: Verify your existing valve's part number (usually stamped on the valve body) matches 9610003443. This valve is designed for 1/2 ton Dometic systems. If you're unsure, contact our parts specialists with your RV make, model, year, and AC unit serial number for confirmation before ordering.
Q: What causes TXV expansion valves to fail in RV applications?
A: Common causes include contamination in the refrigeration system (moisture, debris, or acid), loss of sensing bulb charge, mechanical wear from road vibration, improper refrigerant charge levels, and age-related deterioration of internal components. Regular AC system maintenance and keeping the system clean can extend valve life.
Why Choose Elkhart RV Parts?
At ElkhartRVParts.com, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running reliably. Located in Elkhart, Indiana - the RV Capital of the World - we understand the importance of getting the right part quickly. We stock genuine OEM Dometic components and provide expert technical support to help you identify exactly what you need. Our team knows RV refrigeration systems inside and out, and we're committed to fast shipping so you can get back on the road with confidence. When you need critical AC and refrigeration components like expansion valves, trust the specialists who live and breathe RV parts every day.
| Brand | Dometic |
|---|---|
| Product type | Thermostatic Expansion Valve (TXV) |
| Part number | 9610003443 |
| Connection size | 1/2T |
| Application | AC/Refrigeration |
| System type | RV Air Conditioning and Refrigeration |
| Compatible models | Dometic Brisk IIDometic Penguin IIDometic Rooftop AC Systems |
| Part category | OEM Replacement |
| Function | Regulates refrigerant flow |
| Purpose | Maintains optimal cooling performance |
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