The Dometic thermistor wire assembly is the temperature sensor that monitors your RV air conditioning system's evaporator coil temperature. This OEM replacement part ensures your AC unit cycles properly and prevents ice buildup on the cooling coil. If your Dometic AC isn't cooling effectively or cycles on and off erratically, a faulty thermistor is often the culprit.
- OEM Dometic replacement thermistor for accurate temperature monitoring
- Prevents evaporator coil freeze-up and system damage
- Direct fit replacement—no modifications required
- Works with Dometic rooftop and under-bed AC units
- Durable wire assembly rated for RV operating conditions
- Part of Dometic's climate control system reliability
| Specification | Details |
|---|---|
| Part Number | 3312303.005 |
| Component Type | Thermistor Wire Assembly |
| Application | Dometic RV Air Conditioning Systems |
| Function | Evaporator Temperature Sensing |
| Condition | New OEM |
Frequently Asked Questions
Q: How do I know if my thermistor is bad?
A: Signs include AC not cooling, compressor cycling rapidly, ice forming on the evaporator coil, or the system shutting down unexpectedly. A multimeter can also test resistance values.
Q: Will this fit my Dometic AC unit?
A: This OEM part fits most Dometic rooftop and under-bed air conditioning systems. Verify your model number matches Dometic's compatibility charts, or contact our expert support team.
Q: Is this a genuine Dometic part?
A: Yes, this is an authentic OEM Dometic replacement part, not an aftermarket alternative. You get the exact quality and fit Dometic designed.
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, and our expert support team is ready to help you identify and install the right component for your RV.
| Brand | Dometic |
|---|---|
| Product type | Thermistor Wire Assembly |
| Function | AC Temperature Sensor |
| Part number | 3312303.005 |
| Oem | true |
| Compatibility | Dometic RV Air Conditioning SystemsDometic Roof AC UnitsDometic Portable AC UnitsBrisk Air SeriesCool-Top Series |
| Category | Service Parts |
| Installation | Direct-fit Replacement |
| Modifications required | false |
| Purpose | Temperature sensing for thermostat control and AC operation efficiency |
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.

