The Dometic thermostat control unit is the command center for your RV's air conditioning system. This OEM replacement maintains precise temperature control and ensures your 3100 or 3300 series Dometic AC operates efficiently. If your AC isn't responding to temperature adjustments or the display is unresponsive, this control unit is likely your solution.
Key Features
- OEM Dometic genuine replacement part for guaranteed compatibility
- Fits Dometic 3100 and 3300 series air conditioning units
- Direct plug-and-play installation with existing wiring harness
- Maintains accurate temperature calibration and cycling
- Controls cooling mode, fan speed, and system operation
- Durable construction designed for RV environments
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4450037358 |
| Manufacturer | Dometic |
| Compatible Series | 3100, 3300 |
| Type | AC Thermostat Control Unit |
| Installation | Direct replacement, no modifications required |
Frequently Asked Questions
- How do I know if my thermostat control unit needs replacement?
- Signs include the AC not cooling to set temperature, unresponsive buttons or display, system cycling on and off repeatedly, or complete loss of AC function while the compressor runs. If you've verified the compressor and fan are working, the control unit is likely the issue.
- Is this a direct replacement for my 3100/3300 series unit?
- Yes. This OEM Dometic part is engineered as a direct replacement. Simply disconnect the old unit and reconnect the wiring harness to the new control unit. No rewiring or modifications are necessary.
- Will this work with aftermarket AC units or only Dometic?
- This control unit is specifically designed for Dometic 3100 and 3300 series air conditioners. It will not be compatible with other manufacturers' units. Always verify your AC model before ordering.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts for RV owners who need exact OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine Dometic parts and provide expert support to help you identify the right replacement for your specific model. When you need it right, we have it in stock.
| Brand | Dometic |
|---|---|
| Product type | RV AC Thermostat Control Unit |
| Part number | 4450037358 |
| Compatible series | 3100/3300 Series |
| Compatible models | 310431053106330433053306 |
| Oem | true |
| New arrival | true |
| Category | Service Parts |
| Features | Temperature settings managementFan speed controlClimate control operation |
| Installation type | Wiring connections required |
| Product 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.