The Dometic 3313107.077 AC Control Board LCD Relay is a critical replacement component for Dometic RV air conditioner control systems. This genuine OEM relay board manages cooling, fan, and heat pump functions through an LCD interface, ensuring precise climate control in your RV. If your Dometic AC control panel is unresponsive, displays error codes, or fails to activate heating or cooling modes, this relay board is often the solution.
Key Features
- Multi-Function Control: Manages cooling, fan operation, and heat pump functions from a single relay board
- LCD Interface Compatible: Designed specifically for Dometic AC systems with LCD control panels
- Genuine OEM Replacement: Factory-spec part ensuring perfect fit and reliable performance
- Direct Relay Control: Handles electrical switching for compressor, fan motor, and heat pump components
- Diagnostic Capability: Works with system diagnostics to identify and resolve AC performance issues
Technical Specifications
| Part Number | 3313107.077 |
| Component Type | AC Control Board LCD Relay |
| Functions Controlled | Cooling, Fan, Heat Pump |
| Interface Type | LCD Display Compatible |
| OEM Manufacturer | Dometic |
Frequently Asked Questions
Q: How do I know if my AC control board relay has failed?
A: Common symptoms include an unresponsive LCD control panel, AC unit not responding to temperature adjustments, fan running but no cooling, heat pump mode not activating, or error codes displaying on the control panel. If your thermostat shows power but the AC won't engage, the relay board is a likely culprit.
Q: Is this relay board compatible with both ducted and non-ducted Dometic AC systems?
A: This relay board is designed for specific Dometic AC models with LCD control interfaces. Compatibility depends on your exact AC model number and control system configuration. Check your existing relay board part number or contact our parts specialists with your AC model number to confirm fitment.
Q: Can I install this relay board myself or do I need a technician?
A: Installation requires working with 120V AC electrical systems and removing the AC unit's control box cover. If you're comfortable with basic electrical work and can safely disconnect power, this is a straightforward replacement. However, if you're unsure about working with electrical components, we recommend having a certified RV technician perform the installation.
Q: Will replacing this relay board fix all AC control issues?
A: The relay board controls the switching functions for cooling, heating, and fan operation. If your issue is related to the control panel not activating these functions, this board will likely resolve it. However, if you have compressor failure, refrigerant leaks, or fan motor problems, those components would need separate attention.
Why Choose Elkhart RV Parts?
ElkhartRVParts.com specializes in hard-to-find Dometic RV air conditioning components like the 3313107.077 relay board. Located in Elkhart, Indiana — the RV capital of the world — we maintain deep inventory of genuine OEM Dometic parts that other suppliers don't stock. Our parts specialists understand Dometic AC systems and can help you identify the exact component you need. We offer fast shipping across the United States, expert technical support, and the confidence that comes with installing factory-genuine parts in your RV's climate control system.
| Brand | Dometic |
|---|---|
| Part number | 3313107.077 |
| Product type | AC Control Board |
| Display type | LCD Relay |
| Functions | CoolingFanHeat Pump |
| Temperature display | CelsiusFahrenheit |
| Part category | OEM Replacement |
| Compatible system types | Rooftop AC unitsDucted AC units |
| Board dimensions | 9" x 7" x 3" |
| Condition | New |
| Note | Verify specific model compatibility before ordering |
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.