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Midea Main Control Board - 17122000048168
Vendor:MideaRegular price $355.74Sale price $355.74 Regular priceUnit price per -
Midea Main Control Board - 17122000051933
Vendor:MideaRegular price $289.95Sale price $289.95 Regular priceUnit price per -
Midea Main Control Board - 17122000051935
Vendor:MideaRegular price $829.70Sale price $829.70 Regular priceUnit price per
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Welcome to the South Mini Splits collection for LG Main Boards. As the "brain" of your HVAC system, these boards manage the primary logic, timing, and safety protocols required for peak performance. We provide high-quality, authentic replacement components and sophisticated control subassemblies to keep your inverter-driven systems running efficiently.
Our extensive inventory ensures compatibility across various LG Main Boards platforms. Whether you need the Duct MCB V2 (17123000011299) for indoor ducted units or a specialized Electronic Control Box Subassembly (17222000037708) for advanced DC inverter technology, we have the precision-engineered parts necessary for routine repairs or complex system overhauls.
💡 Why Choose South Mini Splits for Your LG Main Boards?
- ✅Wholesale Pricing: Competitive rates on critical electronic components and subassemblies.
- ✅USA-Based Support: Expert technical assistance to help you identify the exact board for your specific model number, such as the Main Control Board Subassembly (17122000018658).
- ✅Free Shipping Over $300: Get your vital replacement parts delivered fast to minimize system downtime.
Understanding LG Main Boards Control Ecosystems
Modern inverter systems utilize a complex ecosystem of boards working in tandem:
- Indoor Main Boards: We carry a wide range of indoor logic boards, from the Main Control Board Subassembly (17122000045295) for wall-mount units to the Main Control Board Subassembly (17123000004052) for high-capacity systems.
- Outdoor Main Boards: Our inventory includes crucial outdoor components like the Outdoor Main Control Board Subassembly (17122000050360) and the Data Transfer Board (17122000055387).
- Data Transfer & Interface Modules: Facilitate high-speed communication with modules like the Data Transfer Board (17122000055387) or the Data Transfer Module Control (17122000062118).
Technical Facts & Performance Advantages
- Multi-Zone Capability: We stock theMain Control Board Sub-Multi Only (17123000010339) and the Module Control Board Multi Only (17122000059682) to manage multiple indoor heads from a single outdoor condenser.
- Voltage Specificity: We offer boards tested for varied power requirements, including 230V and 115V configurations.
- Inverter Precision: Parts like the Inverter Module Subassembly (17122000055348) Anchor Text convert power to the variable frequency needed for DC inverter compressors.
Mini Split BTU Sizing & Application Guide
Use our quick reference chart to match your room size with the ideal system capacity.
| Capacity | Sq. Footage | Application |
|---|---|---|
| 6,000 BTU | 150–250 | Small bedrooms & offices |
| 9,000 BTU | 250–450 | Standard bedrooms |
| 12,000 BTU | 450–600 | Kitchens & studios |
| 18,000 BTU | 600–1,000 | Living rooms & garages |
| 24,000 BTU | 1,000–1,200 | Open floor plans |
| 36,000 BTU | 1,500–1,700 | Commercial & fitness |
| 48,000 BTU | 1,900–2,100 | Large warehouses |
| 60,000 BTU | 2,400–2,800+ | Commercial estates |
When to "Size Up"
If your ceilings are 10 feet or higher, you are cooling a larger volume of air. We recommend increasing your BTU choice by 20%.
For older homes or buildings with single-pane windows, opt for the next size up to ensure the unit can maintain the set temperature.
Appliances generate significant heat. If the unit is for a kitchen, add 4,000 BTUs to your square footage calculation.
Rooms with large south-facing windows or "sunrooms" act like greenhouses. Increase your BTU capacity by 10-15%
If the area regularly hosts more than two people (like a conference room or classroom), add 600 BTUs per additional person..
Frequently Asked Questions
A: If your outdoor condenser connects to only one indoor unit, use a board like the Main Control Board Sub-Single Only (17123000008577). Multi-zone systems require boards designed to manage complex communication between zones.
A: No. Control boards are programmed with specific firmware for different BTU capacities. A 12k BTU unit board like the Main Control Board (30138000318) has different logic than a 24k BTU unit board like the Main Control Board (30138000192).
A: "Subassemblies" usually consist of just the board, while "Assemblies" or "Electric Boxes", like the Electronic Control Box Assembly (17222000033256), often include the protective housing.
A: It depends on the part number. Some items are "Subassemblies" (just the board), while others, like the Electric Box Assy (10000100013), include the protective metal or plastic housing.
A: A V2, such as the Duct MCB V2 (17123000011303), is typically an updated version. Always check communication protocols or contact our support to verify backwards compatibility.