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Genuine OEM Replacement Parts

Electronic Control Box Subassembly Control Board for (DIY-18-HP-C-230C25 ; CENTRAL-18-HP-C-230-25) Condenser

Brand Control Board
MRCOOL® PART NUMBER 17222000037055
Regular price $272.95
Sale price $272.95 Regular price $310.05
You Save: $37.10
SALE Sold out
✓ Confirmed Fitment

Fits These MRCOOL® Models

  • DIY-18-HP-C-230C25
  • CENTRAL-18-HP-C-230-25

This part may fit other MRCOOL® models or generations. Always verify your model number before ordering.

!
Compatibility matters. Replacement parts are model-specific. Images may be stock photos, and small visual differences may exist between production batches. Verify your model number, serial number, and existing part before placing an order.
In Stock & Ready to Ship
4 available through our authorized parts inventory network

Not Sure This Is The Correct Part?

Send us your indoor unit model number, serial number, and photos of the existing part before ordering. This helps us verify compatibility and reduce the chance of ordering the wrong replacement part.

Genuine MRCOOL Replacement Control Board – Electronic Control Box Subassembly for DIY-18-HP-C-230C25 & CENTRAL-18-HP-C-230-25 Condensers

Maintain Peak Performance with an Authentic MRCOOL Control Board

Ensure the long-term performance and efficiency of your MRCOOL HVAC system with this Genuine MRCOOL Electronic Control Box Subassembly Control Board. Specifically engineered for the DIY-18-HP-C-230C25 and CENTRAL-18-HP-C-230-25 condenser models, this OEM replacement part is critical for maintaining optimal system operation and seamless communication between components.

Whether you're replacing a damaged board or conducting preventive maintenance, this control board ensures your condenser continues operating reliably and efficiently—exactly as MRCOOL intended.


🔧 Product Features & Benefits:

Exact Fit Compatibility
Designed specifically for MRCOOL condenser models DIY-18-HP-C-230C25 and CENTRAL-18-HP-C-230-25, ensuring flawless integration and operation.

Built to Last
Manufactured with high-quality, durable materials capable of withstanding harsh environments, temperature changes, and consistent use.

Restores System Efficiency
A functioning control board is essential for accurate communication between components, maximizing energy efficiency and reliable performance.

DIY & Pro-Friendly Installation
Includes clear instructions, making this replacement control board accessible to both experienced DIYers and licensed HVAC professionals.

Genuine MRCOOL Part
As an official OEM MRCOOL replacement part, you can trust this board for full compatibility, factory-level reliability, and warranty support.


📦 Product Details:

  • Part Type: Electronic Control Box Subassembly / Control Board

  • MRCOOL Model Compatibility:

    • DIY-18-HP-C-230C25

    • CENTRAL-18-HP-C-230-25

  • Installation: DIY or professional installation recommended

  • Condition: This is a brand new OEM MRCOOL control board sub-assembly, removed from new condensers that experienced cosmetic damage to the outer cabinet during shipping or handling. These parts were carefully pulled from undamaged internal units and are guaranteed to be fully functional.

  • Packaging: Ships securely with installation instructions


🏠 Why Buy from MRCOOL DIY Direct?

As the USA’s most trusted independent MRCOOL dealer, MRCOOL DIY Direct offers authentic replacement parts, expert support, and fast nationwide shipping. We’re a family-owned business based in Joplin, Missouri, proudly supporting homeowners, contractors, and HVAC professionals across the country.


🔧 Keep Your MRCOOL System Running Strong

Don’t let a faulty control board disrupt your comfort. Replace it with this Genuine MRCOOL Control Box Subassembly and restore your system’s performance the right way—backed by the quality and reliability only MRCOOL can offer.

Confirmed Fitment

Known Compatible Models / Series
  • DIY-18-HP-C-230C25
  • CENTRAL-18-HP-C-230-25
Compatibility Notice This part may fit other MRCOOL® models and generations. Compatibility outside the listed models is not guaranteed without verification.

Part Details

Part CategoryOutdoor Unit Electronics
Part TypeOutdoor Control Board
BrandControl Board
MRCOOL® Part Number17222000037055
Also Known As
  • Control Board Sub-Assembly
  • Outdoor Control Board
  • Outdoor PCB
  • Condenser Control Board
  • Main Control Board
  • Outdoor Circuit Board
  • Electronic Control Module

Common Symptoms

This replacement part may be needed if your system is experiencing any of the following issues:

  • Outdoor unit not starting
  • Communication faults
  • Error codes
  • Random system shutdowns
  • Compressor not operating
  • Outdoor fan not operating
  • Power issues
  • Intermittent operation

Installation Notes

This replacement part should be installed by a qualified technician or a capable installer familiar with mini split service procedures. Always disconnect power before servicing HVAC equipment.

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FAQMRCOOL DIY Direct

Frequently Asked Questions About HVAC & Mini Split Replacement Parts

Quick answers to common questions about sizing, installation, and choosing the right MRCOOL DIY system.

How Do I Know If This Replacement Part Fits My HVAC System?

The best way to verify compatibility is by checking the model number and serial number of your HVAC system before ordering. Many replacement parts can fit multiple models, generations, or product series, while others are designed for specific units only. Model numbers are typically found on the equipment data plate located on the indoor air handler, outdoor condenser, or inside the service panel. If you are unsure, contact our team with your model number and photos of the existing part for compatibility verification.

Where Can I Find My Mini Split Model Number?

Most mini split model numbers can be found on the manufacturer data label attached to the indoor air handler or outdoor condenser. The label typically includes the model number, serial number, electrical specifications, refrigerant type, and manufacturing information. Providing this information helps ensure you receive the correct replacement part for your system.

Are OEM HVAC Replacement Parts Better Than Aftermarket Parts?

OEM (Original Equipment Manufacturer) replacement parts are designed to meet the exact specifications of the original equipment. Using genuine OEM parts helps ensure proper fitment, reliable operation, and long-term system performance. Aftermarket parts may not always meet the same design standards, which can result in compatibility or performance issues.

Can HVAC Replacement Parts Fit Multiple Models or Generations?

Yes. Many HVAC replacement parts are used across multiple models, capacities, and generations of equipment. However, compatibility can vary based on manufacturing revisions, electrical requirements, control board versions, and system design changes. Always verify compatibility before ordering any replacement component.

What Are the Most Commonly Replaced Mini Split Parts?

Some of the most commonly replaced mini split components include blower motors, cross flow fans, control boards, temperature sensors, remote controls, fan bearings, drain pumps, louvers, and communication modules. Replacing worn or failed components can help restore proper heating, cooling, airflow, and system efficiency.

Can I Replace HVAC Parts Myself?

Some replacement parts can be installed by experienced homeowners, while others should be installed by a qualified HVAC technician. Electrical components, refrigerant-related parts, and advanced control systems may require specialized tools, training, or safety procedures. Always follow manufacturer instructions and local codes when servicing HVAC equipment.

What Can Cause A Mini Split To Stop Heating Or Cooling Properly?

Poor heating or cooling performance can be caused by several issues, including failed blower motors, damaged fan assemblies, faulty sensors, defective control boards, airflow restrictions, dirty filters, refrigerant issues, or communication errors between system components. Proper troubleshooting is recommended before replacing any part.

How Can I Verify The Correct Replacement Part Before Ordering?

To verify compatibility, gather your equipment model number, serial number, and clear photos of the existing component. This information allows our team to compare your system with manufacturer specifications and help identify the correct replacement part for your equipment.

Can Replacement HVAC Parts Be Returned?

Return eligibility varies depending on the type of part and its condition. Electrical components, control boards, special-order items, and installed parts may be subject to specific return restrictions. Please review the current return policy before ordering and contact us with any questions regarding part eligibility.

How Long Do Mini Split Components Typically Last?

The lifespan of HVAC components depends on operating conditions, maintenance, installation quality, and environmental factors. Many motors, fans, sensors, and electronic components can provide years of reliable service when properly maintained. Regular cleaning, inspection, and preventive maintenance can help extend the life of your HVAC system and its replacement parts.