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Genuine OEM Replacement Parts

Genuine MRCOOL Cross Flow Fan (94X792) – Replacement Fan for DIY & Advantage Series 9K & 12K Wall-Mounted Air Handlers

Brand MRCOOL®
MRCOOL® PART NUMBER 12100102000044
Regular price $147.29
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✓ Confirmed Fitment

Fits These MRCOOL® Models

  • DIY-12-HP-WMAH-115B
  • DIY-12-HP-WMAH-115AE

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
1 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.

Keep your MRCOOL ductless mini-split operating at peak performance with the Genuine MRCOOL Cross Flow Fan (94X792)—the official replacement fan for MRCOOL DIY Series and Advantage Series 9K & 12K wall-mounted air handlers. Designed for precise compatibility and long-term reliability, this high-quality fan restores proper airflow, efficiency, and comfort to your system.

Whether you're replacing a worn, noisy, or damaged fan, the 94X792 ensures your air handler performs like new, delivering consistent temperature control and whisper-quiet operation.


Key Features

Perfect OEM Compatibility

Tailored for MRCOOL DIY Series and Advantage Series 9K and 12K wall-mounted air handler models, offering a seamless fit and proper function.

Restores Strong, Even Airflow

The cross flow design delivers smooth, balanced air movement for improved heating and cooling output.

Quiet & Efficient Performance

Engineered to reduce noise and vibrations, enhancing indoor comfort.

Durable Construction

Built with premium materials for long-lasting, dependable operation in demanding HVAC environments.

Easy Installation

Made for quick, straightforward replacement to minimize downtime and restore system efficiency.


🔧 Specifications

  • Part Number: 94X792

  • Compatible Series:

    • MRCOOL DIY Series (9K & 12K)

    • MRCOOL Advantage Series (9K & 12K)

  • Additional Fitment: Compatible with many other mini-split brands/models

  • Part Type: Cross Flow Fan

  • Function: Provides balanced, efficient, and quiet airflow

  • Construction: High-quality, durable materials


🛠 Installation Instructions

  1. Power Off the Unit – Disconnect power before servicing.

  2. Remove the Front Cover – Access internal components.

  3. Remove the Old Fan – Unfasten wiring and screws; slide fan out.

  4. Install the New Fan – Position, secure, and reconnect wiring.

  5. Reassemble & Test – Restore power and confirm smooth operation.

Disclaimer: This cross flow fan fits many different mini-split models and brands beyond MRCOOL. If you are unsure whether this part is compatible with your specific unit, please contact us before placing your order. We’re happy to help ensure you receive the correct replacement part.

Confirmed Fitment

Known Compatible Models / Series
  • DIY-12-HP-WMAH-115B
  • DIY-12-HP-WMAH-115AE
Compatibility Notice This part may fit other MRCOOL® models and generations. Compatibility outside the listed models is not guaranteed without verification.

Part Details

Part CategoryIndoor Air Handler Parts
Part TypeCross Flow Fan
BrandMRCOOL®
MRCOOL® Part Number12100102000044
Also Known As
  • Cross Flow Fan
  • Squirrel Cage Fan
  • Indoor Blower Wheel
  • Barrel Fan
  • Indoor Fan Drum
  • Indoor Air Handler Fan
  • Air Distribution Fan

Common Symptoms

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

  • Weak airflow
  • Reduced cooling performance
  • Reduced heating performance
  • Grinding or rubbing noises
  • Fan vibration
  • Uneven airflow
  • Indoor fan not rotating properly
  • Excessive operating noise

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.