Cooler Master MLW-D24M-A18PC-R2
CoolerMaster MasterLiquid ML240L RGB V2 CPU Liquid Cooler Instruction Manual
Model: MLW-D24M-A18PC-R2
Brand: Cooler Master
1. Introduction
The Cooler Master MasterLiquid ML240L RGB V2 is a high-performance All-in-One (AIO) CPU liquid cooler designed to provide efficient and reliable cooling for your system. This refreshed model features an enhanced 3rd Generation Dual Chamber Pump for improved cooling efficiency and an enlarged radiator surface area for optimized heat dissipation. It comes equipped with the latest SickleFlow 120 RGB fans, engineered for quiet operation without compromising on airflow and pressure. This manual provides essential information for setup, operation, and maintenance of your MasterLiquid ML240L RGB V2.
2. Key Features
- 3rd Generation Dual Chamber Pump: Enhanced design for overall cooling efficiency and performance.
- New SickleFlow Fans: Refreshed exterior design with improved lighting and fan blades for quiet airflow performance.
- Customizable RGB Lighting: Signature cooling performance with an RGB design for fully customizable lighting effects.
- Industrial Grade Seal: High industrial-grade EPDM material strengthens the seal for improved longevity and anti-leaking protection.
- Wide Compatibility: Supports a broad range of AMD (AM4/AM3+/AM3/AM2+/AM2/FM2+/FM2/FM1) and Intel (LGA1700*/1200/1151/1150/1155/1156/1366/2066/2011-v3/2011) sockets.
- Enlarged Radiator: Increased surface area for superior heat dissipation, especially under heavy workloads.
3. Setup and Installation
Proper installation is crucial for optimal performance. Please refer to the detailed installation guide provided with your product for step-by-step instructions specific to your CPU socket type. Ensure all components are securely mounted and connections are properly made before powering on your system.
3.1. Socket Compatibility
The MasterLiquid ML240L RGB V2 supports a wide range of CPU sockets, ensuring compatibility with most modern systems. Tool-free mounting brackets enable effortless and rapid installation.

Image: Socket compatibility for AMD and Intel platforms.
3.2. Pump and Radiator Installation
The 3rd Generation Dual Chamber Pump is meticulously crafted for superior performance. The 240mm radiator is designed to be compatible with chassis capable of accommodating its length, allowing convenient mounting on the top, side, or front of the chassis.

Image: Internal structure of the 3rd Gen Dual Chamber Pump.

Image: Radiator and pump dimensions for chassis compatibility.
3.3. Industrial Grade Seal
Crafted from premium industrial-grade EPDM material, this component offers enhanced seal strength, extended longevity, and effective anti-leak protection.

Image: Components of the pump head with emphasis on the EPDM seal.
4. Operating Instructions
Once installed, the MasterLiquid ML240L RGB V2 operates automatically to maintain optimal CPU temperatures. The SickleFlow fans and pump adjust their speeds based on system load and temperature.
4.1. RGB Lighting Control
The integrated RGB lighting system allows for comprehensive customization. You can control the lighting effects via the included RGB controller or through compatible motherboard software if your motherboard supports RGB synchronization.

Image: RGB lighting capabilities and motherboard sync compatibility.

Image: Luminescent RGB light on SickleFlow fan.

Image: Included RGB LED controller for manual adjustments.
4.2. Fan Operation
The SickleFlow 120 PWM ARGB fans feature a dynamically controlled PWM 4-pin header, allowing for adjustable fan speeds between 650 RPM to 1,800 RPM. This minimizes noise during light loads and maximizes airflow when cooling demands are high.

Image: Dynamic PWM fan speed control.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your liquid cooler. Keep your system clean and free of dust buildup.
- Dust Removal: Periodically clean the radiator fins and fan blades using compressed air to remove dust and debris. Ensure the fans are not spinning during cleaning.
- Hose Inspection: Check the hoses for any signs of kinks, damage, or leaks. While the industrial-grade seal provides anti-leak protection, regular visual inspection is recommended.
- Pump Check: Listen for any unusual noises from the pump. A consistent, low hum is normal, but grinding or gurgling sounds may indicate an issue.
6. Troubleshooting
If you encounter issues with your MasterLiquid ML240L RGB V2, try the following troubleshooting steps:
- High CPU Temperatures:
- Ensure the pump is running and properly seated on the CPU.
- Verify that the fans are spinning and correctly oriented for airflow (intake or exhaust as desired).
- Check for dust buildup on the radiator fins and clean if necessary.
- Confirm that thermal paste was applied correctly and evenly.
- Fans Not Spinning or RGB Not Working:
- Check all power and RGB connections to the motherboard or controller.
- Ensure the RGB controller is powered and functioning.
- If using motherboard software, verify it is up-to-date and correctly configured.
- Unusual Noises:
- A slight gurgling sound during initial startup is normal as air bubbles settle. If it persists, gently tilt your PC case to help trapped air move to the radiator.
- Excessive fan noise may indicate dust buildup or an issue with the fan bearings. Clean the fans or consider replacement if noise persists.
If issues persist after attempting these steps, please contact Cooler Master customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | MLW-D24M-A18PC-R2 |
| Product Dimensions | 0.43"L x 0.19"W x 0.04"H (Radiator: 277 x 119.6 x 27.2 mm) |
| Weight | 2.95 Pounds |
| Cooling Method | Water |
| Fan Speed | 650 - 1800 RPM ± 10% (PWM controlled) |
| Noise Level | 15 dB (minimum) |
| Power Connector Type | 3-Pin (Pump), 4-Pin PWM (Fans) |
| Voltage | 12 Volts |
| Wattage | 260 watts |
| Material | EPDM (tubing) |
| Compatible Devices | Desktop PCs |
| Manufacturer | Coolermaster |
| First Available Date | March 31, 2020 |
8. Product Images

Image: Overall view of the Cooler Master MasterLiquid ML240L RGB V2.

Image: Detailed view of the SickleFlow 120mm fan.

Image: Illustration of the radiator's larger cooling area.

Image: Product illuminated with blue and green RGB lighting.

Image: Product illuminated with purple RGB lighting.

Image: Product illuminated with pink RGB lighting.
9. Product Videos
No official product videos from the seller are available for this item at this time.
10. Warranty and Support
For warranty information and technical support, please refer to the official Cooler Master website or contact their customer service directly. Keep your proof of purchase for warranty claims.
Cooler Master Official Website: www.coolermaster.com