1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your MITSUBISHI ELECTRIC EX-25SH9 Standard Ventilation Fan. Please read this manual thoroughly before using the product and keep it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Do not install this unit inside kitchen hoods.
- Do not use this unit in locations with strong winds.
- This unit is not suitable for use as a kitchen fan or in oily environments.
- When installing with a fire damper weather cover, ensure the wall thickness is at least 90mm. For steel plate walls, ensure a minimum thickness of 115mm.
- Ensure the power supply is disconnected before any installation or maintenance work.
3. Package Contents
Verify that all items are present in the package:
- MITSUBISHI ELECTRIC EX-25SH9 Ventilation Fan Unit (1)
- Instruction Manual (1)
4. Specifications
| Manufacturer | MITSUBISHI ELECTRIC |
| Model Number | EX-25SH9 |
| Product Type | Standard Ventilation Fan |
| Blade Diameter | 25 cm |
| Shutter Type | Pressure Shutter |
| Control Type | Pull Cordless (Wall Switch Operated) |
| Mounting Type | Wall Mount |
| Material | Alloy Steel (Fan body), Resin (Extra Winglet Fan) |
| Power Source | Single Phase |
| Product Dimensions (D x W x H) | 39.6 cm x 13.5 cm x 39.6 cm |
| Product Weight | 3.36 kg |
| Special Features | Thin body design, One-touch detachable blade, Antibacterial blade operating part, Stain-resistant orifice part |
Note: The product dimensions are approximately 39.6 cm (depth from wall to front) x 13.5 cm (width of the main body) x 39.6 cm (height). The overall package dimensions are 43.4 x 43.29 x 16.4 cm.

This image shows the MITSUBISHI ELECTRIC EX-25SH9 ventilation fan from a side-front angle, highlighting its square design and the four-blade fan. Key dimensions are indicated: 39.6 cm for both width and height, and 13.5 cm for depth. The fan is white with black internal components.
5. Installation (Setup)
This ventilation fan is designed for wall-mount installation. For detailed step-by-step instructions, refer to the included Instruction Manual. Key features for installation include:
- Thin Body Design: Facilitates installation in various wall depths.
- One-Touch Detachable Blade: Simplifies the process of attaching and detaching the fan blade during installation and maintenance.
- Ensure proper electrical wiring by a qualified professional. The unit comes with a power cord and plug.
- Adhere to the wall thickness requirements if using a fire damper weather cover, as specified in the Safety Information section.
6. Operation
The EX-25SH9 fan features a pressure shutter mechanism and is pull cordless, meaning it is typically controlled via a wall switch connected to its power supply.
- Power On/Off: Operate the fan using the dedicated wall switch connected to its power supply.
- Pressure Shutter: The shutter automatically opens when the fan is operating and closes when the fan is turned off, preventing drafts and insect entry when not in use.
7. Maintenance
Regular cleaning ensures optimal performance and longevity of your ventilation fan.
- Disconnect Power: Always turn off the power supply at the circuit breaker before performing any cleaning or maintenance.
- Blade Cleaning: The fan features a 'one-touch detachable' blade for easy removal and cleaning. Gently press the release mechanism to detach the blade. Clean with a soft cloth and mild detergent. Rinse thoroughly and ensure it is completely dry before reattaching.
- Orifice Cleaning: The orifice part has stain-resistant processing. Wipe clean with a damp cloth.
- Antibacterial Properties: The blade operating part has antibacterial specifications, contributing to a cleaner environment.
- Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the fan's surfaces or components.
8. Troubleshooting
If you encounter issues with your ventilation fan, consider the following basic troubleshooting steps:
- Fan Not Operating:
- Check if the power supply is connected and the wall switch is in the 'ON' position.
- Verify that the circuit breaker for the fan's power supply has not tripped.
- Unusual Noise:
- Ensure the fan blade is securely attached and free from obstructions.
- Check for any loose parts or debris inside the fan housing.
- Shutter Not Opening/Closing Properly:
- Inspect the shutter for any physical obstructions or damage.
- Ensure the fan is receiving adequate power to operate the pressure shutter mechanism.
If the problem persists after performing these checks, please consult a qualified technician or contact MITSUBISHI ELECTRIC customer support.





