Introduction
This manual provides essential information for the safe and efficient operation of your Midea MDF18A1AST Built-in Dishwasher. Please read all instructions carefully before installation and use. Proper installation, operation, and maintenance are crucial for the longevity and performance of the appliance.
Safety Information
For your safety, and to reduce the risk of fire, electric shock, or injury, observe the following precautions:
- Ensure the dishwasher is properly grounded.
- Do not operate the dishwasher if it is damaged or malfunctioning.
- Keep children away from the dishwasher, especially when it is operating.
- Use only detergents and rinse aids specifically designed for automatic dishwashers.
- Do not store or use flammable materials near the dishwasher.
- Always disconnect power before performing any maintenance or repairs.
What's in the Box
The following items are included with your Midea MDF18A1AST Built-in Dishwasher:
- Built-in Dishwasher Unit
- User Manual
- Installation Manual
- Mounting Clamps
- Flat Head Wood Screws
- Screws
- Hose Clamp
- Adjustment Caps
- Kick Plate


Installation
For detailed installation instructions, please refer to the dedicated Installation Manual provided with your dishwasher. A digital version may also be available here.
Parts Needed (Not Provided)
- Power Supply Cord Kit
- Water Supply Line
- 90° Elbow (3/8in.MIP to 3/8in. Compression Thread)
- UL Listed Wire Nuts
- Strain Relief

Mounting Dimensions
The dishwasher dimensions are approximately 22.6"D x 17.6"W x 32.4"H. Ensure your cabinet opening accommodates these measurements for a proper fit. Adjustable legs allow for minor height adjustments.

Operating Instructions
Control Panel
The dishwasher features a digital control panel with an LED display for easy program selection and monitoring.

Washing Programs
Select the appropriate program based on the soil level of your dishes:
- Heavy: For heavily soiled dishes, pots, and pans.
- Normal: For regularly soiled dishes.
- ECO: Energy-efficient program for normal loads.
- Delicate: For fragile items like glassware.
- Quick: For lightly soiled dishes that need a fast wash.
- Rinse: For rinsing dishes that will be washed later.

Functions
Enhance your wash cycle with these additional functions:
- Heated Dry: Provides thorough drying performance, reducing the need for towel drying.
- Hi-Temp: Increases water temperature to 136°F (58°C) for enhanced cleaning and sanitization, suitable for heavily soiled items and baby bottles.
- Sanitize: Ensures dishes are sanitized for optimal hygiene.

Loading Dishes
Proper loading ensures optimal cleaning and drying results. Avoid overcrowding and ensure water spray can reach all surfaces.
- Place larger items in the lower rack.
- Place glasses, cups, and smaller bowls in the upper rack.
- Ensure items do not block the spray arms.
- Use the silverware basket for forks, spoons, and knives, handles down for forks and spoons, handles up for knives.

Detergent Use
Only use detergent specifically designed for automatic dishwashers. Regular liquid dish soap will cause excessive suds and can lead to dishwasher malfunction.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your dishwasher.
Cleaning the Filters
The dishwasher has a filter system that needs regular cleaning to prevent food particles from recirculating and affecting wash performance. Refer to the user manual for detailed instructions on how to remove and clean the filters.
Cleaning the Interior and Exterior
- Wipe the exterior with a soft, damp cloth.
- Clean the interior periodically with a dishwasher cleaner or a mixture of vinegar and baking soda to remove mineral deposits and odors.
- Ensure the spray arms are free from blockages.

Troubleshooting
Before contacting customer service, review the following common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Dishwasher does not start | Power cord not plugged in; door not closed properly; circuit breaker tripped. | Check power connection; ensure door latches; reset circuit breaker. |
| Dishes are not clean | Improper loading; clogged spray arms; insufficient detergent; clogged filters. | Reload dishes correctly; clean spray arm nozzles; use recommended detergent; clean filters. |
| Water not draining | Clogged drain hose; clogged filter; air gap blocked. | Check and clear drain hose; clean filter; clear air gap. |
| Excessive suds | Wrong type of detergent used. | Use only automatic dishwasher detergent. |
Specifications
Key technical specifications for the Midea MDF18A1AST Built-in Dishwasher:
| Feature | Specification |
|---|---|
| Model Number | MDF18A1AST |
| Dimensions (D x W x H) | 22.6" x 17.6" x 32.4" |
| Place Settings | 8 |
| Washing Programs | 6 (Heavy, Normal, ECO, Delicate, Quick, Rinse) |
| Functions | Heated Dry, Hi-Temp, Sanitize |
| Inner Material | Stainless Steel |
| Noise Level | 52 dB |
| Voltage | 120 Volts |
| Annual Energy Consumption | 234 Kilowatt Hours Per Year |
| Water Consumption | 15.5 Gallons per Hour |
| Special Feature | Digital Display |
Warranty and Support
For warranty information, please refer to the warranty card included with your product or visit the official Midea website. If you require technical assistance or have questions not covered in this manual, please contact Midea customer support.
A digital version of the User Manual is available here.





