Installation Guide for Maytag MDB4949SKZ Dishwasher

The Maytag 24” Front Control Dishwasher with Dual Power Filtration and PowerBlast® Cycle (Model: MDB4949SKZ) should be installed correctly to ensure safe and effective operation. This simplified guide walks you through the basic installation steps.

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Tools and Parts Needed

Tools:

• Adjustable wrench
• Phillips-head screwdriver
• Flat-blade screwdriver
• Level
• Measuring tape
• Pliers
• Drill and drill bits
• Hole saw (for cabinet openings)
• Tubing cutter (if modifying the water line)

Parts:

• 90° elbow fitting (3/8″ NPT)
• Teflon tape or thread sealant
• UL-approved strain relief (for electrical wiring)
• Wire nuts
• Hot water supply line (3/8″ copper or braided steel)
• Drain hose clamp
• Electrical cable (for hardwiring)

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Step-by-Step Installation

1. Prepare the Cabinet

• Ensure the cabinet opening is at least 24″ wide, 24″ deep, and 34–35″ high.
• Drill holes for the drain hose, water supply, and power cable.

2. Unpack the Dishwasher

• Remove packaging and all internal shipping materials.
• Leave the sound insulation blanket attached.

3. Attach the 90° Elbow

• Wrap Teflon tape around the elbow fitting threads.
• Connect the elbow to the dishwasher’s water inlet (pointing it toward the back).

4. Connect Water Supply Line

• Attach your hot water line to the elbow fitting.
• Route the line through the cabinet but do not connect to the shutoff valve yet.

5. Install the Drain Hose

• Secure the hose to the dishwasher’s drain port.
• Route the hose through the cabinet to your sink drain or disposal.
• Ensure a high loop at least 32″ off the floor to prevent backflow.

6. Level the Dishwasher

• Adjust leveling legs to make the unit level from front to back and side to side.
• Use a level to check alignment.

7. Slide Dishwasher into Place

• Carefully push the dishwasher into the cabinet.
• Ensure all hoses and wires remain free and untangled.

8. Secure the Dishwasher

• Use the mounting brackets to attach the unit to the countertop or cabinet sides.
• Make sure the door is aligned with the cabinet front.

9. Electrical Connections

For Hardwiring:

• Turn off power at the breaker.
• Remove terminal box cover.
• Install strain relief.
• Connect black to black (hot), white to white (neutral), and green to ground screw.
• Use wire nuts and replace cover.

For Plug-In:

• Plug into a grounded 120V outlet.
• Never use extension cords or adapters.

10. Connect Water Supply

• Attach water line to shutoff valve.
• Turn on the valve and check for leaks.

11. Final Checks

• Turn on the power.
• Run a short test cycle to check for leaks, noise, and correct function.