· Todd Martin · Home Appliances · 21 min read
How To Install Frigidaire Dishwasher With Granite Countertops

Install Your Frigidaire Dishwasher Under Granite Countertops
Adding a new dishwasher can refresh your kitchen. Installing a Frigidaire dishwasher under granite countertops presents unique steps. You must handle connections and secure the appliance properly. This guide makes the process clear and easy for you.
Granite countertops are beautiful and durable. They also require specific attachment methods for dishwashers. Standard brackets do not work with granite. This article will walk you through preparation, essential tools, and connecting your Frigidaire dishwasher. We also cover crucial steps for securing it to granite safely. You will learn how to test your new appliance for proper function. This ensures a successful, leak-free installation.
Takeaway
- Gather Tools First: Have all necessary tools and materials ready before starting.
- Safety Is Key: Always disconnect power and water supply to avoid hazards.
- Use Granite-Specific Brackets: Do not drill into granite; use side-mount brackets or an installation kit.
- Test Connections Thoroughly: Check for leaks immediately after connecting water and drain lines.
- Level for Performance: Ensure the dishwasher is perfectly level for quiet operation and proper draining.
Installing a Frigidaire dishwasher under granite countertops requires careful planning and the right tools. You will need to disconnect the old unit, make water, drain, and electrical connections, and then use specialized brackets or an installation kit to secure the dishwasher to the cabinet sides or floor, avoiding drilling into the granite itself.
Preparing for Your Frigidaire Dishwasher Installation
Before you begin installing your Frigidaire dishwasher, proper preparation saves time and prevents problems. This initial phase sets the foundation for a smooth installation. I always start by clearing the area and checking my supplies. Make sure you have enough space for the new appliance.
First, identify the location for your dishwasher. Most dishwashers fit into a standard 24-inch wide opening. Measure the height, width, and depth of your space. Compare these measurements to your new Frigidaire dishwasher’s dimensions. You need to ensure the appliance slides in easily. Remember to account for the thickness of flooring or any underlayment.
Next, locate the necessary utility connections. A dishwasher needs a hot water supply line, a drain line, and an electrical connection. These connections are typically under the sink or in the cabinet next to the dishwasher opening. Verify that the shut-off valves for water and the electrical outlet are easily accessible. You may need to install new lines or an outlet if they are not present. Understanding your existing setup is crucial for a successful installation. You should also decide if you will install the dishwasher before or after the countertops are in place, which can sometimes impact the process. Read our article on when to install a dishwasher relative to countertops.
Finally, clear out the cabinet space and surrounding area. Remove anything that might get in your way. Lay down a drop cloth or old towels to protect your floor and cabinets from potential water spills. This preparation ensures you have a clean, safe, and efficient workspace. A clear area helps you focus on the task at hand.
Essential Tools and Materials for Dishwasher Installation
Having the right tools and materials is critical for installing your Frigidaire dishwasher correctly. I always gather everything before starting any project. This prevents interruptions and makes the work flow smoothly. You don’t want to realize you’re missing a vital part mid-installation.
Here is a list of tools you will likely need:
- Adjustable Wrench: For tightening water supply and drain line connections.
- Pliers: Useful for gripping and turning various fittings.
- Screwdriver Set (Phillips and Flathead): For removing old brackets and securing new ones.
- Level: To ensure your dishwasher sits evenly, which prevents leaks and improves performance.
- Measuring Tape: For verifying dimensions and clearances.
- Drill and Drill Bits: For pilot holes if attaching side brackets or securing the kick plate.
- Wire Strippers/Cutters: If you are hardwiring the electrical connection.
- Bucket and Towels: For catching residual water during disconnection.
- Utility Knife: For cutting drain hoses or insulation.
Beyond tools, you will also need specific materials:
- New Water Supply Line: Often braided stainless steel, typically 6-10 feet long.
- Drain Hose: Usually comes with the new dishwasher, but check for proper length.
- Electrical Cable/Cord: If hardwiring, use appropriate gauge wire. If using a plug, ensure you have a compatible outlet and cord.
- Teflon Tape: For sealing threaded water connections to prevent leaks.
- Granite Countertop Dishwasher Installation Kit (or Side-Mount Brackets): This is essential for securing the dishwasher without drilling into the granite. This kit usually includes special clips or brackets that attach to the side cabinets. I recommend looking into a granite countertop dishwasher installation kit for ease.
- Wood Screws (1/2” - 3/4” length): For securing side-mount brackets to the cabinet frame.
Gathering these items beforehand saves time and ensures a successful installation. It helps avoid frustrating trips to the hardware store. Always consult your specific Frigidaire dishwasher manual, as it may recommend additional tools or parts.
Disconnecting Your Old Dishwasher Safely
Removing an old dishwasher is the first major step in your installation process. This requires caution to avoid water damage or electrical shock. I always prioritize safety during this part of the job. Taking your time here makes the rest of the installation much simpler.
First and most important, you must disconnect power to the dishwasher. Locate your home’s main electrical panel. Find the circuit breaker labeled for the kitchen or dishwasher and flip it to the “OFF” position. If your breakers are not labeled, turn off the main breaker to your house. This ensures no electricity reaches the appliance. Test the power at the dishwasher outlet or wiring to confirm it is off.
Next, you need to shut off the water supply. The hot water line for your dishwasher typically comes from the hot water pipe under your kitchen sink. Locate the shut-off valve on this line and turn it clockwise until it is completely off. Have a bucket and towels ready. There will likely be residual water in the line and the old dishwasher itself. Place the bucket under the water line connection before loosening it.
Now, disconnect the water line from the old dishwasher. Use an adjustable wrench to carefully loosen the compression nut or fitting. Allow any remaining water to drain into your bucket. Then, detach the drain hose. This hose usually connects to a dedicated drain port on your sink’s garbage disposal or a standpipe. Use pliers or a screwdriver to loosen the clamp holding it in place. Be prepared for more residual water from the drain hose.
Finally, disconnect the electrical wiring. If your dishwasher is plugged into an outlet, simply unplug it. If it is hardwired, open the junction box on the front bottom of the dishwasher. You will see three wires: black (hot), white (neutral), and green (ground). Use wire nuts to secure the ends of these wires to ensure they do not touch anything. Then, untwist the wire nuts connecting them to the house wiring. Carefully separate the wires. At this point, the old dishwasher is ready to be pulled out.
Positioning Your New Frigidaire Dishwasher
Once the old appliance is out, you can position your new Frigidaire dishwasher. This step is about getting the dishwasher into its general location and ready for connections. Careful placement now saves you trouble later. I find it easiest to work slowly and check alignment as I go.
First, prepare the opening. Make sure the floor is clean and dry. Check for any debris or old mounting hardware that might obstruct the new dishwasher. If you have new flooring, ensure it does not create too high a lip for the dishwasher to slide over. Sometimes, appliances need to sit directly on the subfloor if the finished floor is too thick. You want the dishwasher to slide in easily without scratching your floor or cabinets.
Next, slide the new Frigidaire dishwasher into the opening. Do not push it all the way in yet. You need access to the front bottom area for water, drain, and electrical connections. Position it just far enough so that the connections are accessible from the front or side. If your model has a junction box or water connection point on the back, ensure you can still reach it. Gently guide the dishwasher into place. Avoid forcing it, as this can damage the flooring or the unit itself.
Now, make initial adjustments for height. Most dishwashers have adjustable leveling legs on the bottom. You can raise or lower the front and back legs by twisting them. The goal is to get the dishwasher close to the final height of the countertop. You want about a 1/8 to 1/4 inch gap between the top of the dishwasher and the underside of the countertop. This gap allows for proper leveling and securing later. Use a wrench or pliers to adjust the legs as needed.
Finally, ensure accessibility for connections. With the dishwasher partially in place, confirm you have enough room to connect the hot water supply line, the drain hose, and the electrical wiring. You may need to pull the dishwasher out slightly or angle it to reach specific ports. This initial positioning is a balance between getting the dishwasher into the opening and leaving enough space to work comfortably. Taking your time here makes connecting lines much easier.
Connecting Water and Drain Lines
This is a critical step for preventing leaks and ensuring your Frigidaire dishwasher functions correctly. Proper connections of the water supply and drain lines are essential. I always double-check these connections thoroughly. Skipping this step can lead to costly water damage.
First, connect the hot water supply line. Your new Frigidaire dishwasher typically has a threaded inlet valve near the bottom front or side. Apply Teflon tape clockwise around the threads of the inlet valve. This creates a watertight seal. Then, hand-tighten your new braided stainless steel supply line onto the valve. Use an adjustable wrench for a final quarter-turn or half-turn to secure it firmly. Do not overtighten, as this can strip the threads or damage the valve. Connect the other end of the supply line to the hot water shut-off valve under your sink. Again, use Teflon tape and tighten securely.
Next, connect the drain hose. The drain hose connects from the dishwasher’s drain pump to your sink’s drain or garbage disposal. Most Frigidaire dishwashers come with a pre-attached drain hose. If not, connect the new drain hose to the dishwasher’s drain port, usually secured with a clamp. The other end of the drain hose needs to be connected to the sink’s drain air gap, a dedicated drain port on the garbage disposal, or a standpipe. If connecting to a garbage disposal, you might need to remove a knockout plug inside the disposal’s drain port first. Use a screwdriver and hammer to tap it out, then retrieve the plug.
Ensure you create a high loop in the drain hose. This is very important. The highest point of the drain hose must be above the drain connection point, ideally just under the countertop. You can secure it to the underside of the counter with a clamp or strap. This high loop prevents dirty water from flowing back into the dishwasher from the sink. It also helps prevent siphoning, which could cause the dishwasher to drain continuously.
Finally, test for leaks before pushing the dishwasher fully into place. Turn on the hot water supply under the sink. Visually inspect all water connections you just made for any drips or seepage. Run your hand along the connections to feel for moisture. If you notice any leaks, tighten the fittings slightly until the leaking stops. This proactive check ensures your connections are watertight.
Electrical Connections for Your Dishwasher
Proper electrical connection for your Frigidaire dishwasher is vital for safety and operation. This step can be intimidating, but following the correct procedures ensures a safe hookup. I always confirm power is off before touching any wires. If you are unsure, consult a licensed electrician.
First, ensure power is off. This is the most critical safety step. Go to your home’s circuit breaker panel and switch off the breaker that controls the kitchen or dishwasher circuit. Double-check with a voltage tester at the dishwasher’s electrical box to confirm no power is present. Never work with live wires.
Your Frigidaire dishwasher will either have a power cord with a plug or be designed for a direct hardwire connection.
If your dishwasher has a power cord: Locate the dishwasher’s electrical outlet, typically under the sink. Make sure it is a three-prong, grounded 120-volt outlet. Once all other connections (water, drain) are made and the dishwasher is nearly in place, you can simply plug in the power cord. Ensure the cord does not get pinched or tangled when you push the dishwasher fully into its opening.
If your dishwasher is designed for hardwiring (no plug):
- Open the junction box: This box is usually on the front bottom of the dishwasher, accessed by removing a small cover plate.
- Strip the house wires: You will have three wires from your house electrical supply: black (hot), white (neutral), and green or bare copper (ground). Strip about 1/2 to 3/4 inch of insulation from the ends of these wires.
- Connect the wires:
- Connect the black wire from the house to the black wire from the dishwasher (usually marked “L” or “Hot”).
- Connect the white wire from the house to the white wire from the dishwasher (usually marked “N” or “Neutral”).
- Connect the green or bare copper ground wire from the house to the green or bare copper ground wire from the dishwasher (usually marked “GND” or with a ground symbol).
- Secure with wire nuts: Twist appropriate-sized wire nuts onto each connection firmly. Ensure no bare wire is exposed outside the wire nut.
- Secure the wiring: Use the strain relief clamp provided with the dishwasher or a compatible one. This clamp secures the electrical cable entering the junction box, preventing it from being pulled out accidentally.
After making all electrical connections, replace the junction box cover. Check that no wires are pinched. Once all connections (water, drain, electrical) are complete, you can proceed to the next steps of leveling and securing the dishwasher. Remember to turn the power back on only after the entire installation is finished and verified.
Securing the Dishwasher to Granite Countertops
Securing your Frigidaire dishwasher properly is crucial for stability and quiet operation. When you have granite countertops, you cannot drill into the underside of the counter. This requires a specific approach. I always make sure the dishwasher is stable before considering the job done.
Most dishwashers come with mounting tabs on the top that are designed to screw into the underside of the countertop. However, with granite, drilling into the stone is not an option. Granite is extremely hard and can crack if drilled improperly. Also, drilling could void your countertop warranty. Instead, you will use side-mount brackets or an installation kit specifically designed for granite countertops.
Here are the common methods for securing a dishwasher with granite:
Side-Mount Brackets:
- Many Frigidaire dishwashers include “side-mount” holes or slots on the front sides of the appliance frame.
- If your dishwasher came with side-mount brackets, attach them to these designated spots using the provided screws.
- Slide the dishwasher completely into the opening.
- Once the dishwasher is fully in place and leveled (more on leveling below), extend these side brackets. They should rest against the wooden cabinet frames on either side of the dishwasher opening.
- Using short wood screws (typically 1/2 to 3/4 inch length), screw the brackets directly into the cabinet side panels. Ensure the screws are short enough not to pierce through the cabinet’s outer surface. This is a very secure method.
Granite Countertop Dishwasher Installation Kit:
- These kits are sold separately and provide an alternative if your dishwasher doesn’t have side-mount capabilities or if you prefer a different method.
- A common type uses adhesive-backed mounting plates that attach to the underside of the granite. You then attach the dishwasher’s mounting tabs to these plates.
- Another type involves a specialized bar that spans the dishwasher opening and attaches to the side cabinets, providing a surface to screw into.
- Always follow the specific instructions that come with your chosen granite countertop dishwasher installation kit. These kits are designed to avoid damaging your granite. You can also explore how to secure a different brand of dishwasher to granite, as the principles are often similar, as seen in guides like how to attach a Samsung dishwasher to granite countertop.
Before securing, level the dishwasher. Use a level placed on the top edge of the dishwasher. Adjust the leveling legs (usually four) until the dishwasher is perfectly level from side to side and front to back. A level dishwasher operates more quietly, drains better, and cleans dishes more effectively. Once level, fully extend the rear legs to provide firm support.
After securing the dishwasher, push it fully into the opening. Make sure it is flush with the surrounding cabinetry. The kick plate or toe kick can then be installed at the very bottom front of the dishwasher, covering the legs and connections. This gives a finished look.
Testing and Final Adjustments for Your Dishwasher
After all connections are made and the dishwasher is secured, the final phase involves testing and making any last adjustments. This step ensures everything works as expected and prevents future problems. I never skip this part, as it confirms the installation is complete and safe.
First, turn the power and water back on. Go to your electrical panel and flip the dishwasher’s circuit breaker back to the “ON” position. Then, open the hot water shut-off valve under your sink. Listen and look closely for any immediate signs of leaks around the water supply line connection points. If you see or hear a leak, immediately turn off the water and power, then re-tighten the connections.
Next, run a test cycle. Load a few dishes or simply start an empty wash cycle on your Frigidaire dishwasher. Choose a short cycle like “Rinse Only” or “Light Wash” to conserve water and time. As the cycle runs, pay close attention to several things:
- Water Fill: Does the dishwasher fill with water? Check inside to see if water is entering the tub.
- Spray Arms: Do the spray arms rotate and spray water effectively? Listen for the sound of spraying water.
- Draining: When the wash portion of the cycle is done, does the dishwasher drain properly? Listen for the pump working and observe if the water disappears from the tub.
- Leaks: Continuously check under the sink, around the water supply line, and behind the dishwasher for any leaks or drips. Pay attention to the drain hose connection and the area where the dishwasher meets the floor. If you notice your Frigidaire dishwasher leaking from the bottom of the door, this could indicate a problem that needs immediate attention.
- Noise: Does the dishwasher run smoothly, or are there unusual noises? A properly leveled dishwasher runs quieter.
After the test cycle completes, open the dishwasher door. Check if the interior is clean and dry. Look for any standing water or signs of improper drainage. If everything looks good, you’re almost done!
Finally, make any necessary final adjustments. This includes:
- Leveling: If you notice excessive vibration or uneven draining, re-check the level and adjust the leveling legs.
- Aesthetics: Install the kick plate (toe kick) at the bottom front of the dishwasher. This panel hides the leveling legs and connections, giving a finished look. Ensure it is flush with your cabinets.
- Door Alignment: Check if the dishwasher door opens and closes smoothly and aligns properly with your cabinet doors. Most doors have adjustable spring tension, but this is usually factory-set.
Once you are satisfied with the performance and appearance, your Frigidaire dishwasher installation under granite countertops is complete. You can now enjoy your new, functioning appliance!
Maintaining Your Granite Countertops After Dishwasher Installation
After successfully installing your Frigidaire dishwasher, it’s important to remember the care of your granite countertops. Granite is durable, but it still benefits from proper maintenance. This helps keep your kitchen looking pristine for years. I always advise homeowners to protect their investment.
Regular cleaning is simple and effective. You should wipe down your granite countertops daily. Use a soft cloth and a pH-neutral cleaner. Avoid abrasive cleaners or harsh chemicals like bleach or ammonia, as these can strip the sealant. For everyday spills, a mixture of mild dish soap and water works well. Always dry the surface thoroughly to prevent water spots.
Dealing with spills promptly is crucial for granite. Granite is porous, especially if not properly sealed. Acidic liquids like lemon juice, vinegar, or wine can etch the surface if left for too long. Oily substances can also cause stains. Blot spills immediately with a soft cloth. Do not wipe, as this can spread the stain. Follow up with your regular granite cleaner. For stubborn spots, you might need to use specific methods. Our guide on how to clean granite countertop stains provides detailed solutions.
Sealing your granite countertops is another vital step in maintenance. A good sealant protects the stone from absorbing liquids and staining. Most granite is sealed at installation, but the sealant wears off over time. Depending on usage, you should re-seal your granite every 1-3 years. You can test if your granite needs sealing by putting a few drops of water on the surface. If the water beads up, the sealant is still effective. If it absorbs into the stone and darkens it, it’s time to re-seal. There are many DIY granite sealers available.
Protecting your granite from heat and impact also extends its life. Always use trivets under hot pots and pans. While granite is heat-resistant, sudden temperature changes can cause thermal shock. Also, avoid dropping heavy objects on your granite. This can cause chips or cracks. Being mindful of these practices ensures your granite countertops remain beautiful alongside your new Frigidaire dishwasher.
FAQ Section
How long does it take to install a dishwasher?
Installing a dishwasher typically takes 2 to 4 hours for someone with basic DIY skills. This includes disconnecting the old unit, making new connections, leveling, and securing the appliance. More complex installations or unexpected issues can extend the time needed.
Do I need a special kit for granite countertops?
Yes, you generally need a special kit or method to secure a dishwasher under granite countertops. You cannot drill directly into granite. Installation kits often provide adhesive-backed brackets or side-mount clips that attach to adjacent cabinets, allowing the dishwasher to be secured without damaging the stone.
Can I install a dishwasher by myself?
Installing a dishwasher is a common DIY project for individuals with basic plumbing and electrical knowledge. However, it involves working with water and electricity, which carries risks. If you are uncomfortable with these aspects or unsure about local codes, hiring a professional installer is a safer choice.
What are common problems after installing a dishwasher?
Common problems include leaks from water or drain connections, the dishwasher not draining properly (often due to a kinked hose or missing air gap loop), and unusual noises (usually from improper leveling). The dishwasher not turning on points to electrical issues or a tripped breaker.
How do I know my Frigidaire dishwasher is properly leveled?
Use a carpenter’s level on the top edge of the dishwasher. Place it across the front, then from front to back on both sides. The bubble on the level should be centered. Adjust the dishwasher’s leveling legs (usually four) until the appliance is perfectly level in all directions.
What tools do I need for a basic dishwasher installation?
You will need an adjustable wrench, pliers, Phillips and flathead screwdrivers, a level, measuring tape, and possibly a drill. For electrical work, you might need wire strippers. Essential materials include a new water supply line, Teflon tape, and a granite-specific installation kit or side-mount screws.
Conclusion
Installing your Frigidaire dishwasher under granite countertops is a rewarding home improvement project. You have now learned the essential steps to complete this task safely and effectively. From gathering the right tools to making secure connections, each phase contributes to a successful installation. Remember that careful preparation and attention to detail are key, especially when dealing with the unique requirements of granite.
I believe that taking a methodical approach makes any home project more manageable. You started by understanding your space and disconnecting the old appliance. Then, you moved on to positioning the new unit and making the crucial water, drain, and electrical connections. Securing the dishwasher without drilling into your granite countertops was a specific challenge, addressed by using side-mount brackets or a dedicated installation kit. Finally, testing for leaks and ensuring proper operation gave you the confidence of a job well done.
Your new Frigidaire dishwasher now stands ready to serve your kitchen needs, integrated seamlessly with your beautiful granite surfaces. By following these steps, you have ensured a secure, leak-free, and efficient setup. Enjoy the convenience and performance of your new appliance. For any future maintenance or questions, always refer to your Frigidaire manual or consult a professional.
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