How to Replace an Over the Range Microwave

Most likely, you chose an over the range microwave because of its sleek, built-in look, versatility and space-saving functionality. These appliances can function as both quick cookers and range hoods for the ranges beneath. That makes them a great choice for small kitchens where every inch of countertop space is at a premium. Getting the microwave off the counter means more workspace in your kitchen coupled with a cleaner, more custom look. But all of these features come with the compromise of adaptability. Building the microwave into the cabinets makes it harder to move around or replace, but that shouldn't stop you from upgrading to a new model when it's time. Our step-by-step instructions below will show you how to replace an over the range microwave, allowing you to upgrade your kitchen on your own.

It can be a daunting question: How do I replace an over the range microwave? But in reality, it's easier than you might imagine. Swapping out these kitchen appliances is easily doable and, for most people, it doesn't even require the help of a professional. Reference our step-by-step guide below to switch out your old style for a new one. The result? You'll give your kitchen a quick but substantial and stylish upgrade.

1. Measure Your Current Microwave: The first step in the replacement process is measuring your current setup so you know which size to buy. Generally, over the range microwaves measure 29 to 30 inches wide with a depth of 15 to 17 inches, but height can vary, so make sure to get an accurate measurement before buying a new built-in microwave.
2. Pick Your New Unit: Now that you have the measurements of your existing configuration, use them to select a new microwave. For the easiest possible installation, you should buy an over the range microwave with a trim kit. Remember, standard models are not designed to be mounted. Consider picking a microwave with some of the more coveted, modern features, like convection modes and fast cooking times. Some top microwave brands to look for include Whirlpool, GE, Frigidaire and KitchenAid.
3. Unscrew the Microwave: Typically, the existing microwave will be attached to the cabinets via a series of screws on the bottom of the cabinet above. With an extra set of hands to help you balance the microwave once it's unscrewed, remove the screws and the microwave. You'll also want to remove the existing mounting bracket, assuming that it won't fit the new model you plan to install.
   
4. Install the New Bracket: The new over the range microwave will come with its own purpose-built bracket or trim kit that's used to keep it securely attached to the wall. Making sure the bracket is properly centered and flush to the bottom of the cabinet, mark the holes where you'll place the screws. Following the instructions on the new microwave's installation manual, screw the new bracket into place using included anchors or if possible, a stud in the wall.
5. (If Needed) Install the Filters: One of the great things about choosing this type of microwave is that it can be used as a hood vent over your range, serving as two appliances in one. If you've selected a microwave-hood combo (sometimes called a "micro-hood"), now's the time to install the venting into the bottom of the microwave. At this point, you'll also want to install any filters provided by the manufacturer.
6. Hang the New Microwave: Before you hang the microwave, make sure that there's a hole in the bottom of the cabinet for the appliance's electrical cord. Now all there is to do is angle the microwave up and attach it to the bracket. Finally, use a drill to tighten up all the screws and then plug in your microwave. It should now be ready to use! You're no longer asking about how to replace an over the range microwave—you're an expert in the field.
   

While these instructions can make you an expert in how to replace an over the range microwave, note that these instructions do not apply to every single over the range microwave. Installation may differ from brand to brand or model to model. Generally, the manufacturer will provide detailed instructions on how to install the microwave, and it's important that you closely follow these instructions for the best possible result.

How Do You Replace Over The Range Microwaves?

Unscrew the existing model from your cabinetry, then install the new bracket or trim kit that comes with your new over the range microwave. Install filtration devices if necessary, then hang your new version ensuring that there's a hole that leads through your cabinet to allow for any electrical cords. Finally, attach to your new bracket or trim kit. For detailed instructions, review our complete guide.

What Tools Do I Need To Install A Microhood?

When installing, you'll likely need a common drill, a tape measure, a screwdriver and an extra set of hands. Always check your manual, though. More intensive jobs may call for a level and eye protection like goggles.

How Do You Vent an Over The Range Microwave?

If your microwave doubles as a smoke and grease remover as you cook on the range below, you'll need to do a bit of extra work to ensure your venting or filters are installed correctly. Installing the filters is relatively easy. When it comes to ducting, always make sure to follow the directions in your manual, but as a general rule you'll need to connect the duct before and as you install if your microwave acts as a range hood. Make sure you connect your damper correctly as well. If you're not sure the connection is correctly made to the rear or top of your appliance, give our team a call at 800-860-3577 and we'll help you to properly install it.

How Do You Replace a Range Hood with an Over The Range Microwave?

To begin installation, you will first need to turn off the circuit breaker. Most range hoods are hardwired internally through the back right or top right. Remove knobs for range or cooktop (to avoid accidentally turning it on) and cover the surface with a blanket. There will be access to the wires by removing a cover from underneath which can be accessed by removing the filters. Once the cover is removed, confirm that the wires are off with an electric tester and begin removing wire nuts, plus remove the strain relief nut. The hood is secure with four screws into the top cabinet, which can be accessed from underneath two on each side. Have someone hold the hood while removing the screws, then gently lower the hood away while feeding the wire through the back. Before hanging the over the range microwave, you will need to bring the existing hardwired BX (greenfield or flexible conduit) into the upper cabinet and convert to an outlet. Over the range microwaves require an outlet inside the cabinet and you must have a minimum of 30" between the cabinet and cooking surface.