What Kind of Light Bulb Goes Under a Whirlpool Microwave?
The correct light bulb for under a Whirlpool microwave is typically a low-wattage (usually 20-40 watts) appliance bulb designed to withstand high temperatures and electrical interference, often with a standard E17 intermediate base.
Understanding the Under-Microwave Light
Many Whirlpool microwaves feature an external light located on the underside of the appliance. This light serves a vital purpose: illuminating the stovetop or countertop below, providing improved visibility while cooking. Unlike a regular household bulb, the bulb used in this location needs to be able to withstand the heat generated by the microwave itself and the stovetop below. Using an incorrect bulb can lead to premature burnout, damage to the microwave, and even safety hazards.
Identifying the Correct Bulb Type
The under-microwave light bulb isn’t just any bulb you can pick up at the hardware store. Whirlpool specifies particular characteristics that are crucial for safe and effective operation. Here’s what to look for:
- Wattage: Generally, Whirlpool microwaves use a 20-40 watt bulb. Refer to your microwave’s user manual or the label near the bulb housing for the exact wattage requirement. Exceeding the specified wattage can damage the microwave’s electrical components.
- Base Type: The most common base type is an E17 intermediate base. This refers to the diameter and thread type of the bulb’s screw-in portion. Make sure the replacement bulb matches this base type for a secure and correct fit.
- Bulb Type: Look for an appliance bulb specifically designed for microwave ovens. These bulbs are constructed to withstand high temperatures and electrical noise generated by the microwave. Standard incandescent or LED bulbs aren’t suitable replacements as they can overheat or fail prematurely.
- Voltage: Confirm the voltage requirement, typically 120V in North America.
Steps for Replacing the Bulb
Replacing the under-microwave light bulb is a relatively straightforward process. However, safety should always be your top priority.
- Disconnect Power: Unplug the microwave from the electrical outlet before attempting any repair or maintenance. This prevents electrical shock.
- Locate the Bulb Housing: The bulb housing is typically located on the underside of the microwave, near the front.
- Remove the Cover: Most bulb housings have a removable cover, usually held in place by screws or clips. Remove the cover carefully.
- Remove the Old Bulb: Unscrew the old bulb. If it’s difficult to grip, use gloves or a cloth to avoid burning your fingers.
- Install the New Bulb: Screw in the new appliance bulb of the correct wattage and base type.
- Replace the Cover: Reattach the bulb housing cover securely.
- Reconnect Power: Plug the microwave back into the electrical outlet.
- Test the Light: Turn on the under-microwave light to ensure the new bulb is working correctly.
Common Mistakes to Avoid
- Using the Wrong Wattage: As previously emphasized, using a bulb with a wattage that exceeds the specified rating can damage the microwave’s electrical system. Always consult your owner’s manual or the label near the bulb housing.
- Using a Standard Light Bulb: Standard household light bulbs are not designed to withstand the heat and electrical interference inside and around a microwave. They will likely burn out quickly and may pose a safety risk.
- Forcing the Bulb: If the bulb doesn’t screw in easily, double-check that the base type is correct. Forcing the bulb can damage the socket.
- Ignoring the Voltage: Ensure the replacement bulb matches the voltage requirement of your microwave (typically 120V).
- Working Without Disconnecting Power: This is a critical safety measure. Always disconnect the power before working on any electrical appliance.
Bulb Comparison Table
| Feature | Appliance Bulb (Correct) | Standard Incandescent Bulb | Standard LED Bulb |
|---|---|---|---|
| Heat Resistance | High | Low | Moderate |
| Electrical Noise Resistance | High | Low | Low to Moderate |
| Lifespan | Designed for Appliance Use | Shorter lifespan in appliances | Shorter lifespan in appliances |
| Wattage | Typically 20-40 watts | Varies | Varies |
| Base Type | E17 Intermediate Base (Most Common) | Varies | Varies |
Frequently Asked Questions (FAQs)
Where can I find the correct replacement bulb?
Appliance bulbs suitable for Whirlpool microwaves can be found at most major appliance retailers, hardware stores, and online marketplaces. Be sure to check your microwave’s model number to ensure compatibility. Many online stores allow you to search by model number to find the exact replacement part.
Can I use an LED bulb instead of an incandescent appliance bulb?
While LED bulbs designed for appliance use are becoming more common, it’s essential to verify that they are specifically rated for use in microwaves and can withstand the temperatures and electrical interference. Read the manufacturer’s specifications carefully. Not all LEDs are created equal.
My microwave doesn’t have a light bulb. Is it missing?
Not all Whirlpool microwaves have under-cabinet lighting. Refer to your user manual or the product specifications online to determine if your model is equipped with a light.
How do I find my microwave’s model number?
The model number is usually found on a label inside the microwave oven, often located on the side wall or behind the door. It might also be printed on the back of the microwave.
What happens if I use a bulb with a higher wattage than recommended?
Using a bulb with a higher wattage than recommended can overload the microwave’s circuit and potentially damage its electrical components. It can also create a fire hazard due to excessive heat.
The bulb housing is difficult to open. What should I do?
Ensure you’re using the correct tool (screwdriver, etc.) and applying gentle, even pressure. If the screws are rusted or stripped, try using a rubber band or steel wool to improve grip. If it’s still difficult, consult a qualified appliance repair technician. Do not force it, as you could damage the microwave.
How long should an appliance bulb last in my microwave?
The lifespan of an appliance bulb varies depending on usage and bulb quality, but typically they last for several months to a year. If you find yourself replacing the bulb frequently, there might be an underlying issue, such as voltage fluctuations or a faulty socket.
Can I use a halogen bulb as a replacement?
While halogen bulbs can provide bright light, they often generate more heat than appliance bulbs. Therefore, it’s generally not recommended to use a halogen bulb unless it’s specifically approved for use in your Whirlpool microwave.
My new bulb isn’t working. What could be wrong?
First, ensure the bulb is securely screwed in. Then, check the outlet to confirm it’s providing power. If the outlet is fine, the problem may be a blown fuse or a faulty socket in the microwave. Consider contacting a qualified repair technician.
Is it safe to touch the light bulb after it’s been on?
No, it is generally not safe to touch the light bulb immediately after it has been on, as it can be extremely hot and cause burns. Allow the bulb to cool down completely before handling it.
Do I need to use a special tool to replace the light bulb?
In most cases, you’ll only need a standard screwdriver to remove the bulb housing cover. Gloves are also recommended to protect your hands and provide a better grip.
How do I dispose of the old light bulb?
Dispose of incandescent bulbs in the regular trash. If you’re using a fluorescent or LED bulb, check your local regulations for proper disposal, as these may contain hazardous materials. Some retailers offer recycling programs for these types of bulbs.