QA

Why Is There A Piece Of Cardboard In My Microwave

The cardboard cover on the right top or side wall of the microwave interior is there by design. The cardboard (mica) covers the waveguide system that feeds microwave energy into the cavity and should not be removed.

Can I use my microwave without a waveguide cover?

While it may appear you can continue to use your microwave oven without the waveguide cover, we highly recommend you do not. Continued use could cause a short and/or corrosion to the unit’s magnetron and internal circuits creating a safety hazard as well as eventually rendering the unit beyond repair.

What happens if you remove waveguide cover?

If you are not handling the microwave with care, the waveguide will break. The waveguide is brittle so it can be broken by dishes that are roughly placed inside of the oven. Although you can use a microwave oven without a waveguide, it should be replaced before continuing use of the oven.

What is a microwave waveguide cover made of?

Most microwaves have either a plastic or mica cover called a waveguide cover. It sometimes resembles a piece of grey cardboard and is usually located either in the top of the cavity or on one of the side walls. The waveguide covers the hole through which the microwaves are fed into the oven cavity from the waveguide.

Can you replace the waveguide cover?

The waveguide cover can be replaced by an owner. MS24 and MW24: Pull out the old waveguide cover and push in the new waveguide cover.

How do you clean a waveguide cover?

The waveguide cover, found inside the oven interior, is made from mica, so it requires special care. Keep the waveguide cover clean to make sure of good microwave performance. Carefully wipe the surface of the cover with a soft damp cloth to remove any food spatters immediately after they occur.

Can I make a waveguide cover?

Sometimes a waveguide burns out with no cause. Making a new wave guide cover is easy, if you approach the task correctly.

Can I use my microwave if it has a hole in it?

If the hole is larger, microwaves might leak. However, even if the waves leak out, it is highly unlikely that they will cause any damage, as microwaves are non-ionizing in nature and do not carry much energy as individual waves in open space.

Is it safe to remove microwave cover?

You should NEVER remove the main cover unless you have a complete understanding of the risks. An improper repair could lead to potentially dangerous leakage of microwave energy.

Can you put cardboard in the microwave?

In general, you can use the microwave-safe cardboard for heating in the microwave. If the cardboard is pure fiber or cellulose material, then there should be very little concern about hazards. If the cardboard is coated with waterproof lining such as wax or plastic, then it is not recommended to heat in the microwave.

What is a waveguide made of?

Waveguide materials Typically waveguide is made of brass, copper, silver, aluminum, or any metal that has low bulk resistivity. It is possible to use metals with poor conductivity characteristics, if the interior walls are properly plated. It is even possible to make plastic waveguide!.

Why is mica used in microwaves?

Cooking appliances Mica is often used to provide insulation for ovens and microwaves. The mica sheet prevents food and contaminants from reaching the electrical components – but as mica is a dielectric, it allows the microwaves through to heat the food.

How long does a microwave last?

The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance. A large family may find themselves replacing their appliance every four to five years as they become more reliant on its use to heat up snacks and leftovers, or to defrost meals.

What is waveguide in microwave?

A waveguide is an electromagnetic feed line used in microwave communications, broadcasting, and radar installations. A waveguide consists of a rectangular or cylindrical metal tube or pipe. Either mode can provide low loss and high efficiency as long as the interior of the waveguide is kept clean and dry.

What paint can I use inside a microwave?

The best paint for microwave interiors should resist high temperatures and be labeled as microwave-safe. You can find sheets, brush-on, or spray-on paint. Among the best paint on the market today, you might consider QB Products Microwave Cavity Paint and SOTO Appliance + Porcelain Paint Touch UP.

What does a waveguide do?

A waveguide is a structure that guides waves, such as electromagnetic waves or sound, with minimal loss of energy by restricting the transmission of energy to one direction.

What is the plastic cover on the inside of the microwave door for?

InteriorThe inside of the microwave door is covered with a thick, clear plastic sheet that should not be removed. The purpose of this plastic is to prevent any interference with the metal screen in the door.

Can I clean a waveguide cover?

Waveguide Cover It is made from mica so requires special care. Keep the waveguide cover clean to assure good oven performance. Carefully wipe with a damp cloth any food spatters from the surface of the cover immediately after they occur. Built-up splashes may overheat and cause smoke or possibly catch fire.

What happens if you turn on the microwave with nothing in it?

When the oven is empty none, or almost none of the microwaves are absorbed. A large amount of energy reflects around the oven chamber resulting in large standing waves that can damage the unit. If the microwave works after it has been run while empty, then the unit is safe to use.

How do you clean a microwave crust?

Fill a microwave-safe glass or bowl halfway with water. Add one tablespoon of white vinegar. Microwave on high for five minutes. This process will steam up the walls of the microwave and loosen the dried-on gunk.

What does a magnetron do?

Magnetrons are capable of generating extremely high frequencies and also short bursts of very high power. They are an important source of power in radar systems and in microwave ovens.

What is the silver plate in a microwave?

The cover is actually a wave guide cover (mica plate) which is an important accessory in microwaving. Please leave the cover inside the microwave and do not use the product without it. If you remove and lose the waveguide cover, please visit our accessory shop to purchase a new one.