Guide for self-examination and resolution of abnormal microwave oven noise

Creating a cozy summer home that serves as a peaceful retreat requires careful selection of appliances that enhance comfort without compromising on style or efficiency. At Appliances 4 Less Savannah, we cater to residents in Savannah, Hilton Island, St Simons Island, and Hinesville with an array of open box, scratch, and dented appliances that are perfect for elevating your summer living. Here’s our guide to the essential appliances for a cozy summer home.

When the microwave oven abnormal noise, often means that some of the internal parts of the problem. These noises may be a warning sign that something is going on inside that requires attention. Understanding the meaning behind these sounds is not only to extend the life of equipment, but also an important guarantee of family safety.

(1)、 fast identification of abnormal noise

1. Normal working voice characteristics

When the microwave oven is running, it will produce certain normal working sound. Cooling fan running will produce a smooth wind sound, the transformer will produce uniform electromagnetic hum when working, rotating turntable system will produce a slight mechanical friction sound. These sounds are combined to form the characteristic working ensemble of the microwave, usually kept in the normal range of 40-60 decibels.

Normal working sound is characterized by stability, regularity, there will be no sudden changes or harsh abnormal sound. Newly purchased microwave ovens can be a little loud in the beginning and often improve after a few uses. As long as the sound is smooth and no noise, and the heating function is normal, usually no need to worry.

2. Identification characteristics of fault noise

High-frequency squealing or scratching sounds may indicate excessive fouling or deformation of the cooling fan blades. This sound is usually due to the fan rotation caused by imbalance, need to clean or replace the fan.

An ever-increasing buzz often points to a transformer fault. When the silicon steel core of the microwave oven transformer is loose, it will produce abnormal electromagnetic vibration and noise. This sound is different from the normal transformer working sound, and is usually louder and more irregular.

A regular click could mean something is wrong with the turntable system. When there are impurities such as food debris at the bottom of the turntable, abnormal sound will be produced during the rotation process. In addition, the turntable motor gear damage or internal parts loose can also produce similar noise.

(2)、 home processing of common faults

1. Handling of cooling system problems

Fan problems are one of the most common sources of abnormal noise. The first step to dealing with fan noise is power-off cleaning. After unplugging the power plug, wipe the dust and oil on the fan blades with a soft cloth. When cleaning should be careful not to force too much, so as not to cause blade deformation.

If noise persists after cleaning, it may be necessary to check the fan for distortion. Deformed fan blades need to be replaced, otherwise it will not only produce noise, but also may affect the heat dissipation effect, and then damage other parts. Regular cleaning of the fan is an effective way to prevent such problems.

2. Turntable system exception handling

Turntable abnormal sound is usually relatively easy to solve. First remove the turntable and bracket, thoroughly clean the bottom of the turntable and bracket track with a damp cloth. Impurities such as food scraps are the main cause of the abnormal sound of the turntable, and thorough cleaning can often solve the problem.

If the turntable still has abnormal noise after cleaning, it is necessary to check whether the turntable is placed smoothly and whether the turntable bracket is aligned. After long-term use, the turntable bracket may be slightly deformed, resulting in an unbalanced rotation, which may require replacement of the turntable components.

3.Treatment of resonance and placement problems

The unstable placement of the microwave oven is a common cause of resonance noise. Check whether the four mats of the microwave oven are in complete contact with the countertop and adjust them if necessary. The antiskid mat on the bottom of the microwave oven can effectively reduce the vibration and noise.

At the same time, check the microwave oven around whether there are foreign bodies, to ensure that there is enough room for heat dissipation. Keep the outside of the microwave oven clean and well ventilated, not only can reduce noise, but also extend the service life of the equipment.

(3)、 the need for professional maintenance

1. Electrical system failure

When the heating efficiency of the microwave oven is significantly reduced and accompanied by abnormal noise, it is likely that the magnetron has been aged or damaged. Magnetron is the core component of the microwave oven, its replacement requires professional skills and tools, it is not recommended to handle.

If you hear an internal arc or smell burning, it is likely that the high-voltage capacitor or diode failure. Such problems not only affect the use, there are security risks, must immediately stop using and contact the professional maintenance.

2. Damage to critical components

The breakage of mica sheet needs to be treated professionally. The mica sheet is located on the right side of the oven chamber and needs to be replaced if damaged. The damage of mica not only affects the normal work of microwave oven, but also has potential safety hazard.

Transformer failure is also a common problem that requires professional maintenance. If the microwave oven emits an abnormally large hum and the heating is normal, it may be that the transformer core is loose, and this situation requires professional inspection and maintenance.

(4)、safety prevention and routine maintenance

1. Regular cleaning and maintenance

Weekly cleaning is the basis to keep the microwave oven in good working condition. Wipe the inner wall, turntable track and door seal with a soft cloth to prevent oil accumulation affecting the fan. In particular, after heating oily food, timely cleaning can avoid the accumulation of oil.

Clean to pay attention to safety, be sure to pull the plug. Use a soft, damp cloth to clean. Avoid using sharp tools or corrosive cleaners to avoid damaging internal parts.

2. Standardize usage habits

Avoid idling the microwave oven. When idling, the microwave energy can not be absorbed and the magnetron is easy to be damaged. At the same time, the use of liquid heating vent cover, can reduce the noise of steam impact.

Choosing the right container is also important. Use microwave oven-specific utensils. Avoid using metal containers and closed containers. Metal containers not only make noise but may also damage the microwave oven.

3. Rational use and regular inspection

Avoid heating too much food at one time, which can overload the cooling system and cause abnormal noise. Reasonable arrangement of the heating task, to the microwave oven enough rest time, help to extend its service life.

It is recommended that a comprehensive inspection be carried out every six months. Check whether the door hinge is loose, whether the rotation of the turntable is smooth, whether the cooling mouth is smooth. Regular inspection can find small problems in time to avoid developing into a major failure.

Conclusion

Timely consideration of replacement, may be a safer and more economical choice. By understanding the meaning behind noise, we can not only extend the life of equipment, but also for the safety of home kitchens to add a guarantee.