One of the most important items of household appliances is the kitchen exhaust fan. The equipment is designed to purify the air that is formed during the preparation of various dishes. The device captures the exhaust airflow and removes it outside the house. Thus, it ensures the cleanliness of walls, kitchen furniture, and ceilings.

However, sooner or later a moment comes when malfunctions occur during the operation of the device. In this case, you can try to solve the problem yourself or contact the service provider for help. Generally, the equipment maintenance cost depends on the exhaust system model. That’s why you should familiarize yourself with the device design for the identification of malfunctions and elimination methods.

So, what common problems occur with kitchen exhaust systems?

Let’s find out!

Table of Content

Main Breakdowns of Kitchen Exhaust Systems
Noisy Exhaust Fan
Damage to the Motor
Lack of Traction During the Operation
Failure of Push-Control Button
Violation of Speed Limit
Device Doesn’t Turn On

Conclusion!

Main Breakdowns of Kitchen Exhaust Systems

Noisy Exhaust Fan

A poor assembling of the device leads to a noisy phenomenon. That’s why it’s essential to choose a hood from trusted manufacturers. Generally, the noise problem usually arises from the ventilation duct. Additionally, corrugated pipes also become the reason for poor noise.

The problem can be minimized by using a composite smooth pipe, preferably made of plastic. But make sure the plastic channel doesn’t pass by hot zones. Additionally, it’s important to choose the correct cross-section of the ventilation duct for the exhaust pipe. If the ventilation duct is less than the prescribed value, there will be more noise.

Even a small in size, the gap, when vibrated, can cause hum, ringing, rustling or knocking in the house. In this case, to fix the problem, it is enough to put foam rubber in the problem area or tighten the fasteners. Performing this operation will eliminate unpleasant sounds.

Damage to the Motor

Overheating of the device is often the cause of this accident, which occurs due to the supply of insufficient oxygen. As a result, filter contamination occurs with fat deposits. In this case, you shouldn’t independently restore the structure. If the engine is improperly handled, irreparable damage can be caused to the device.

Even if the service life of the hood exceeds three years, it’s not easier to repair the motor but to buy a new power unit. In addition to the above reasons for the breakdown of the device, a burned-out ceramic fuse or blown condensate can take the device out of working condition. To avoid this malfunction, it requires some minor maintenance. Hiring a professional technician can get you rid of this problem.

Lack of Traction During the Operation

If the device works, but the vapours are still in the kitchen, this indicates a clogged air duct or a loss of structural power. At the same time, the hood won’t provide the perfect airflow as the food particles will clog in the filter. So, during the operation of the equipment, fat deposits gradually settle on the surfaces of the device, clogging the ventilation holes. As a result, the power unit doesn’t have enough power to draw air into the system.

Cleaning the filters will help to solve this situation. However, cleaning sometimes is unable to provide the right solution. To eliminate the malfunction, remove and check the pipe for diverting the airflow. Remember, if the kitchen has closed plastic windows, it will minimize the airflow and make the process of its natural pulling harder.

Failure of Push-Control Button

The reason for this trouble is the deformation or malfunction of the button. In this case, none of the keys shows any functionality. To eliminate the problem, replace the entire button block or re-solder the contact. At the same time, you can purchase the necessary spare parts for the exhaust device in a specialized store or service centre. In the process of selecting elements for a cooker hood, it’s important to pay special attention to their compliance with a particular model of the appliance.

Violation of Speed Limit

If during the operation of the device, you might experience a poor speed limit. Regulating the intensity of the system’s operation could affect the speed limit. Therefore, you should check the button, the track on the control board, and the balancing capacitor on the motor. The problem also arises due to constant mechanical stress, the disrepair of the element, or a small burnout of the hood components. To eliminate the trouble, you need to replace the broken part.

Device Doesn’t Turn On

There are various reasons for this problem – cord breakage, engine failure, lack of power, and broken buttons. You should check the operability of the outlet and the presence of voltage in it. To do this, just turn on the backlight key. If the light comes on, it indicates that power is being supplied to the system and that the cord is in good working order. So, it’s necessary to check the voltage supply to the motor winding using a tester.

Most likely the reason for the breakdown of the hood lies in the motor. If the voltage doesn’t enter the system, you should identify the problem in the control panel or in the supply circuit. It’s worth paying special attention to the integrity of the fuses. With sudden voltage drops in the system, these elements can burn out.

Conclusion!

Regular cleaning and replacing of the kitchen exhaust system will help to increase the life of the exhaust fan and prevent the occurrence of most breakdowns. The procedure for removing fatty deposits is necessary, and it should be performed regularly.

The flammable fats abundantly deposited on the filters are well exposed to fire, which poses a threat of fire in the house. That’s why considering the preventive measures keep the device in good working order. Plus, to avoid a decrease in the efficiency of the hood, it’s necessary to replace the filters once a year. Thus, in the event of a breakdown of the structure intended for air removal, follow the above recommendations. This will help in diagnosing the device, identifying the cause, and fixing the problem.