Kitchen hood repair tips - 5 major problems
Reasons for Failure
It’s one thing if your kitchen hood is already a decade old and recently it has been weakly drawing air. Here it is already possible not to think about repair, it is easier to buy new equipment. But what if the purchase did not last you a year, and the fan can no longer cope or is out of order at all? The first step is to find out the cause of the malfunction, and then eliminate it on your own. The main "culprits" of the breakdown may be:
- Improper operation of the home exhaust system. First, you must clean the strainer (grease trap) at least once every 3 weeks. The carbon filter must be completely replaced once every six months or when the indication on the panel informs about it (a special lamp is installed in the new models). Secondly, it is forbidden to start the exhaust fan above the stove when it is not on the pan. Hot air can quickly damage the system, which then will be quite difficult to repair yourself. Thirdly, the hood must be turned on 2-3 minutes before the start of cooking and turned off 10-15 minutes after the end of cooking. Otherwise, the fan may not be able to cope with the volume of fumes, as a result of which an unpleasant odor will be heard around the room.
- Broken contacts. The operation of the system is accompanied by a slight vibration, which can lead to an interruption of poor contact on the control unit or further along the chain. This rarely happens, and then, only with Chinese products.
- Incorrect installation. With improper installation, the hood in the kitchen may stop working, which happens for reasons such as poor quality wire connection in the terminal block or a strong bend in the duct (corrugation).
- Problems with wiring. Perhaps the outlet just stopped working or the circuit breaker on the shield is knocked out, and you already panic that the hood does not work in the kitchen and it needs to be repaired urgently.
All these reasons can lead to failure and further repairs, so consider all points for the future, so that this situation does not occur anymore!
The main types of damage
Now we will proceed as follows: in turn, we list all the existing malfunctions and under each we provide instructions for repairing the hood in the kitchen with our own hands. Breakdowns will be listed from the most popular to those that are least likely to occur and which are more difficult to repair at home.
The light does not turn on
Very often, an exhaust panel is used to lighting in the kitchen working area.This is really convenient and is a competent approach, as powerful technology installed LED lamp or halogen.
If your lighting does not work, you must take the following repair measures:
- Check the bulb itself, it may have burned out.
- Turn on the fan to make sure it is working. If the blades do not spin, we’ll talk about how to repair the system a little lower. The engine is running - look for a malfunction further.
- Check the voltage at the outlet using an indicator screwdriver. Immediately look at the switchboard, perhaps the machine was knocked out. Is the outlet OK? If yes, you need to check the integrity of the electric cord, after which the backlight switch and other elements of the circuit will ring with a multimeter. Thus, you will find by exclusion the cause of the malfunction and be able to proceed to repair the hood in the kitchen with your own hands. Usually, hands do not reach this, because most often the bulb burns out or the socket fails.
Weakly pulls
The second most common malfunction is the kitchen hoods - the fan does not pull well. Not sure what to do in this case? Things are easier here. First of all, check the contamination of the filters and grease trap. Most often, these two components are to blame for the fact that the hood does not draw air into the ventilation or poorly ventilates.
In order to repair the hood with your own hands, you need to clean the filters and re-enable. You can see how to clean it correctly in this video tutorial:
A situation such as a vacuum in a room with closed windows is also possible. As a result, the hood will pull weakly or even stop drawing air. In this case, the repair is that you need to open the windows yourself and ventilate the kitchen in a natural way.
Another reason that the hood does not pull well is the lack of draft in the ventilation duct of the house. In this case, you can check the presence of draft with a regular lighter - light a fire and bring it to the ventilation hole in the wall, as shown in the photo. If the flame does not draw into the ventilation hole, it will be necessary to make forced ventilation, which we will discuss below.
Not working at all
If nothing happens when you turn on the button on the panel, it will be much more difficult to repair the hood in the kitchen yourself. This is just the case that we talked about above - and the fan does not turn and the light does not turn on. First you need, again, to check the electrical cord, the voltage at the outlet and the machine in the shield. If everything works, pick up a multimeter and go to the "ringing" of the circuit. First of all, it is necessary to test the switch on the panel; one of the contacts (as a rule, the first one) may have burned out. Next, look at the diagram where the fuse is located, which at least blows. 
Is the fuse operational? Check the capacitor, if its resistance is normal and does not seem to swell, most likely the engine is not working. About, how to check capacitor, we told in a separate article. The motor windings need to ring and if the malfunction is a break in the engine area, it is better to throw it out and buy a new one, because repairing the part will be very difficult and inappropriate.
Fan noise
If the hood is humming when turned on, the cause may be poor manufacturing. A lot of negative reviews about the increased noise level can be found on the Internet. The answer to the question why the system is noisy is quite simple - poor-quality assembly of the product, which in this case cannot be repaired with your own hands. For example, in companies such as Cata, Kronasteel and Elikor, the hum during operation is almost inaudible even at maximum speed. We recommend that you immediately familiarize yourself with how to choose a hood for the hometo know by the name of the best manufacturers of kitchen appliances!
If you are sure of the quality of the selected products and you probably know that the malfunction is in something else, we recommend checking the quality of the housing to the wall / kitchen unit. Even a small gap during vibration can cause knocking, rustling, ringing. So that the equipment does not make noise, it is necessary to do the following - tighten all the fasteners or put a piece of foam in the problem area, which will eliminate the knock.
If the engine hums but does not start, it is most likely the cause of the malfunction in the fuse. DIY repair of the hood in this case is quite simple - you need to replace the fuse with a new one.
Do not switch speeds
Everything is obvious here - the button in the control unit does not function. You must remove the protective screen and visually check the button, as maybe just burned out contact. After that, look through the tracks on the board and ring the circuit with a multimeter.
In addition, the cause of the malfunction may be a starting capacitor that has burned out. In this case, DIY repair of the hood is quite simple - just replace the capacitor yourself.
Instructions for repairing the backlight are provided on the video:
The problem is in the apartments
In apartment buildings, especially on the upper floors, homeowners are faced with such a problem when the hood does not blow, but blows, that is, it works in the opposite direction. What to do in this case? The trouble is that the air blows from the ventilation hole not only in the kitchen, but also from the toilet and bathroom. There are reviews on thematic forums that it is easiest to take and drown out natural ventilation, but such repairs do not need to be done. In order to repair the central ventilation itself, which does not suck, but blows, it is necessary to create forced air intake by installing exhaust electric fans, such as Vents. Their cost is relatively small, but the malfunction will be overcome.
So we have provided a list of possible exhaust malfunctions. We hope you find the answer to your question and now you know how to repair the hood in the kitchen with your own hands!
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Hello, I have a question, if this can of course be done on your site. The hood is buzzing only at 1 and 3 speeds, 2 and 4 are quiet. What could be the reason, because there is only one motor?
Hello. The hood is quite expensive but it has broken. When I turn on the light or the hood itself, it immediately turns off. What can help please
Hello! I have the same. When the network is turned on, the machine in the electrical panel is turned off. The electric rang said the engine was broken. Look for a new one.
Look for a short circuit in the connected equipment.
The question is not clear. When you turn on what kind of light that turns off.
We bought a hood Krona Mery 600-inclined with a sensor, after turning off the operation, two clicks are heard, what is it?
Perhaps the relay is tripping.
These two halves of the check valve are lowered back
My cata hood worked 2 years, and 2 weeks ago it was not turned on and there was a click and does not turn on !!? what could it be? and what is broken?
The husband bought a hood in RBT 09/22/2017. KRONA JESSICA SLIM 500, until that day she was lying in a box until they made repairs in the kitchen.Now everything is installed and it turns out that the hood works in the opposite direction and is very noisy! Please tell me how we can fix the problems, they hurried to throw out the box ...
If you live in an apartment building, there may be a reason not in the hood, but in the ventilation system.
I have a hood from Siemens. The number 1 constantly flashes on the ventilation intensity display, even when the ventilation intensity changes. Please tell me what is the reason for such a malfunction.
Hello, there is a hood for Samsung hdc6a90ux. The problem with the touch panel does not work all the buttons except the modes of increasing the speed “+”, the hood starts, it works, but turn it off only by unplugging it from the outlet. The question is what is the reason (there are no vibrations during operation, cable ties are fixed), the warranty is out. Is it worth it yourself to understand or in the service? PS: I didn’t study the hands of “Zh” from the basics of electrical engineering.
+ When working on the panel, the speed mode blinks alternately and the letter R, or A
Hello) The hood works, the motor turns, but the air itself does not draw. The nets are clean.
The same problem, everything works a new hood Hans. the duct led into the ventilation thought maybe there is clogged. I disconnect the corrugation from there as from a jet plane, the air blows out but the hood does not pull at the same time. Very very weak. What can be wrong? It seems that everything is simple, the engine is a fan and everything but this is not a match at the input and output.
Hello, but our first speed has stopped working, and 2 and 3 are working. What could be the reason?
Good evening, please tell me the hood does not start the fan. Yesterday everything worked well, and today I turned it on, but the fan does not start.
Good afternoon, we have such a problem with the MBS hood - after turning off the hood, after a while it turns on itself, what can you tell me?
Hello. I washed the hood and it stopped working at all ...
I have a simple hood (TEKA). It stopped turning on, but there is a backlight. Suspicion fell on the limit switch, which turns on the fan when you pull out the filter. It’s hard to get to (it’s hidden in the filter runners) so it sprayed WD. And lo and behold, after 2-3 minutes it worked. Maybe someone will come in handy.
Tell me, please, if the hood turns on, the light is on, but the motor only buzzes without rotating the blades, which may be connected. Just bought, the equipment is new (the plug has already been cut off). If you “push” the motor with a screwdriver, then it slightly accelerates and starts, but it does not start.
Cool, that already cut the plug. It was necessary to check immediately.
See the quality of ALL contacts, perhaps a drawdown somewhere. Motors there are usually with split poles, that is, without capacitors, which means that there can be no problems as such. Also check if the engine rotates without voltage, just if you spin it by hand.
If rotation is difficult - there may be a defect, well, that is, initially the bearings wedge in - either grease or look for the same and change.
Good evening, Electric cooker hood inclined. Elikor firm, turn on the hood, it takes a couple of minutes and it turns off, at any of 4 speeds, turned off the light inside, turns off anyway, restarting the hood by pulling the plug from the outlet, what could happen ???
It all depends on what is inside the hood, there is no control board? If there is, then there may be a problem in it - or a malfunction or electronics goes into defense. This may occur due to heating (check the contacts) or inter-turn short circuit in the engine (unlikely, but anything is possible).To begin, disassemble everything and conduct a visual inspection. Try to crank the engine manually - does it spin well ...
The hood works but there is no light. What can be with light, except for burnt out bulbs? Cooker hood cata v-600 / A INOX
I got a peramide hood from samsara, the connection was cut off, and now I haven’t planned to connect the sink to the magician, now I don’t know what to do, please help
When you turn on the engine buzzes, but the rotor does not rotate. If you rotate the rotor by hand, it rotates without much effort. Even if you untwist with your hand, then still the rotor does not rotate, but simply the engine hums and stops.
Krona Alva 600S white, touch, tell me please, 3 speeds stopped turning on, although 3 is on the display, what could be the reason?
kuppersberg hood, the motor itself does not start the rotor, you’ll accelerate it by hand further, it already spins all speeds, but it does not start itself, which may be. You rotate the rotor without power by hand, there are no wedges.
Stupid problem: the light contact has fallen, the first button. Cut off from the plate, because there is no soldering iron and pressed between the plastic and the light plate. After trying to put ... Once pressed, released - the light disappeared. So with everything else. What to do? Maybe something fell out, did not notice. Below there is a plastic plate with a spring, which went inside. Two small similar records dropped off. one, it seems, was under the button of light, the second under the spring.
The problem, in fact, is that the contact is not pressed here ... And once it is pressed ... Let go - gone out.