The noise of ceiling fans is sometimes a great nuisance, especially when they are in use. The noise can be slightly annoying and quite intrusive to the comfort of the people using the fan. It does not matter who you are or what occupation you have, but it is important to note that no one can possible ignore this noisy sound for long periods of time. This is because the noise of the ceiling fan will not let you stay completely comfortable. Therefore there is always a need to find a way that can eliminate this annoying noise. The same thing applies to any other noisy appliance, including fans, pest controllers, and even cars.

This noise is a result of rubbing of the blades with the blades that make up the fan head. This is caused by either loose or worn blade mounting. You should be able to remember by now that all movements of appliances are governed by three laws: Newton’s laws of physics, Hooke’s law (Hooke’s Law), and Coulomb’s law (Coulomb’s Law). In this case the main law that applies to the situation is Newton’s third law, which clearly states that for every action there is an opposite and equal reaction. This results in a racket because if the blades of the fan are not mounted properly on the shaft of the fan, there will be friction between them. The noise caused by this friction is called rubbing noise, which has a rumble sound that can get very annoying after sometime.
What are the most common reasons a ceiling fan starts making noise?


The reasons are as follows:
T
he reason for the fan noise can be minimized if the angle between the blades and their mounting on the head is kept to a minimum. The cause for this is that if there is only a small angle between them, initial rubbing noise will be minimized. In other words, in order to prevent or reduce noise, you have to make sure that there is just enough angle between them before they start moving. To answer this problem you should first check if there is a play between the blades and their mountings on the head of the fans. You can do this by gently shaking your fan left and right while it’s still switched off. If there is play you should tighten the screws in both the blades and the mountings on the head. The noise will usually disappear at almost all fans when the angle between them is less than 45 degrees.


There are several ways of reducing or fixing issue that a ceiling fan may have. This article presents more than fifteen possible solutions to this problem, including those that are cheap and easy to do.


What factors cause ceiling fan noises?
The following factors can lead to ceiling fan noise:
Loose or worn blades can make a loud noise if there is no shaft support, or they rub against either their mounting or surfaces inside an appliance house, or each other.
The bearing that support the blade may be worn out. This results in excessive friction and noise.
Loose or broken chains, damaged motors, or a loose mounting can all cause electrical ceiling fans to make noise.
If tape was used for the installation of a fan, it could also be responsible for the noise due to rubbing particles of tape against either the mounting or other items inside an appliance house, or each other.
The insulation material used on wire can also produce a great amount of friction and sound when they rub against anything above them. This is true even if they are not moving yet.


How do I fix my ceiling fan from rubbing?
It is quite clear that the noise is caused by friction and to eliminate this problem, action has to be taken.

First, the fan head should be removed. The motion of orbits is affected by the strength and character of its wiring. The strings are kept in place by the red and black plug attached in its top part. These have strong elasticity that keeps them from moving freely. This therefore means that you will need to replace that string with a new one because you will need to connect your fan’s wiring without interfering with its orbits. To be able to do this, you will have to remove the plug from the top of your ceiling fan and your wires. Your new string is just as strong as the original. However, you can use a different color wire for every other orbit. To do this, you will have to first decide what color wire should go where. To make this decision more easy for you, there are some little switches that are attached at one end of each cord of different colors. You need to make sure that while connecting your wires together it does not interfere with the orbiting mechanism inside your ceiling fan. It is important to note that it is not easy to connect the wires because you cannot reach under your ceiling fan. It will be problematic to connect them by yourself, especially when you are doing it for the first time. You should therefore seek assistance from an expert on this matter or go through the manual that comes with your fan head.

Second: When you have put the new wire in place, you will need to make sure that all the orbit strings are in order and move freely without interfering with one another. When you have done this, there will be no need of friction between the fans blades and its head that causes this annoying noise, and therefore there will be no need of replacing any worn blades or tightening loose mountings.

Third: The next step is to clean the fan blades. There are 3 methods to do this. The first one is by using a vacuum cleaner that has an attachment along with a hose that can reach into the shaft of the fan and reach at least up to its outer surface. When you use this, make sure that you can get all the dust inside the shaft along with the screws for mounting your fan head and then remove all these pieces from your ceiling fan. Next, you will need to clean each blade with a brush as suggested by your manual especially for blades that are in contact with other blades of different colors or in contact with other parts of your motor. For the other blades that are not in contact with other rotating parts of your ceiling fan, you may skip this part.

The second way to clean your fan is by using a wet cloth that you should dip it in water and then use it to wipe the dust off the blades of your fan. Make sure that you wipe each blade individually using a separate cloth and then dry it with two or three dry rags just in case there is still some wetness left on the blade. Do not forget that when you try to clean your fan with a wet cloth, you must be careful not to get any water on its motor. You do not want any damage caused by electrical shock.

The third way is by using air pressure. This is the easiest way to clean a fan. You will just need to have a hose and then connect it to the shaft of your fan and then blow air at least up to its outer surface. Do this only when you are not going to use your ceiling fan for a while.

Fourth: Before you replace the fan blade with another one, there are some things that you need to know about it.

The first thing is that all four screws must be tightened one by one in order for it not be easy for them to turn or loosen again. You will lose these screws if they fall outside, thus resulting in their loss. Because of this, it is better to use a screwdriver that can handle the task or re-usable sticky screws that do not require screws.

The second thing that you should remember is to make sure that your fan head and its blades do not come in contact with each other. You will need to turn on your fan before putting it back, and then make sure that when you try to set it up as it was before, there is no noise at all. If there is still some sound coming from your ceiling fan, then the chances are high that you are doing something wrong and you should go through the process of fixing your ceiling fan once again.

If you are still having problems with your ceiling fan, then you can always contact a professional for assistance.
The following tables show the typical energy consumption of various types of ceiling fans.
The figures quoted are approximate: for example, to say that a particular model of fan uses “50 watts” is misleading as this may refer to use while the fan is running at full speed or some other low speed, it may be only “on standby”, or it may refer to a different method of power rating – such as air movement in cubic feet per minute (cfm) instead of watts; and so on.
The motor used in most fans has a thermal protector: it will cut out if the temperature becomes too high. This is an important safety feature.

If the fan is to be used in a moist environment, such as a bathroom or kitchen, many manufacturers recommend that the fan should be operated without the grill fitted for maximum ventilation. Many fans have clips or other facilities to allow the grill to be removed easily for cleaning purposes. The motor and bearings may rust if exposed to moisture but with care this need not happen. In particular, oil may be added to the bearings by unscrewing them from inside the motor housing and dripping slightly on each side of each bearing – never get oil on the shaft directly or you risk damaging its seals.

The mounting of the fan is also important: it must be firmly secured. The mounting must be designed to take the weight of the fan, especially if there are children in the house or if the fan is to be used in high wind areas (see High-wind safety below).

Ceiling fans are sometimes mounted with only two screws, even though they should have at least three — and some fans have four or more screws. Additional screws will usually be included with the fan if it is bought as a kit. Use all of these screws for safe operation. If your ceiling fan wobbles, tighten all its mounting screws a little bit at a time until it no longer wobbles.
Why is my fan making a rubbing noise?
When the blades of a ceiling fan rub against the housing of the fan, this is known as a rubbing noise. It is both annoying and potentially harmful to the operation of your ceiling fan. Besides being annoying, there are some serious safety risks involved with having this problem. If you find that your ceiling fan is making a rubbing noise, there are several things that you can do to correct it.

First, check if the screws are loose on your fan blades or housing. Tighten any screws that may be loose so your fan does not continue to make noise when it is turned off or when you use it.

Second, check that the screws are all connected to the blades or housing properly. If they are not, replace the screws that you removed and re-install the fan blades or housing properly. It is a good idea to have a fan installer come and look at your ceiling fan and make sure everything is installed properly so you do not have any more problems subsequent to having your ceiling fan serviced.

Third, clean the life-line (the wire attached from your fan motor to the blade) in between your blades on both ends to make sure there are no dirt, dust, oil or lint attached unto it; or it may cause noise when turning on/off and after long run.

Many ceiling fans come with a remote control. The remote usually has a switch that will allow the noise to be muted and a dimmer for the light. If the fan is mounted on the wall, you may use a line-dimmer box instead of using a switch on the fan.

In addition, there are various ways to reduce noise:

The blades of ceiling fans should be replaced if they have become damaged or corroded and pitted so that they do not operate properly anymore. In addition, it is also wise to clean your fan blades often since dust accumulates inside and causes rust which may damage your motor if not kept in check.

High-wind safety is a big issue. Many fans are labeled by their manufacturers as having a wind load of less than or equal to 100 pounds, but the wind loads can become much higher in areas of high winds, high altitude or certain structures such as trees. It is important to make sure that your fan has a suitable rated capacity.

The power requirements of a ceiling fan can be calculated using various methods. One of the common methods is the “rating method” which is based on the formula: “the rated capacity (R) in watts for each fan motor (m) times the voltage (V), divided by 1,000”.
What are the most common reasons a ceiling fan starts making noise?
There are several reasons for this to happen to your ceiling fan:

  1. “The problem could be that the fan is old and the bearings are rusted and/or in need of lubrication.”
  2. “Dirt, dust, lint, oil or corrosion may have built up on parts causing loud noises.”
  3. “The motor wiring connections can become loose over time causing a whining sound.”
  4. “It could also simply be a bad bearing that needs to be replaced.”
  5. “If someone hacks up a blade with their spurs the noise will not go away until you replace the blade.”
  6. “The noise could be caused by the blades rubbing together. It is most noticeable when the fan is off.”

Ceiling Fan Safety Tips

  1. “Fans are not toys! Be sure that all fans are in good working order before each use and cleaned regularly.”
  2. “Keep fans, particularly for children’s bedrooms, at least 10 feet from any window or air duct to avoid injury from broken glass should a ceiling fan blade come loose and become airborne.”
  3. “Make certain that your fan has all of its parts and is in good working order; including necessary guards and safety devices that have been designated for protection from injury by the manufacturer of your particular model ceiling fan.”
  4. “Always check the fan’s rating label to make sure it is the proper size for your room. The blades should be at least seven feet from the floor. Ceiling fans that are installed in bedrooms should have blades no closer than a foot from a bed.”
  5. “Always install your ceiling fan with the tip of the blades pointed down to avoid any unnecessary injuries.”
  6. “When putting your ceiling fan away or storing it after each use, ALWAYS remember to unplug or turn off power from any electrical outlet before you move or carry a ceiling fan!”
  7. “During installation, be sure that all wires are properly attached; including any ground wire (if necessary).”
  8. “When mounting your ceiling fan, be sure to use the screws that are supplied with the installation kit.”
  9. “If your ceiling fan has a remote control switch, do not put it up higher than 4 feet from the ceiling or the switch may fail and could overheat.”
  10. “If you install a dimmer on your ceiling fan, DO NOT use a slide dimmer!”
  11. “When plugging in a ceiling fan, do not use an extension cord; it should be plugged directly into an electrical outlet.”
    Conclusion
    Most ceiling fans are used for a long time without any problem. However, over time, oil may build on the motor shaft and cause unwanted noise. When this happens, the oil should be cleaned off with solvent or lubricant.

If this does not eliminate the problem, you can rub a little paraffin wax on the shaft to prevent additional occurrences of noise. One other possibility is that there is some foreign object lodged between the fan blades and/or casing which is causing the rubbing sound; if so, remove it and put a drop or two of motor oil in each bearing hole to keep them operating smoothly. If this does not work, you will need to replace the fan blades or motor.

In addition, many people dispute the effectiveness of cleaning the life wire in between your blades. The theory is that a buildup of lint or dust that is attached to this wire can cause vibration or noise when turning on/off and after long run. Many professionals agree that it is best not to clean this life wire since it could also have a negative effect on the vibrations created by your ceiling fan for smooth operation.