When the peak of summer is approaching, the temperature in a car can rise to 20 degrees in just the first 10 minutes, bringing discomfort and a high possibility of heatstroke for any driver or passenger.
Therefore, air conditioning is the number one savior in providing the ideal cool temperature during the journey.
However, the problem comes when you discover there’s no air coming out of vents in car. This malfunction poses a huge health hazard to the occupants and makes for a worse travel experience.
Through this article, let’s look at some of the common reasons and how to deal with this problem most effectively.
Why Is There No Air Coming Out Of Vents In Car?
The car is composed of a closed iron box, while the vents play the role of air circulation and temperature regulation inside the vehicle.
But unfortunately, air won’t come out of vents in car for various reasons below.
Blown Fuse
The fuse has the function of maintaining the stability of the current and protecting it from short circuits and overload.
When the ventilation system detects a damaged fuse, it will not operate until you have completed the installation of a new fuse replacement.
In case of an explosion, it is very likely that the wiring has a serious problem and needs to be checked by a professional mechanic.
Ignoring our warning and installing a new fuse will cause it to suffer the same fate quickly.
For the rest of the damage, consider installing it yourself at home due to the product’s budget-friendly cost and ease of installation.
Bad Electrical Relay
The relay is responsible for controlling the direction of the current flow through the devices built into your vehicle.
In terms of operating mechanism, it uses a small amount of electricity to control devices that require larger currents.
When the relay fails, the ventilation system will not receive any power from the battery or other power supply, leading to no air blowing from car vents.
Blower Motor Failure
The blower motor is the driving force that pushes air through the vents and into your cabin.
Like any other blower engine, it is susceptible to wear and tear over time, clogging by foreign objects, and even failure and fire due to electrical problems.
When you turn on the air conditioner at full power but only find air barely coming out of vents in car, you should go to a repair center and have the blower system checked first.
Depending on the severity, the mechanics here will repair or replace a new product for your vehicle.
Clogged Air Intake
Any car will provide a fresh air intake window for outside air intake and an intake window for air conditioning inside the vehicle.
Once the air conditioner does not receive air from these inlets, air won’t blow out of vents in car.
The causes of these louvers often include debris, dust, insects, and fallen leaves.
Since these parts are prone to problems, it is best to have them checked and cleaned periodically with the help of a local repair center.
Broken Hose
The ventilation duct acts as the air conduit of the ventilation duct system to the driver. If one of these hoses is damaged, worn, or loose, the air will escape through the opening instead of out into the cabin.
If a foreign object causes a blockage, the air will be pushed back into the ventilation system, damaging the system and the occupant’s experience.
Bad Switch
Bad switches are not a common cause, so it is often difficult for drivers to identify the source of the problem.
When the switch on the control panel is faulty (broken or stuck), it will not transmit the operation notification signal to the air conditioner, resulting in the air conditioner not working and no air blowing from vents in car.
If your vehicle is experiencing this problem, you must have your mechanic replace the switch with a new one.
Bad Air Filter
A clogged air filter (due to dirt or small objects) will significantly block airflow from the air conditioner.
The more severe the blockage, the less air is inside the ventilation system. Therefore, check this unit periodically to detect and resolve the bottleneck.
How To Fix Car Air Vents That Aren’t Working?
Regular car cleaning will help clean and promptly remove objects on the outside of the vents. However, it is not an effective solution when the problem comes from within the vent system.
Discover the 5 most effective cleaning solutions we have compiled below and choose the best solution for your trouble!
Method 1: Using A Small Paint Brush
A small paintbrush is an inexpensive dirt-cleaning alternative to a dedicated vent-cleaning brush.
Riders can find it at any craft or department store in the neighborhood at an extremely budget-friendly price.
With its ideal shape and size, it can weave through gaps and into the interior to effectively deal with obstructions accessible from the cabin, such as paper debris or dust.
This soft bristle product sweeps car air vents cleanly without the risk of scratches or any damage to interior components.
You can use small paint brushes for the parts near the car’s cabin, especially the little foam brushes.
Please clean the slats in your vents as deeply as possible, and remove everything stuck in the inside space.
It is best to prepare more than one product during the cleaning process to achieve the best effect. Use a few for cleaning, while the rest are for drying the vents.
Method 2: Using A Cleaning Solution
Combine warm water and white vinegar in a ratio of 1:1, add a teaspoon of bamboo extract, and you have successfully created a very useful cleaning solution! In case of a shortage of white vinegar, replace it with lemon-scented cleaning vinegar.
This solution deep cleans and helps remove the musty or burning oil smell coming from the AC vent or the air filter. Spray it on the foam brush, then scrub all the areas you want to clean on the car.
For deeper cleaning, drivers can consider cleaning solution products currently on the market.
Just go to an auto repair shop, and you will receive advice on the cleaning product that is most useful for your situation.
Method 3: Using A Steam Cleaner
Dirt in the vent that is not cleaned completely will tend to stick and accumulate more and more.
If the paintbrush and cleaning solution do not disappear completely, you will need a more professional solution- a steam cleaner!
With a powerful operating mechanism, the product can easily remove stubborn dirt, mold, and oil and disinfect the vent system.
Slowly pass the product nozzle through each vent rod until all stubborn stains are removed.
Then, turn on the AC fan at full power and use a microfiber cloth to remove any remaining wet spots from the cleaning process.
Method 4: Cleaning The Cabin Air Filter
Depending on the vehicle model, the position of the cabin air filter will be different, such as under the dashboard to the right of the driver’s seat or under the hood.
Before inspecting this part, read the instruction manual carefully to determine the exact location of this product.
Normally, only when the air filter’s blockage has become irreparable the air can’t move to the car vents. If testing shows this, it’s best to replace the filter with a brand-new one as soon as possible.
Method 5: Replacing With A New Compressed Air Cleaner
Compressed air cleaners are an excellent solution for deep cleaning, deodorizing, and killing bacteria growth inside ventilation ducts.
Just spray this product deep inside the air vents and inlets and wait for the results!
How Much Does It Cost To Fix A Car’s AC?
Depending on the severity of the damage, the cost of a car’s AC will vary. For instance, a rider must pay around $100-$250 for a damaged blower motor repair.
Since rates vary from place to place, contact your local repair center for the most budget-friendly option.
In the event of a faulty fuse, you only need about $10 to buy a new one and replace it at home. Before all, please research the fuse location on your vehicle model via google or the user manual.
When the problem comes from the cabin air filter, you’ll need to pay $15 to $50 to buy a new replacement. You can replace yourself at home or spend an extra $40-50 to rent a mechanic.
FAQS
What Happens When Air Vents Are Blocked?
Air will not stop pushing into the vent hole even if the passage is blocked, leading to increased pressure and even damage to system components.
In addition, stains and dirt that accumulate for a long time also promote mold growth, causing unpleasant odors.
In terms of driving experience, it causes a sense of mystery and stuffiness for anyone sitting inside. Moving into extremely hot weather will increase the likelihood of heatstroke, dizziness, or even fainting.
How Often Should I Unclog Car Air Vents?
Typically, you’ll need to clean the vents by unclogging them at least every two to three months.
Maintenance of this system more frequently than the recommended cycle is always welcome, as it will help keep the air circulation system in good working order.
If the odor does not disappear after cleaning, it is best to take your vehicle to a repair center for professional care.
Can I Use A Vacuum Cleaner To Unclog Car Air Vents?
It may sound odd, but consider using a vacuum cleaner for this unclogging task! But remember, the key to getting the best cleaning results is combining a vacuum with a small brush.
Some Last Words
Our article gives you a collection of no air coming out of vents in car causes and solutions.
If the problem is not too serious, you can completely proceed to solve the blockage at home to save money and time.
Getting useful information on how to solve a problem related to the ventilation system will help in a thorough remedy.
But always remember, the key to a comfortable hot-weather driving experience is the regular overall maintenance of your vehicle and keeping the AC vents in ideal temperature!
See you in the next articles!