A/C blower blows weak
A/C blower blows weak is there a filter 2014 Dodge 2500 diesel
My car has an automatic transmission.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
It will depend on if your vehicle was equipped with one or not. You will need to remove your glove box for access. Remove the glove box’s right side cable clip and push in on the left top to release the glove box. It should drop down and you can remove it from there. Now look and to the right, behind the glove box and above the blower, and you will see a plastic cover about 2 inches wide and 10 inches long. This cover is removable and the filter is slid inside, behind the cover.
If you look at the plastic cover and it is not cut out and cannot be removed, then you do not have a filter and you have a clogged evaporator. You may have to have the evaporator removed and cleaned out.
The good news is you can buy a filter kit that cuts the outline of the filter cover out. Then a filter can be put in with the cover installed to keep evaporator clean in the future.
If you’d like some assistance with this, contact YourMechanic, as a certified professional can come diagnose the issue with your A/C and fix it accordingly.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
Lots of things can cause your blower to have trouble, especially if it gets too dirty. A fan clogged by dirt, a stuck wheel, broken motor, or a loose fan belt are all common problems that reduce the amount of airflow you feel coming from your vents.
Nine times out of 10, weak airflow is caused by a clogged up cabin air filter. Over time, this filter catches all dirt and debris, which can build up and slow or stop the flow of air. It`s typically located under the dash on the passenger side or inside the glove box and should be cleaned or replaced regularly.
Weak Airflow from the Vents
There are a number of possible reasons why this is happening, including dirt and dust buildup, bad capacitor, and an aging motor. If your blower motor is dirty or has a bad capacitor, you can call in an HVAC technician to fix the problem.
If your air handler is running but not blowing air, there are two likely scenarios; either a broken AC blower belt or an issue with the motor itself. If the air handler is humming or buzzing, but not making the mechanical sounds of a motor running, you`re most likely talking about an issue with the motor itself.
Change of fan location to increase blower efficiency
Relocating your blower to reduce its length of runs and straightening bends can help you reduce energy consumption by 5 to 30 percent.
Other possible causes of low air volume (if the fan isn`t the culprit) is that the cabin air filter is clogged with dirt and debris, restricting the amount of fresh air going into the air-conditioning or HVAC system. It is also possible that debris, such as a plastic bag or wrapper, is blocking the flow of air.
To test a blower motor with a multimeter, first set the multimeter to the “resistance” or “ohms” setting. Then, touch the probes of the multimeter to the terminals on the blower motor. If the resistance reading is infinite, that means there is an open circuit and the blower motor is defective.
Typically, the compressor sits outside and moves the refrigerant through coils. The compressor also transfers energy to the refrigerant, which allows it to change phases and cool down the air. Without a compressor, the refrigerant in your HVAC system won`t be able to pull heat from the air and cool your home.
If the compressor is working, but the fan won`t turn, then the problem is most likely with the motor and/or capacitor. When an AC fan fails to spin and no audible indications of compressor activity are detected, it is usually due to a lack of power or a malfunctioning compressor contactor.
In general, the larger and more powerful a leaf blower`s motor or engine, the higher both the blower`s CFM and MPH ratings will be. These ratings are also influenced by the impeller, which is the fan-like part inside the blower that creates the airflow.
Many factors influence the efficiency of a fan. These include motor efficiency, blade speed, housing design, clearance between the fan blades and fan housing, and blade shape. However, even the most efficient fan will not perform satisfactorily if it is not kept clean and properly serviced.
Depending on its intended use, a cordless leaf blower with a CFM between 400-700 should be powerful enough to greatly ease your fall yard chores. If you have a small yard with little debris, choose one with 200-400 CFM.
If the capacitor is bad, the blower motor may run slowly or inconsistently, or overheat easily. If you notice that your blower motor works strangely or short cycles, make sure to contact professionals to inspect your capacitor.
The blower is supposed to last the entire lifetime of your car. However, situations vary and some climates require the fan to be used too often. Many car owners find themselves having to replace the blower after five years. The quality of the motor used to power the blower matters.
Blowers operate at moderate pressure, with an air pressure ratio of 1:1.1 to 1:1.2, and fans move large volumes of air with little to no change in air pressure.
If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.
The average cost to replace the blower motor resistor at a repair shop is between $44 and $55 in parts and $70 in labor costs, for a total cost of around $114 to $125. On the other hand, you can easily fix the blower motor resistor at home in about an hour (even if you`re a beginner) and for around $70.
When the AC runs without the fan circulating air, it can eventually lead to the evaporator coils freezing over. Once this happens, your air conditioning unit is at risk of more serious damage. Turn the AC off and call an HVAC technician.
The fundamental difference between a blower and a compressor is that a compressor moves gas or air from one point to another by leveraging pressure. Blowers distribute air and generate airflow by acting as a fan. There are many different types of compressors and blowers.
Problems like a fan clogged with dirt, a dead motor, a loose fan belt or a stuck wheel can all cause your blower to not work properly. These problems can keep the blower fan from blowing enough air out of your vents to keep you cool. Your evaporator coil needs air to blow over it to complete your AC`s cooling process.
Problems like a fan clogged with dirt, a dead motor, a loose fan belt or a stuck wheel can all cause your blower to not work properly. These problems can keep the blower fan from blowing enough air out of your vents to keep you cool. Your evaporator coil needs air to blow over it to complete your AC`s cooling process.
In short, common issues that can cause an air conditioning unit fan to stop spinning are electrical issues, problems with the capacitor, contactor issues, a burnt out air conditioner motor, a broken fan belt, or clogged air filter.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
A/C Constantly Blows On Feet When A/C Is Off.
ANSWER : Hello there. It’s difficult for us to give you an accurate assessment on what might be causing your AC issues on the Dodge Nitro since we’re not sure what you may have removed in order to replace the blower motor. It’s possible that you have a minor electrical glitch which is causing the floor vent switch to stay open or perhaps it’s mechanical. The only way for us to help you is have one of our mobile mechanics come to your location and complete an AC is not working inspection.
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Car A/C won’t stop blowing even with car turned off, can I unplug blower motor resistor ?
ANSWER : Yes, you can disconnect the resistor or the blower motor to stop the power drain. You can do this until you can get it fixed anyway.
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Blower Motor only working on highest speed.
ANSWER : You mentioned that you started to smell something. This may be a sign that the blower controller or the resistor was burnt out when it was hooked up wrong. You should try replacing the blower controlling resistor that you hooked up wrong. But like you mentioned, it could also be a fuse problem that has shorted. If you would like to have this looked at, have a certified technician, like one from YourMechanic inspect the wiring and determine what should be done.
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My heat and air turns on without a problem but does not blow very hard (heat blows harder than air). Rattling noise.
ANSWER : The heater and the air conditioner both use the same blower motor. However, Nissan does have two separate fuses for the same unit. One of them can be blown. There are also resistors in the system that can fail. There are several electrical tests that can be done, but depending on the condition, it may be more practice to change the entire unit. Due to the age of your vehicle, and the Juke’s history of blower motor issues, it’s very likely a simple fuse issue. These can (for the most part) be visually inspected, and are cheap.
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air conditioner not blowing well
ANSWER : This vehicle is equipped with a cabin air filter that filters the air coming into passenger compartment. The filter blocks debris, and in time restricts the air flow. It requires replacement at least once a year. Another possibly could be a fault with your mode doors. These doors direct the air flow to the floor, vent, and windshield. This can create the condition you are talking about and would be a great starting point. I recommend having this looked at by a mechanic. To have this checked, a certified technician, such as one from YourMechanic, can come to your home or office to diagnose your AC system and pinpoint the correct repairs that should be made.
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A/C blower blows weak
ANSWER : It will depend on if your vehicle was equipped with one or not. You will need to remove your glove box for access. Remove the glove box’s right side cable clip and push in on the left top to release the glove box. It should drop down and you can remove it from there. Now look and to the right, behind the glove box and above the blower, and you will see a plastic cover about 2 inches wide and 10 inches long. This cover is removable and the filter is slid inside, behind the cover.
If you look at the plastic cover and it is not cut out and cannot be removed, then you do not have a filter and you have a clogged evaporator. You may have to have the evaporator removed and cleaned out.
The good news is you can buy a filter kit that cuts the outline of the filter cover out. Then a filter can be put in with the cover installed to keep evaporator clean in the future.
If you’d like some assistance with this, contact YourMechanic, as a certified professional can come diagnose the issue with your A/C and fix it accordingly.
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everytime I turn my car on the ac starts to blow air even if I switch it off. it won’t blow cold air or heat.
ANSWER : Hi there. Based on your question and input, it looks like your AC control switches are damaged, causing the vents to activate even if the switch is not activated. This is sometimes an electrical problem, as it could be triggered by a damaged electrical relay. You might want to have a professional mechanic complete an AC is not working inspection, so they can determine what is causing this issue you’re experiencing and recommend the right repair.
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the air blower to select where the air is blowing isnt working the only thing till do is blow on the dash.
ANSWER : Hello, thank you for writing in. There may be one of several things happening. There are "blend doors" located in the duct work that control where the air flows. If the servo-motors that control these doors fail, or the switch fails to control them, you will experience these and similar symptoms. These can both be electrically tested. When it comes to accessing the blend door motors, it can be time consuming and tricky. Use a repair manual or step by step guide if attempting this repair from home. If you need assistance with this electrical testing, contact our service department to schedule an appointment.
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