air conditioner blowing weakly

Why is the air conditioner blowing weakly?

A year or two passed after the purchase and installation of the air conditioner, but suddenly it began to blow with less intensity. You bring your hand to the device and notice only a barely perceptible flow of air. In this article, we will briefly explain why the air conditioner does not blow, and what can be done about it.

What is the reason?

So, you are convinced that the device works, but not efficiently enough.

The main reasons:

  • total contamination of the split system;

  • leakage of the refrigerating agent;

  • a breakdown or malfunction of one of the internal components of the air conditioner.

Let’s take a closer look at each of the reasons.

Contamination of the split system

maintenance of the indoor air conditioner unit

An air conditioner is a technically complex device. In order to maintain stable operation of the device, it must be regularly serviced. Maintenance is only possible for a specialist, but you can regularly engage in partial cleaning of the air conditioner.

What for? Contamination of the split system is one of the most common causes of problems in the operation of the air conditioner. Yes, it is dirt that can not only reduce the efficiency of the device, but also completely disable it.

During operation, dust, insects, poplar fluff, etc. get into the air conditioner through the ventilation holes. They settle on the heat exchanger, fan blades, pollute filters and other important components of the split system.

Both the outdoor and indoor units are clogged with dirt. On your own, you can only clean the indoor unit, later in the article we will tell you how to do this. But the cleaning of the outdoor unit should be entrusted to a professional. Especially if it is installed on a high floor.

In addition to the block, the drainage pipe and the drainage tray are also polluted. They also need to be cleaned.

Refrigerant leak

The second most popular reason is the leakage of freon. At home, you will not be able to independently

 determine whether there is a leak, so we recommend calling the master from the service center. He must diagnose the system, detect the leak, eliminate it and refuel the device.

Failure of air conditioner components

The main mistakes of McQuay air conditioners

The split system is not called a system for nothing. The air conditioner consists of many parts, they are interconnected and the stable operation of the device depends on each of them. If any important part fails, the air conditioner will stop working normally.

Most often, the device stops working effectively if the fan, compressor, temperature sensor or pressure sensor, four-way valve, etc. are faulty.

Without skills, experience and tools, you will not be able to solve this problem at home. We recommend that you contact the wizard for help. Usually in this case, the master removes the faulty part and installs a new one in its place. But before that, it is necessary to conduct a full diagnosis, to identify the true cause of the air conditioner malfunction.

Fixing the problem with our own hands

air conditioner cleaning products

So, now you know that at home it is impossible to eliminate the leakage of freon or replace any part. This requires not only tools, but also experience, as well as appropriate skills. It is better to entrust these works to a professional.

But you can clean the device. If you live in an apartment building and not on the first floor, clean the indoor unit.

Instructions for cleaning the indoor unit of the air conditioner:

  1. Unplug the machine from the wall outlet;

  2. Remove the decorative cover;

  3. Remove the strainer;

  4. Vacuum the filter and the inside of the unit using a nozzle with a narrow nozzle;

  5. Rinse the filter under running water. Use a soft sponge or brush, as well as an air conditioner detergent, to clean the filter from dirt;

  6. Use the same tools to clean the internal components of the unit. Be careful not to make too much effort when trying to wipe off the contamination;

  7. Dry the unit and filter naturally. Do not use a hair dryer to dry;

  8. Insert the filter into place, close the decorative cover.

If the outdoor unit is located at a height of no more than 2 meters from the ground, you can also clean it.

If the outdoor unit is installed high, it is not necessary to clean it. It can be dangerous for your life. Entrust the task to a professional master. It is better to pay a little money for the service and keep your health, than to save money and then regret this decision.


Now you know what to do if your device is blowing weakly. Try cleaning the indoor unit. If this does not help, call the wizard. He will diagnose, identify the cause of the failure and fix it. We wish you good luck!

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