A mini-split air conditioner is supposed to keep you comfortable when the temperature outside is unbearable. You would expect it to work perfectly fine every time you turn it on but sometimes, it will simply refuse to do so. But there is no need to panic. Here are a few ductless air conditioner troubleshooting tips that will help you kickstart the process. Let’s discuss.

Malfunctioning Thermostat

A malfunctioning thermostat is a common issue amongst older units but rare is new ones. A thermostat could malfunction due to several reasons. To begin with, it could be that the batteries need replacement. So, try replacing the batteries to see if the issue is resolved.

If it doesn’t you might need to calibrate the thermostat for which you will be needing an expert. And even if that does not work out, you should try cleaning the thermostat as dirt and dust might prevent proper functioning.

Keep in mind that the thermostat communicates directly with the control board. That said, if it is malfunctioning you will observe your air conditioner blowing hot air when instead it should be blowing cool air.

Low On Refrigerant

One of the reasons your ductless AC might not be working is low refrigerant. Air conditioners produce cool and warm air using a certain refrigerant level. This refrigerant could leak if the air conditioner is old and has cracks or damage etc.

Moreover, if you have recently installed a new unit, it could be due to improper installation. Plus, an inexperienced individual performing maintenance could also cause damage or leakage.

With a low refrigerant level, you will observe that your air conditioner is constantly tripping. That is the compressor struggling to maintain its function. As a result, the compressor might overheat and give up as well. Fortunately, identifying such an issue is relatively easy.

All you need to do is observe abnormal behavior of your air conditioner. However, you will need to contact a technician to refill the refrigerant.

Clogged Air Filters

Air filters are one of the most important components of an air conditioner but are often left ignored. These trap contaminants from the air before the unit blows the air inside the house. As a result, the air filters are supposed to get dirty with time.

Layers of dust and dirt accumulation clog the air filters causing the air conditioner to struggle. To fix the issue, you should try cleaning the air filters. As a general rule of thumb, you should inspect and clean the air filters at least once a month depending on the usage.

Furthermore, it might also be that you need to change the air filters if they are damaged. Then again, this is a relatively common case in older units.

The Capacitor Has Died

Capacitor issues are fairly common in both old and new units. In the case of new ones, you might be able to get a replacement if the air conditioner is still under warranty. If the run capacitor is faulty, you will most likely observe your air conditioner constantly turning on and off.

It could also be that you hear clicking sounds from the outdoor unit. The reasons behind a faulty capacitor could be many. As a first, heat and overheating can significantly impact the capacitor’s health. Additionally, power outages and fluctuations could also cause the same.

Luckily, a faulty capacitor isn’t an expensive repair. However, you should not try replacing it yourself. Instead, contact a professional.

Dormancy Issue

Believe it or not, dormancy has caused a lot of issues to perfectly working air conditioners. If you live in a region where air conditioners are less likely to be used in the winter season, it could be that the unit fails to turn on after a few months.

The reason is that dirt, dust and debris accumulation on the components such as the fans might block the functioning. Moreover, rats, birds and other intruders may take up the accommodation also leading to damages.

To prevent such issues, you should cover the air conditioner when not in use. This will prevent unnecessary dirt and dust from accumulating inside the unit when not in use for a long time.

Uncleaned Condenser

The outdoor unit of your air conditioner contains the condenser. It is responsible for dissipating heat collected by the indoor unit to the external environment. As the outdoor unit is installed in open air, it is meant to become dirty with time. On top of that, it also has to bear the brunt of extreme weather conditions.

So, do not be surprised if you find dead shrubs, branches or leaves stuck inside the unit. If the condenser has not been cleaned for a long time, it will struggle to dissipate heat. As a result, it will overheat. So, before you call a technician, you should try cleaning the condenser yourself.

But keep in mind that inspecting and maintaining the outdoor unit is as important as the indoor unit. And it should be placed away from the plantation to avoid damages.

Tripped Circuit Breaker

If your ductless air conditioner simply fails to turn on, it must have tripped the circuit breaker. The circuit breaker acts as a safety device turning off your air conditioner due to severe power fluctuations. As a result, your air conditioner avoids expensive repairs and replacements.

So, check the circuit breaker and switch it on. Also, check for any blown fuses as well. And, if your air conditioner is constantly tripping the circuit breaker, you will need to call in an AC repair service Stony Brook.

Faulty Power Cord Or Outlet

Sometimes, the problem is not as complicated as it seems. It is just that you are assuming the worst. So, examine the basics first. For instance, it could be that your power cord or outlet is faulty. Power cords can become frayed and wear down with time.

Unplug the power cord and examine it for cracks and damage. If the power cord seems fine, check the power outlet. Try plugging in some other electronic appliance. If it works, it means there is a problem with your air conditioner but if it doesn’t you will need to change the power outlet.

AC Is Not The Right Size

Finally, it comes down to the most common mistake made by homeowners. When buying an air conditioner, it is important to pick the right size based on the area where it needs to be installed. For instance, if you intend to install the air conditioner in your bedroom, you need to measure the entire space.

The reason is that a wrong size of an air conditioner will not be a perfect fit for your needs and preferences. While a smaller unit will find it difficult to achieve the desired temperature and will utilize more electricity, a comparatively larger one will constantly trip overburdening the unit.

Since air conditioners do not come cheap, it would be wise to talk to a friend or an expert. Better be safe than sorry.

Conclusion

In the end, your ductless AC not working can be frustrating. However, you can make it easy for yourself by following the tips mentioned above. Make sure that you regularly inspect and maintain the unit and be on the lookout for unusual activity and consult HVAC repair services Huntington if there is an issue. This way, you will be able to prevent major problems down the road.