Heating and ventilation systems play an essential role, which is why they are required in a house, especially during summer. However, if your AC Blowing 70 Degree Air, it is not ideal for cooling your environment.
It is thus essential to know the possible cause of this problem so we can fix it as soon as possible. This article seeks to explain various causes of an AC blowing air at seventy degrees and provide distinct approaches that you can follow to have the unit regain optimal performance.
Normal AC Cooling Performance
Usually, standard air conditioners condition the air in a manner that cools it between 15 and 20 degrees Celsius to the air taken in by the AC unit. This temperature differential, or what is commonly referred to as the delta T, is a standard measurement of AC efficiency. For example, when the air is in the intake way of an AC system, it seems to be 85 degrees Fahrenheit, then the air must flow out and be in the temperature range of 65 and 70 degrees Fahrenheit.
If the AC is Not Blowing Cool Air or AC Blowing 70 Degree Air while the temperature indoors is higher, this is a crucial sign that the system is not cooling as it is supposed to. This inefficiency could be due to several reasons, depending on whether it is fundamental problems like blocked filters or more complicated issues like refrigerant leakage.
Also read: AC not Cooling Below 75.
Common Causes of an AC Blowing 70-Degree Air
1.Dirty or Clogged Air Filters
An air filter helps filter out different kinds of dust, dirt, and other particles that may surround the air in your house. Often, it may accumulate much dust, which gradually accumulates on the filters and hinders the efficiency of air conditioning. This harms free-blowing air since less warm air flows across the evaporator coils to be cooled, and warmed air is returned to your area.
To solve this, one can consider maintenance tips. In this case, the user can inspect and replace the filters on their AC units monthly. For example, if a dirty or clogged look characterizes a filter, it is time to change it. It is also essential to clean the air filters of the Air Conditioner at least once every 1-3 months to allow proper airflow and cooling capability.
2.Low Refrigerant Levels
Refrigerant is a fluid that heats an indoor environment and cools it with a view of releasing the heat in an outdoor environment. Sometimes, the refrigerant levels in the system take time to build up, resulting in the breakdown of the heat exchange and giving what is referred to as low cooling or producing air with temperatures around 70 degrees. To solve this professional assessment is vital. Ideally, where there is a likelihood that the refrigerant levels are low, this is the right time to contact a certified HVAC technician. It can identify the leakage points and then fill the pool to an optimal level recommended by the manufacturing firms.
3.Dirty or Blocked Evaporator Coils
To aid in cooling, evaporator coils are designed to absorb heat from inside your home due to their unique design. A wall-mounted air conditioner has several coils inside it, and these coils cool the air by absorbing heat from it and then releasing the heat to the outside; when these coils are dirty or fouled in any way, they cannot absorb heat, the system circulates warm air. To solve this, it is necessary for preventive maintenance: The evaporator coils must be examined and cleaned often; an expert should do this. Cleaning the coils makes sure that there is effective heat absorption and that the system cools properly.
4.Faulty Thermostat Settings
These settings may occur in different ways. One is when the thermostat is set inaccurately, hence the AC blowing warm air. If the thermostat is placed at a higher temperature or has some issue, it does not call the AC to cool down to the correct setting. One can consider the following options:
- Interreferences: The thermostat should be switched to cool mode and be below the current room temperature.
- Calibration: Due to improper functioning, the thermostat may not be measuring room temperature correctly, and in this case, it has to be calibrated or replaced.
5.Inadequate Airflow Due to Obstructions
Any blockage around the indoor or outdoor units will limit and affect the flow of air, which is not ideal for the system. This is true, especially when the furniture, curtains, and other amenities are close to the vents and air conditioning units. Thus, it is vital to consider adjusting the ventilation settings. It is often essential that they are not obstructed by furniture or curtains, among other items. Do not place any object near the outside unit of the air conditioning system, such as plants or built-up structures that may hinder air circulation.
6.Aging or Improperly Sized AC Unit
This problem is either due to aging or having an improperly sized AC unit in the house; thus, the type of cooling system to be recommended will depend on the size of the house, which will be determined from the floor area of the house to be cooled, that is, the conditioned area. If an A/C is old or too small for your house, it may not be efficient enough to cool the space.
Undersized air conditioners will take time to cool the room; most of the time, it does not even reach the desired temperature. In contrast, an oversized air conditioner cools very fast but does not remove humidity in the room. One must seek the opinion of the expert: Call an HVAC and get them to check whether the AC is suitable for your house or if there is a need to upgrade the unit.
Conclusion
Different circumstances, such as normal functioning, regular checks, mechanical failure, etc, can cause the blow of an air conditioner setting at 70°. You must act on the concerns stated above so that the comfort level in the building is regained and that further damage to the system is prevented.
Key Takeaways:
- Preventive Maintenance: This involves simple things like changing the filter and dusting the coils and unit often to decrease overall problems with the AC system.
- Homeowner Input: For issues like leakage of refrigerant or in cases where one is trying to choose between the right size of a system, it is recommended that one hires a licensed HVAC technician.
- Perception of System Performance: You should constantly monitor the performance of your AC and try to be in a position to notice a change so that you can be in a position to solve the issue correctly.
Now, we can suppose you know the possible cause and fix to an AC blowing 70-degree air. In that case, you can take necessary precautions to control the insides of your home factors and prevent the possibility of damaging your air conditioning system.
Frequently Asked Questions (FAQs)
Why is my AC blowing air that isn’t cold enough?
This is the most common question asked by users, and the answer can be due to the following factors: a dirty filter, low refrigerant charge, or a thermostat problem. These problems can be addressed by maintaining regularity and ensuring the professionals inspect it on time.
How often should I change my AC’s air filter?
It is advised to look at the air filter every month and change it after 1 to 3 months, depending on its usage and the condition of the environment it is subjected to. This way, the air filter is regularly replaced to allow clean air to flow into the car’s interior, in addition to proper cooling.
Can I clean the evaporator coils myself?
Yes and No. It is possible to clean the evaporator coils by yourself, or you may seek the help of a professional HVAC technician. Of course, simple cleaning is possible for homeowners, but deep cleaning requires an experienced HVAC technician to clean it because any wrong action might lead to damage.
How can one determine if the selected AC unit has adequate capacity?
An HVAC professional can do a load calculation to determine the optimum size of the AC required for the specified area, as well as the insulation and the climatic conditions of the place.
What should a person do if he detects that refrigerant has leaked?
In case the refrigerant leaks, there will be signs such as poor cooling or hissing noise, meaning that you should call a licensed HVAC technician to fix the leak and re-charge the system.
