Buzz
Your home air conditioner is operating normally, but suddenly it becomes less cool or stops cooling, even though it has been on for a long time? Address this issue promptly; otherwise, the machine may suffer severe damage, leading to increased repair costs.
1. Common Reasons for Air Conditioners Losing Coolness and Consuming More Electricity
Air conditioning in your home is running normally, but suddenly it becomes less cool or stops cooling, even though it has been on for a long time? When the air conditioner faces this situation, you should address it early; otherwise, the machine may suffer severe damage, and repair costs will increase.
Here are the reasons why an air conditioner may lose coolness and ways to fix it.
1. Air Conditioner Not Cooling Due to Excessive Dirt
If the air conditioner operates for a long time without maintenance, dust will accumulate, affecting the cooling air output. This is also a common cause, making the air conditioner work at full capacity, but the air in the room remains very hot.
Additionally, a dirty air conditioner makes it consume more electricity than usual.
You can clean the air conditioner yourself by:
Cleaning the condenser: Use a low-pressure pump to spray water in a jet form into the slots of the condenser to clean off dust and stuck insects.
Cleaning the evaporator: Use a pressure pump to directly spray water onto the evaporator, spray slowly on the evaporator and the evaporator fan until it appears clean; Clean the air filter and then shake it dry, reinstall it.
2. Air Conditioner Lacking or Out of Gas
Indications of air conditioning lacking or out of gas include reduced cooling or no coldness; the operating current is lower than the rated current on the machine; the gas suction pressure to the compressor is lower than the normal working pressure (usually from 65 - 75 psi). The high-pressure side pressure is also lower than normal. In particular, for some types of air conditioners, the machine will automatically shut off after about 5 - 10 minutes and display an error on the evaporator when it does not have enough gas to operate. The air conditioner loses gas due to leaks in the pipes, leaks at joints, coils, or due to prolonged use without maintenance. To remedy this situation, a professional air conditioner repairman with specialized pipe testing equipment is required to ensure that the pipes are securely closed after repair and to recharge the additional air conditioner gas.
When the block (compressor) does not run, the temperature air conditioner will not be cold.
The causes of this situation are: Loss of power supply to the compressor due to holes in the control board, the contactor does not close, or open circuit. Jumping thermic to protect the compressor is usually due to a damaged capacitor, weak or damaged condenser fan, or the compressor motor does not rotate. Burning one of the coils inside the motor. In this situation, you need to call an air conditioner repairman to address the issue.
A faulty capacitor and circuit board will turn the air conditioner into a regular fan. Common causes: The air conditioner operates overloaded; the air conditioner maintains a temperature too low (below 20 degrees Celsius) continuously for too long. Remedy: Contact the maintenance center to replace the capacitor, circuit board; to minimize capacitor damage, only maintain the air conditioner at a temperature range of 25 - 27 degrees Celsius. Regularly clean the circuit board to timely prevent insects from nesting, causing circuit board fires. When cleaning, turn off the power to ensure safety for users.
The evaporator casing accumulates dew, the wind blows out in the form of mist or water droplets, and the evaporator freezes.
The evaporator freezes due to the evaporator fan not rotating or rotating slowly. You should repair the fan immediately, as it can lead to compressor damage. The evaporator blows water droplets because the evaporator is too dirty. In some cases, it is due to manufacturing defects, where these evaporators have some oversized gaps, so the suction fan always blows water droplets out. Remedy: Clean the evaporator regularly to prevent freezing and water leakage.
The hottest wall is where the sun shines directly, raising the wall temperature. Many people install air conditioners in this position, which is a mistake. When you install the air conditioner in the hottest wall, before cooling the air in the room, the air conditioner must cool the wall first - this both consumes electricity and is not very effective. Therefore, choose cooler wall corners for installation to quickly cool the room and achieve the highest efficiency. Overloaded electricity: In the hot summer, the increased demand for electricity in many areas often causes overloading. Weak, unstable power sources make the compressor heat up, reduce cooling ability, or stop working. Therefore, on hot days, use an additional stabilizer to stabilize the power supply for the air conditioner, ensuring the machine always operates well to promptly meet the cooling needs of the family.
