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Frequently Asked Questions
Here you will find answers to some of the most frequently asked questions about heating, air conditioning, ventilation, electrical engineering, and plumbing.
Why doesn't the air conditioner cool?
The air conditioner may not cool for various reasons, including:
1. Lack of electrical power supply to the air conditioner.
2. Depleted batteries in the infrared remote control. Battery replacement is required.
3. Incorrect operating mode selection, or incorrect temperature setting even when the correct mode is chosen. Ensure that the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. Control system freeze. A device restart may be necessary: disconnect the air conditioner from the power supply for a few minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After hearing a beep indicating that the command has been received, there may be a slight delay of a few minutes before cooling begins. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outdoor temperature is low or the distance between the indoor and outdoor units is significant.
1. Lack of electrical power supply to the air conditioner.
2. Depleted batteries in the infrared remote control. Battery replacement is required.
3. Incorrect operating mode selection, or incorrect temperature setting even when the correct mode is chosen. Ensure that the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. Control system freeze. A device restart may be necessary: disconnect the air conditioner from the power supply for a few minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After hearing a beep indicating that the command has been received, there may be a slight delay of a few minutes before cooling begins. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outdoor temperature is low or the distance between the indoor and outdoor units is significant.
The air conditioner won't switch on, what should I do?
The air conditioner may fail to turn on for various reasons, including:
1. Lack of electrical power supply to the air conditioner.
2. Depleted batteries in the infrared remote control. Battery replacement is required.
3. Incorrect operating mode selection, or incorrect temperature setting even when the correct mode is chosen. Ensure that the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. Control system freeze. A device restart may be necessary: disconnect the air conditioner from the power supply for a few minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After hearing a beep indicating that the command has been received, there may be a slight delay of a few minutes before cooling begins. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outdoor temperature is low or the distance between the indoor and outdoor units is significant.
1. Lack of electrical power supply to the air conditioner.
2. Depleted batteries in the infrared remote control. Battery replacement is required.
3. Incorrect operating mode selection, or incorrect temperature setting even when the correct mode is chosen. Ensure that the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. Control system freeze. A device restart may be necessary: disconnect the air conditioner from the power supply for a few minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After hearing a beep indicating that the command has been received, there may be a slight delay of a few minutes before cooling begins. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outdoor temperature is low or the distance between the indoor and outdoor units is significant.
The air conditioner is plugged in but has stopped responding to the remote control. What could be the problem?
1. The air conditioner may not respond to remote control commands for several reasons, including:
2. No power supply is reaching the air conditioner. The batteries in the infrared remote control are depleted. The batteries need to be replaced.
3. An incorrect mode is selected, or, if the correct mode is selected, the wrong temperature is set. Make sure that if you want the air conditioner to cool, the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. The air conditioner's control system may have frozen. A restart of the device is required: disconnect the air conditioner from the power supply for several minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands instantly. After hearing the confirmation beep, the air conditioner may begin cooling with a slight delay of a few minutes. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outside temperature is low or if the distance between the indoor and outdoor units is considerable.
2. No power supply is reaching the air conditioner. The batteries in the infrared remote control are depleted. The batteries need to be replaced.
3. An incorrect mode is selected, or, if the correct mode is selected, the wrong temperature is set. Make sure that if you want the air conditioner to cool, the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. The air conditioner's control system may have frozen. A restart of the device is required: disconnect the air conditioner from the power supply for several minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands instantly. After hearing the confirmation beep, the air conditioner may begin cooling with a slight delay of a few minutes. If the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outside temperature is low or if the distance between the indoor and outdoor units is considerable.
When the air conditioner is operating, strange noises such as cracking, tapping, and other sounds are heard. Is this normal?
If the air conditioner has a condensate pump installed, it is possible that the float chamber has dried out, especially if the unit has not been operating in cooling mode for a long time. This often happens during the first startup after the winter season and a prolonged equipment downtime. In such cases, service technicians usually fill the pump with water during maintenance. It is recommended to call a specialist for a complete service.
Of course, there may be other reasons, such as foreign objects getting into the fan impeller or bearing wear. In case of such issues, it is best to contact a service company and call a technician for diagnostics and repairs
Of course, there may be other reasons, such as foreign objects getting into the fan impeller or bearing wear. In case of such issues, it is best to contact a service company and call a technician for diagnostics and repairs
Why doesn't the air conditioner heat up?
The air conditioner does not respond to commands instantly. After you hear a confirmation beep, if the heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outside temperature is low or the distance between the indoor and outdoor units is significant. The air conditioner may not turn on for various reasons, including:
1. No power supply is reaching the air conditioner.
2. The batteries in the infrared remote control are depleted. The batteries need to be replaced.
3. An incorrect mode is selected, or, if the correct mode is selected, the wrong temperature is set. Make sure that if you want the air conditioner to cool, the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. The air conditioner's control system may have frozen. A restart of the device is required: disconnect the air conditioner from the power supply for several minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After you hear a beep confirming the command has been received, the air conditioner may begin cooling with a slight delay of a few minutes. If heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outside temperature is low or the distance between the units is significant. If 10–15 minutes pass after selecting the heating mode and the air conditioner still does not heat the room, this may indicate a malfunction. In this case, it is recommended to contact a specialist for diagnostics and repair.
1. No power supply is reaching the air conditioner.
2. The batteries in the infrared remote control are depleted. The batteries need to be replaced.
3. An incorrect mode is selected, or, if the correct mode is selected, the wrong temperature is set. Make sure that if you want the air conditioner to cool, the cooling mode is selected, and the temperature on the remote is set lower than the current room temperature.
4. The air conditioner's control system may have frozen. A restart of the device is required: disconnect the air conditioner from the power supply for several minutes, then reconnect and turn it on.
5. The air conditioner does not respond to commands immediately. After you hear a beep confirming the command has been received, the air conditioner may begin cooling with a slight delay of a few minutes. If heating mode is selected, it may take up to ten minutes for heat to appear, especially if the outside temperature is low or the distance between the units is significant. If 10–15 minutes pass after selecting the heating mode and the air conditioner still does not heat the room, this may indicate a malfunction. In this case, it is recommended to contact a specialist for diagnostics and repair.
The air conditioner is not working, and strange lights are flashing on the display or an error code is shown. What should be done?
Flashing LEDs on the air conditioner's control panel indicate the presence of one or more system faults. Using the error code table, it is possible to identify the issue. However, diagnosing and repairing such faults should be left to service company specialists, as the causes may vary. In this situation, it is recommended to contact a service company for consultation.
The air conditioner is not cooling well. What could be the reason?
Insufficient cooling power of the air conditioner can be caused by various factors. These may include simple issues such as clogged filters in the indoor unit or a dirty condenser in the outdoor unit, as well as an incorrectly set temperature mode. However, the problem could also be more serious, such as a lack or excess of refrigerant, or other system malfunctions.
In such cases, it is recommended to contact a service company for diagnostics and repairs.
In such cases, it is recommended to contact a service company for diagnostics and repairs.
Water is dripping from the air conditioner in cooling mode. Is this normal?
If water starts dripping or leaking from the air conditioner in cooling mode, it is necessary to call service specialists. The most common cause is a blockage in the condensate drainage system, which forms during air conditioner operation, or a malfunction/clog in the drainage pump, if one is installed. Other possible causes include evaporator freezing or other malfunctions not directly related to condensate leakage.
The air conditioner has a foul odour. How can I get rid of the stink from the air conditioner?
After a long period of inactivity, it is recommended to prepare the air conditioner for the new season by carrying out a series of preventive measures, including cleaning and flushing the system using specialized equipment and chemicals. For this work, it is advisable to involve specialists from the Green Mountain HVAC & ELECTRIC service center.
To prevent unpleasant odors caused by improper maintenance, it is recommended to periodically clean the system from dust and other contaminants. The user can perform this task independently using basic tools: a brush, cloth, soap solution, antibacterial agents, and a stream of clean water.
If the drainage system becomes clogged, there is a high likelihood that pathogenic microorganisms have developed. In this case, it is necessary to clean and disinfect the drainage system.
During air conditioner operation, the filters should be periodically replaced or cleaned. The recommended intervals for this procedure can be found in the user manual that comes with the unit.
If you are unable to resolve the issue of unpleasant odors on your own, contact the specialists from the Green Mountain HVAC & ELECTRIC service center.
To prevent unpleasant odors caused by improper maintenance, it is recommended to periodically clean the system from dust and other contaminants. The user can perform this task independently using basic tools: a brush, cloth, soap solution, antibacterial agents, and a stream of clean water.
If the drainage system becomes clogged, there is a high likelihood that pathogenic microorganisms have developed. In this case, it is necessary to clean and disinfect the drainage system.
During air conditioner operation, the filters should be periodically replaced or cleaned. The recommended intervals for this procedure can be found in the user manual that comes with the unit.
If you are unable to resolve the issue of unpleasant odors on your own, contact the specialists from the Green Mountain HVAC & ELECTRIC service center.
It has been a long time since the air conditioner was switched on. The air conditioner makes a crackling noise when it is switched on. What's going on?
If a condensate pump is installed in the air conditioner, it is possible that the float chamber is dry, especially if the unit has not been in cooling mode for a long time. This often happens when the unit is switched on for the first time after the winter season and long idle time. In such cases, service technicians, performing maintenance, usually pour water into the pump. For this, it is worth calling a specialist for a complete service. Of course, there may also be other causes, e.g. foreign objects in the fan impeller or worn bearings. For such problems, it is best to contact a service company and call a specialist to diagnose and repair the problem.
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We have repeatedly solved tasks that seemed impossible to others. We know how to use client resources wisely and efficiently, ensuring high-quality task execution. We address existing problems as effectively as possible, often employing unconventional, integrated solutions.