The Ultimate Guide to Activating Heating Mode on Your Air Conditioner: Warm Your Home the Right Way, Efficiently and Economically

Turning off the air conditioner’s heating mode or turning on the AC’s heating mode is not difficult. This article will guide you in detail on how to turn on and off the AC’s heating function.

The Operating Principle of the Heating Mode in a Two-Way Air Conditioner

Similar to the cooling principle, the heating mode operates indirectly through a heat exchanger, meaning the air is not directly heated by the compressor and then blown onto the user. Instead, energy is transferred through a refrigerant to warm the air, which is then evenly distributed throughout the room, providing widespread heating.

For air conditioners, the operation of the compressor is the most energy-consuming part. In addition, some air conditioners have an auxiliary electric heater to enhance the heating effect.

Therefore, the actual performance of the heating mode consumes more electricity compared to the cooling mode.

How to Turn On the Heating Mode of a Two-Way Air Conditioner

Depending on the brand and model, you can adjust the temperature in the HEAT mode of the air conditioner within the range of 10-30 degrees Celsius, 16-30 degrees Celsius, 20-24 degrees Celsius, etc.

The heating mode of the air conditioner is usually displayed through one of the following two indicators:

• Sun icon: Brands such as Daikin, Mitsubishi, Toshiba, Sharp, and Samsung will have different sun icons as shown below.

• HEAT (Panasonic, Fujitsu, etc.)

When the Air Conditioner Is Not Already Turned On

Step 1: Start the air conditioner by pressing the ON/OFF (START/STOP) button.

Step 2: Press the MODE button -> select the HEAT mode or the sun icon on the control panel.

Step 3: In the temperature adjustment area (TEMP), press the up or down arrow to increase or decrease the temperature to adjust the room temperature according to the actual conditions.

Note: Each air conditioner brand has its own characteristics, so you should refer to the user manual for the most accurate instructions.

When the Air Conditioner Is Already Turned On

If the air conditioner is already turned on and operating in another mode, to switch to heating mode, simply use the remote control and perform the following two steps:

Step 1: Press the MODE button until you see the HEAT mode or the sun icon appear.

Step 2: Press the up/down arrow to adjust the temperature as needed.

Note

• When switching the air conditioner from heating to another mode, simply press the MODE button until the desired mode appears, then adjust the temperature accordingly.
• To turn off the air conditioner in heating mode, just press the ON/OFF (START/STOP) button.

Instructions on Turning On the Heating Mode for Air Conditioners of Some Brands

How to Turn On the Heating Mode on Funiki/Daikin Air Conditioners

To set the heating mode on Funiki/Daikin air conditioners, press the MODE button, then select HEAT. At this point, the sun icon will appear on your air conditioner’s control panel.

On the remote control, press the MODE button to select from the following modes:

• AUTO: Automatic.
• HEAT: Heating (indicated by the sun icon)
• COOL: Cooling – Indicated by a snowflake icon.
• DRY: Dehumidifying – Indicated by a water droplet icon.

You can adjust the temperature on Funiki/Daikin air conditioners by pressing the TEMP button or by pressing ▲ (increase temperature) or ▼ (decrease temperature) buttons.

How to Turn On the Heating Mode on Panasonic Air Conditioners

To set the heating mode on Panasonic air conditioners, press the MODE button, then press HEAT. At this point, “HEAT” will appear on your control panel.

On the remote control, pressing the MODE button will give you the following options:

• AUTO: The machine operates in automatic mode. In this mode, the machine will automatically maintain the room temperature at around 23 – 25 degrees Celsius.
• COOL: The machine operates in cooling mode.
• DRY: The machine operates in dehumidifying mode. In this mode, the temperature produced is not lower than the room temperature. During the use of mild drying, the indoor unit’s fan will operate at the lowest level.
• HEAT: Heating mode.
• FAN: Only the fan operates.
• E – ion / Ionizer (for Inverter air conditioners with Inon mode): Air purification and ion generation function. Releases about 20,000 negative ions into the room for a fresher environment.
• POWERFUL: Quick cooling function. This mode will quickly cool the room when the machine is first turned on.
• QUIET: This function minimizes the noise generated by the air conditioner in the room. Suitable for sleeping. Press three times to cancel this mode.

You can adjust the temperature on Panasonic air conditioners by pressing the TEMP button or by pressing ▲ (increase temperature) or ▼ (decrease temperature) buttons. To switch from degrees F to degrees C, hold down the down arrow in the Timer box for about 10 seconds.

How to Turn On the Heating Mode on Mitsubishi Air Conditioners

How to turn on the heating mode on Mitsubishi air conditioners:

• Step 1: Press the ON/OFF button.
• Step 2: Press the Mode button, and the following settings will appear:
  • AUTO: Automatic
  • HEAT: Heating (indicated by the sun icon)
  • COOL: Cooling – Indicated by a snowflake icon.
  • DRY: Dehumidifying – Indicated by a water droplet icon
• Step 3: Select the HEAT mode or the sun icon.
• Step 4: Press TEMP and then press + or – to increase or decrease the set temperature in the room.

What Temperature Is Best for the Heating Mode?

Experts recommend setting the air conditioner’s heating mode to a temperature range of 22-25 degrees Celsius during the winter.

Additionally, when the outdoor temperature is too low (around 7 degrees Celsius and below), the heating efficiency of the air conditioner starts to decrease. To heat effectively, users can combine the air conditioner with other heating devices such as heater fans, heater lamps, oil heaters, etc.

Does the Heating Mode Consume More Electricity Than the Cooling Mode?

The principle of heating and cooling the air in an air conditioner is the same, operating indirectly through a heat exchanger.

The efficiency of the air conditioner when heating is about 4% higher than when cooling, but the power consumption remains the same. So, it is not true that the heating mode consumes more electricity than the cooling mode.

Using the Heating Mode Correctly Can Save Electricity

To use the heating mode of the air conditioner effectively and efficiently, users should pay attention to the following points:

1. The Capacity of the Air Conditioner Should Match the Room Size

An air conditioner with a capacity of 9000 BTU (1HP) is most effective for both cooling and heating a room with an area of 8 to 15 square meters. A 12,000 BTU (1.5 HP) air conditioner is suitable for heating an area of 16 to 22 square meters. However, the installation location also affects the efficiency of the equipment, so it is important to choose the right installation location for your air conditioner.

2. Set the Temperature Reasonably

In winter, reducing the set temperature by 2 degrees can save more than 10% of electricity. Therefore, it is recommended to choose a temperature that is not too different from the outdoor temperature to ensure energy savings and avoid temperature shocks when moving between different environments. Additionally, since warm air is lighter than cold air, it tends to rise, so the placement and direction of the air conditioner can also have an impact on energy consumption.

3. Set the Fan Speed Reasonably and Avoid Frequent Changes

Specifically, when the air conditioner is first turned on, set the fan speed to high to accelerate the heat exchange process in the room. Once the device is operating stably and the room temperature matches the set temperature, adjust the fan speed to low.

4. Pay Attention to the Humidity of the Room

Using the heating mode will cause the air in the room to become dry. Therefore, it is necessary to pay attention to the operating mode and take supportive measures to ensure health. It is recommended to use a humidifier to maintain skin and respiratory health when using the heating mode.

5. Keep the Room Space Closed

However, this will make it difficult for air to circulate, and prolonged exposure to stagnant air can be harmful to health as it creates conditions for harmful bacteria to thrive. Therefore, it is important to ventilate the room periodically after a few hours of using the air conditioner to be a smart consumer.

How to Fix the Heating Mode Not Working

If the heating mode of the air conditioner is not working, it could be due to various issues:

• The system is in cooling mode—this is a common issue. Ensure that the heating mode is actually activated via your remote control or wall-mounted control panel. This mode is usually activated by a button with a sun icon.
• The system is old and does not support heating—older systems may not have the capability to reverse the cycle. So, if your system is really old, the heating mode may not be supported.
• The filter is extremely clogged—when the air conditioner’s filter is severely clogged, air will have a harder time passing through. Clean the filter once a month or more frequently if you live in a particularly dusty or polluted environment.
• The system needs to be reset—try resetting the system by turning it off at the circuit breaker and then turning it back on.
• You are trying to use different modes for separate units—if you have a multi-split system, where multiple indoor units use one outdoor unit (compressor), you cannot use both heating and cooling modes on two separate units at the same time, as they all use the same cooling cycle.
• The system needs repair—if all else fails, you may need an air conditioning technician to take a look. A component in the system may be faulty.

Hopefully, with this information, you can use the heating mode of your air conditioner effectively and efficiently.

And don’t forget to visit META.vn to buy an air conditioner! Thank you for reading!