The role of adding refrigerant to the air conditioner
Release time:
2021-07-29
Freon is the medium for transferring heat in air conditioning systems. Without it, heat cannot be effectively exchanged. The air conditioner cannot cool or heat. Therefore, once the air conditioner is low on Freon, it may show external signs such as poor cooling (heating) effect, no cooling (heating), protective shutdown, indoor unit leaking water (sometimes spraying), and ice formation on the indoor evaporator. There are also less visible issues - reduced lifespan of the air conditioner, wasted electricity, and damage to the air conditioner compressor. So, to use the air conditioner normally, there must be enough Freon. Under what circumstances does the air conditioner need to add Freon?
1. Air conditioners that have been used for more than 5 years (any split air conditioner will naturally leak Freon);
2. Air conditioners that have been moved multiple times (Freon will be consumed during the evacuation process when moving the air conditioner);
3. In summer, if the exposed part of the thick pipe at the outdoor unit connection point (i.e., low-pressure pipe) does not condense or is not cool;
4. In summer, if the outdoor unit fan does not blow hot air;
5. In summer, if the return air pressure (thick pipe) is below 0.4 MPa;
6. If the compressor operating current is less than the normal value indicated on the nameplate;
7. In summer, if the high-pressure pipe (thin pipe) is frosted;
8. In summer, if the indoor unit of the air conditioner is frozen or blowing mist (sometimes accompanied by indoor unit leaking water);
9. In winter, if the thick pipe at the outdoor unit copper pipe interface is not hot to the touch; 10. If there are leakage points in the air conditioner; 11. If the air conditioner shuts down after a few minutes of operation (low-pressure protection or overheating protection).
Previous： What methods are there for charging refrigerant?
Next： What is refrigerant? How many types of refrigerants are there?
Sweep the access mobile terminal
Chengdu Dongfang Instrument Co., Ltd.
Service Hotline:8602865518699
Sales Hotline:8613908209306 (Equipment)
8613908085776 (power supply and module)
Contact E-mail:cdoi@cdoi.com
Contact address: dongyi technology co., ltd., no 199, section 2, chongshuang freight avenue, chongzhou city, Chengdu city, Sichuan province, China
CopyRight©2025 Chengdu Dongfang Instrument Co., Ltd. All rights reserved
Hotline：8602865518699
After Sales(power supply and module)：8613908085776
After Sales(Equipment)：8613908209306
Email：cdoi@cdoi.com
Online message
The main products of our company now include refrigerant filling machine, explosion-proof filling machine, vacuum purification filling machine, special power supply, helium inspection equipment, etc.
* Note: Please be sure to fill in the information accurately and keep the communication unblocked. We will get in touch with you as soon as possible.