Reasons for Ice Formation in the Low-Pressure Line of a Car's Air Conditioning System
1 Answers
Reasons for ice formation in the low-pressure line of a car's air conditioning system: 1. Normal frost formation: When the air conditioner starts operating, both the condensation temperature and pressure are relatively low, causing the capillary tube to supply less refrigerant than normal, which in turn lowers the evaporation pressure. This results in frost formation on the low-pressure supply line. However, this frost formation and melting is a brief process, typically starting shortly after the compressor begins running. The entire frost melting process usually completes within 5 minutes, after which the air conditioner operates normally. 2. Clogged refrigeration system: A clogged refrigeration system can prevent the refrigerant from circulating properly, leading to frost formation. If there is a restriction in the connecting pipes, inspect the pipeline for any blockages or bends. If such issues are found, it indicates a flow restriction, and replacing the pipe may be necessary. 3. Prolonged operation without stopping: Extended continuous operation of the air conditioner can cause frost formation on the high-pressure line (thin pipe) due to insufficient refrigerant. Ice formation on the low-pressure line can occur due to excessive refrigerant or excessively low indoor temperatures.
