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What Causes Ice Formation on Automotive High-Pressure Pipes?

1 Answers

Jensen

07/30/25 7:36am

Ice formation on automotive air conditioning high-pressure pipes may be caused by compressor malfunction, compressor leaks, or insufficient refrigerant. Below are relevant details: 1. Compressor pressure: Normally, automotive air conditioning compressors operate at 1500-2000 rpm, with high pressure around 1.5-2.0 MPa and low pressure around 0.15-0.35 MPa. If the low-pressure gauge drops rapidly during refueling while the high-pressure gauge also decreases quickly, this may indicate excessive expansion valve opening, requiring inspection, repair, or replacement. 2. Automotive air conditioning: Automotive air conditioning systems regulate and control cabin temperature, humidity, air cleanliness, and airflow to optimal levels, providing passengers with a comfortable environment that reduces travel fatigue. It also creates favorable working conditions for drivers, serving as a crucial ventilation device for safe driving.

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