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What Causes One Side of the Car Air Conditioner to Blow Cold Air While the Other Side Doesn't?

1 Answers

Brandon

07/30/25 8:04am

Here are the specific reasons why one side of the car air conditioner blows cold air while the other side doesn't: 1. Insufficient or low refrigerant: This may be caused by a minor refrigerant leak. You can observe this through the sight glass on the dryer tank. When the air conditioner is running normally, if continuous bubbles appear in the sight glass, it indicates insufficient refrigerant. If obvious bubble flipping occurs, it means the refrigerant is severely low, and adding refrigerant can solve the issue. 2. Loose drive belt of the car air conditioner compressor: If the drive belt is loose, the compressor may slip during operation, leading to reduced transmission efficiency and a drop in compressor speed. This results in decreased delivery of compressed refrigerant, causing the car air conditioner to stop cooling. If the compressor drive belt is too loose, it should be tightened. If it cannot be turned by hand, the belt is too tight and should be slightly loosened. If tightening is ineffective or the drive belt shows cracks, aging, or other damage, it should be replaced with a new one.

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Why Do 4S Stores Charge License Plate Fees?

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