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What are the reasons for no low pressure in car air conditioning?

1 Answers

VonKaylee

07/30/25 7:53am

There may be several reasons for no low pressure in car air conditioning: 1. Reversed live and neutral wires of the air conditioning power supply: Main manifestations: This usually only occurs during the installation of car air conditioning. Solution: Reconnect the live and neutral wires. 2. Damaged fan or capacitor in the indoor or outdoor unit: Main manifestations: If the outdoor unit fan is damaged, the main symptoms are excessive exhaust temperature or high pressure; if the indoor unit fan is damaged, it manifests as frost formation on the indoor unit. Solution: Replace the damaged fan or capacitor in the indoor (outdoor) unit. 3. Refrigerant leakage or substandard refrigerant quality: Main manifestations: Both the indoor and outdoor units of the car are working, and the compressor is also operating, but the car air conditioning has no cooling effect. Solution: Check whether it is caused by refrigerant leakage or quality issues in the car air conditioning, and promptly add or replace the refrigerant.

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