1. Replace the sealing ring: A common reason is that the sealing ring leaks due to over tightening or service life, so you can replace the matching O-ring or sealing ring.
2. Check the connection: Another possible reason is that the connector is loose or incorrect. You can check the connection, tighten or reconnect the connector.
3. Replace the damaged valve: If other methods can't solve the problem (such as replacing the sealing ring or fastening the joint), it may be that the valve is damaged and causes air leakage, so the valve needs to be replaced.
4. Prevent future air leakage: After replacing the sealing ring, checking the connection or replacing the valve, good maintenance habits must be maintained to prevent future air leakage and prolong the service life of the equipment.
The maintenance and repair of air-conditioning pressure gauges should follow the manufacturer's guidelines as far as possible, work according to the correct operating procedures, and regularly check and maintain the equipment. More importantly, operators must receive relevant training to ensure the safety and accuracy of equipment operation.