There are many ways to detect refrigerant leaks. Here are some common methods:
1. Visual inspection: Observe the air conditioning system. If you find oil stains in a certain part, it means there may be a leak.
2. Touch method: Wear white gloves and touch the suspicious position with your hands. If you find oil stains, it means there may be a leak.
3. Soapy water leak detection: Fill the air conditioning system with 10-20kg/c㎡ pressure nitrogen, and then apply some soapy water to various parts. The bubbling position is the leak point.
4. Nitrogen water detection: Also fill the air conditioning system with 10-20kg/c㎡ nitrogen, put the system into water, and the bubbling position is the leak point, but this method is easy to cause water to enter the air conditioning system and corrode the internal materials.
5. Fluorescent agent detection: The fluorescent leak detector emits bright yellow-green light under the irradiation of ultraviolet and blue light leak detection lamps. You only need to add the fluorescent agent to the air conditioning system in a certain proportion, wait for the system to operate for about 20 minutes, put on special glasses, and then use the leak detection lamp to illuminate the outside of the system. The leak will show yellow fluorescence.
6. Gas pressure difference leak detection: The pressure difference between the inside and outside of the system is used to amplify the pressure difference through the sensor, and then the leak detection result is expressed in digital or sound, electronic signals, etc., but this method can only detect whether the system is leaking, but cannot accurately find the leak point.
7. Electronic leak detector detection: Use the probe of the electronic leak detector to move towards the system. When the leak detection device sounds an alarm, it usually indicates that there is a refrigerant leak.
8. Halogen lamp leak detection: Light the leak detection lamp. When the air pipe on the halogen lamp is close to the system leak, the color of the flame will turn blue-purple, indicating that there may be a large amount of leakage at that location. However, this method is more dangerous and will produce open flames. In addition, it is impossible to accurately locate the leak point, so it is rarely used.
If the owner finds it difficult to detect by himself, he can consider going to the repair shop to ask professional staff to help detect. Once the refrigerant leak is found, it should be repaired immediately to avoid affecting the cooling effect.
