The noise and vibration of the crossflow fan may have a certain impact on the cooling effect of the oven. Here are some possible effects of noise and vibration on the cooling effect of the oven:

1. Obstructed air circulation: Excessive noise and vibration may interfere with the normal operation of the crossflow fan, resulting in obstructed air circulation. Vibration and noise may cause turbulence or disturbances, hindering the normal flow and circulation of air. This may cause the hot air to not fully cover the surface inside the oven, thus affecting the cooling effect.

2. Limited cooling surface: Noise and vibration may cause the cooling surface of the crossflow fan or oven to be limited. Strong vibration and noise may cause the oven or radiator to partially or completely lose its seal, or cause the cooling surface to loosen. This may cause the heat to not be effectively transferred to the radiator or cooling surface, thus affecting the cooling effect.

3. Uneven cooling: Noise and vibration may also cause uneven cooling effect. If the crossflow fan generates too much noise and vibration when running, it may cause uneven airflow and poor cooling effect in some areas. This may cause uneven temperature distribution inside the oven, with some areas having higher temperatures and other areas having lower temperatures, thus affecting the cooling effect.

It is important to note that the effect of noise and vibration on the cooling effect of the oven is usually relatively small. Ovens are usually designed and tested to ensure good cooling effect within the control range of noise and vibration. However, in order to maintain the best cooling effect, it is still important to choose a reliable crossflow fan with low noise and vibration levels. At the same time, regular maintenance and care of the oven and timely handling of any abnormal noise and vibration problems will also help maintain its normal operation and stability of cooling effect.