Basically, the system is very quiet. Since no exhaust air is required, fan noise is also eliminated. Nevertheless, it can happen from time to time that you can hear something. This is usually due to a crooked position or a less than optimal structure. Here it is important that the cabinet is straight. Use the adjustable feet and a spirit level. In addition, the poles for the module should not press too the outer wall so that there is no acoustic transmission here.
