I just took possession of a new to me 2017 Eyra. Brilliant boat! Pardon my ignorance, but I hear a very loud fan noise when turning on the lighted handrails. 1. What is the purpose of this fan? 2. Can it be replaced? 3. Can it be disabled? I looked in the bilge and could hear it, but couldn’t find it. The lights will be a welcome addition on early mornings, but the fan noise will be intolerable. Thanks for the help.