One of the ceiling lights in my Hymer TSL 588 has started flickering, just one, all the rest are behaving fine. If it was a voltage fluctuation issue I would have expected it to possibly affect other lights. How do I remove it to check if it is a wiring or bulb issue? I cannot find any information in my Hymer booklet about removing and replacing an LED light. I do not want to just pry it out if there is a proprietary method of removing it.