Truma dual solar panel in Bailey Caravans Posted December 31, 2019 3 hours ago, TintentTerry said: I also have a 2015 S3 Cadiz and have a 15amp fuse next to the 30amp Battery fuse (see attached photo). The 15amp fuse is between the Truma solar charger and the battery. There is also an in-line connector between the 15amp fuse and the solar charger. This can easily become disconnected. If the connector is fully plugged in and the fuse is OK, you should be able to measure the battery volts at the Solar charger output to battery with a multimeter. If there is an open circuit between the Solar charger and the battery there will be the full PV panel volts on the Truma Solar input terminals and zero volts on the Truma battery output terminals. The LED should also be either a steady Green or flashing depending whether the battery is charged fully or not. No lit LED if there is a blown 15amp fuse or an open circuit between Solar charger and Battery. From what you have said in your posts your Truma Solar charger may be OK and its just a bad connection. Good luck. I have also attached a link to the Truma manual. https://www.truma.com/web/downloadcenter/files/truma-solar-dual-battery-charger-operating-instructions-2019-uk-en.pdf Photo showing the Blue 15amp Fuse and the white inline connector fully plugged in. In my 2015 S3 Cadiz the fuses are located on the right, under the Near Side fixed bed. Hi Terry thanks for your reply I will have another look but don't recall another wire like that next to the battery fuse could it be at back of the consumer unit.