First trip, first time using gas in Caravan Gas Posted July 17, 2020 32 minutes ago, swirly182 said: In a safe and controlled manner you could leak test all the connections in the locker. Mix some fairy liquid with water and start spraying. Fully open the locker to provide good ventilation. I would start at the flexible hose connections. Of course, if you aren't confident / competent isolate and wait for a technician. (engineers don't use tools!) That would be my course of action and if no spray available a brush or even a strip of rag. It is quite likely that if using propane that the connection to the bottle is not quite nipped up enough. I have not used butane for many years but isn't there a rubber seal between bottle and hose that gets brittle over time?