A system and a method for melting ice that has formed in an exhaust tube operably coupled to a container holding helium are provided. The exhaust tube is configured to exhaust pressurized helium from the container. The method includes determining when a pressure level in the container is greater than a threshold pressure level. The method further includes applying heat energy to the exhaust tube to melt ice in the exhaust tube to thereby allow pressurized helium to exit the container through the exhaust tube.