"The ISS crew under the guidance of specialists from the main operational group of the station's flight control successfully repaired the Electron-VM system. As a result, the system was restarted and is fully operational", the representative said.
The system failed on Thursday. On Friday, cosmonaut Anatoly Ivanishin informed the Moscow-based Mission Control Centre that the pressure in the compartment had declined by 52 mm Hg to 681 mm Hg over 11.5 hours, while the leak rate had fallen to 4 mm per hour from 7-9 mm per hour.
The cosmonaut noted that the pressure continued to fall, but at a slower pace. He also suggested trying US patches to seal the crack.
Russian space agency Roscosmos previously said that the air leak posed no threat to the crew.