The ministry said there were no safety problems following the malfunction.
The reactor will be back on line in approximately 36 hours, once the glitch is fixed, the ministry added.
Earlier Friday, people who wished to remain anonymous told MEDIAFAX that one of the two reactors in Cernavoda would be shut down for two days at the most to repair an equipment malfunction.
“There are no safety issues, and the malfunction is not related to the drought,” the sources said.
Cernavoda currently operates two reactors of 700 megawatts power each and covers around 18% of Romania’s electricity production.
The government plans to build two additional nuclear reactors with similar capabilities in Cernavoda, but the project was put off after several key investors withdrew from the project.