Olmedo had already agreed to allow jurors Thanksgiving week off. She stopped their discussions Friday and told them to return and resume deliberations on November 28.
Masterson, 46, is charged with the rape of three women, including a former girlfriend, in his Hollywood Hills home between 2001 and 2003.
He has pleaded not guilty, and the defence said the acts were consensual.
Masterson, 46, did not testify during the trial. His lawyer presented no defence testimony and instead focused on inconsistencies in the accounts of the three accusers, who he said changed their stories over time and spoke with each other before going to police.