The propeller and driveshaft of Commodore Clipper ferry were damaged during routine maintenance in Spain.
The Ro-Pax vessel (cargo and passenger ship) will now continue running overnight services.
Condor Ferries said it was aiming to minimize disruption and would add high-speed capacity from the UK to cover Commodore Clipper's passenger commitments.
According to John Napton (Condor's CEO), every year they carefully planned their maintenance program to ensure continuity of freight & passenger services to the islands so the problems caused by the shipyard were infuriating.
"The damaged equipment has now had to be sent to Scandinavia so the ship will unavoidably return to service later than planned."
Extra high-speed Channel Islands crossings were put on between Poole (England) and Jersey Island (St Helier) and Guernsey Island (St Peter Port) in order to accommodate passengers booked on the Commodore Clipper.
The company said that all affected travelers would be contacted.
Mr. Napton added that the autumn half term was a busy travel period and they recognized its importance in the calendar so, through those measures, they were aiming to minimize disruption to everyone.