Rush hour commuters who use the Hobsonville-Beach Haven ferry have been forced to find alternative ways home.
Auckland Transport tweeted, "the 5.15pm & 6.15pm Hobsonville-Beach Haven ferry services are cancelled this evening due to a mechanical fault".
Bus replacements to Hobsonville will depart from pier 1 for stranded passengers.
Scheduled buses to Beach Haven will also depart Quay St by the PwC building, Auckland Transport tweeted.
The ferry route is operated by 360 Discovery Cruises, a spokeswoman for 360 Discovery Cruises and Fullers said.
She said the services were removed as a safety precaution due to a mechanical fault.
"Work will be undertaken on the vessel over the weekend so we can have her back in service for the Monday morning commute," she said.
She confirmed passengers who would normally catch the 5.15pm and 6.15pm services to Hobsonville will be transported home by replacement buses departing from The Cloud at Pier 1.
"Those passengers travelling to Beach Haven will need to do so by public bus service which departs from Quay Street [outside PwC]."
An Auckland Transport spokesman said Fullers ferry services have also had recent mechanical problems, leading to criticism by customers.
On January 9, six services were cancelled due to a "vessel breakdown".
North Shore councillor Chris Darby has regularly criticised the Fullers services and said in a tweet yesterday he had written to Transport Minister Simon Bridges requesting the Devonport, Waiheke, and Stanley Bay services be operated by Auckland Transport.