TRAM Train services have been suspended until further notice after the fleet was "temporarily withdrawn" by the manufacturer.
Stagecoach Supertram said Stadler had advised them to temporarily withdraw the fleet - but gave no indication of when the service might be up and running again.
The service connects tram stops at Rotherham Central station and Parkgate to Sheffield city centre.
The service has been disrupted a number of times in recent weeks during colder weather and the latest disruption began on Friday.
Tram Train tickets are being accepted on Northern train services and on First and Stagecoach bus services X1, X10, X78, 8, 8a, 9, 22x*, 218, 218a, 221, 22a and 22c.
The Advertiser has contacted Supertram and Network Rail for more information.