Full Luas Green Line services have resumed following a technical fault with a tram at Kilmacud on Friday morning which caused disruption.
However, commuters should expect delays of between 15 and 20 minutes as services return to normal, the operator said.
Trams were temporarily not running between Sandyford to Balally earlier on Friday.
"Luas tickets are valid on Dublin Bus for the duration of this disruption," a statement from the tram operator said.
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“Please allow extra time when travelling this morning. Please accept our apologies for any and all inconvenience.”