Blackpool Transport said engineers were working to fix a pantograph issue on Tuesday afternoon (July 19), causing all tram services to be suspended.
“Are teams are working to get this fixed as quickly as possible so we can return to service,” a spokesman for Blackpool Transport said.
In an update posted at 2.19pm, the transport provider confirmed all trams were back in service.
The news came as temperatures in the resort reached a sweltering 35C.
An issue railway networks face amid heatwaves is the risk of overhead wires overheating.
Overhead wires give power to trains by conducting electricity through the pantograph – an apparatus mounted on the roof of the train.
During heatwaves, the overhead wires can expand and sag, causing the train's pantograph to become entangled in the wires and requiring repairs.