Skimmer pump problem

[CoralClasher]

So my Skims brand DC pump is acting up. It will ramp up to full speed then shut off. I’m not using the skimmer body just the pump for air. I did the obvious things unplugged and cleaned it. I don’t mind it doing this but if it means the pump is on its last leg I will get a new one before it dies. Any thoughts will be helpful thanks.

 

[CoralClasher]