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Welcome. My name is ***** ***** would be glad to assist.
It has what they call a fuse, but more like a circuit breaker in my opinion.It pops out when tripped and must be pushed back in to reset.Does it stay in when pushed or does it pop out again?
If it pops back out and will not stay in, unfortunately the transformer has failed and would need replacing .
Double check the screw fittings to be sure they are tight
Here is the instructions:ENGLISHThis product is equipped with a fusewhich can be reset. If the fuse is activated,first make sure that the screws areproperly tightened. To re-establish contact,wait for at least 10 minutes beforepressing the button
Let me know how it goes,