Our backyard lamp and electric outlet stopped working and I am trying to figure out what else I can try to get this working again. I've already tried toggling the switches on the electric panel. I am not sure if it is safe and appropriate to swap out the fuses (see picture). Any advice, tips, or suggestions would be appreciated.
Electric Outlet
The electric outlet used to work and somehow just stopped. I am interested to know what things I can try to bring this back online. I am used to working with low voltage at work for data and I'd like to know what I can safely evaluate.
Lamp
Our lamp in the backyard used to work just fine. One day without warning it just seems to have stopped (the outlet socket is not producing electricity and the lights no longer come on).
Electric Panel
The panel seems to indicate that the electric lamp is controlled from this location. I've tried toggling the switches without getting the power back on to the outdoor lamp.
Fuse Box
Our house has one or more fuse boxes like this one. If I need to change a fuse, how would I do so safely?
Update 02/08/18
I am continuing to research this issue based on the very helpful comments and will go out today in search of the proper tools to test for connectivity (I welcome any recommendations).
Lamp Switch
On the opposite side of the electric outlet, the lamp has two switches. One feels a bit mushy when pressed and the other clicks firmly. Toggling has no visible effect on the situation.
Best Answer
I'm just sharing the answer and outcomes to this question. Hope it helps someone else. Thanks to everyone for the comments especially isherwood and Ed Beal for leading me in the right direction.
I found additional GFCI switches and outlets in the backyard shed. The original owner apparently wired this in series to the outdoor lamp.
There was a GFCI outlet with a reset button which when reset did not actually reset (the light on the reset tab stayed open):
After that, I found an electrician and pointed them to the problematic outlet. Another hint was that the outdoor light outside the shed had been displaying unusual behavior (it has a motion detector and it started to stay on all night at about the same time our lamp went out.)
Outcomes:
Once the shed condition was repaired, the lamp and electric socket began working again. I sure would like to really understand what the technical fix was (if anyone is inclined to share some insight; it'd be much appreciated). I try to learn from each experience so I'd like to understand what could have caused this and how it was fixed.
I guessed that the original issue might be related to weather and added a flip box over the two outdoor switches.
Just not sure how the electrician resolved the open circuit in the shed.