You can check fuses without removing them by using a mutimeter. The photo shows they have 2 small exposed contacts. Set the multimeter to Ohms and touch a probe to each contact . If the reading changes from one to zero you have continuity and the fuse is good. If it stays on 1 either the fuse is blown, or you didnt make good contact with the probe.
The same method can be used for checking lightbulbs etc ,etc . Multimeters have many uses, well worth buying one. Even if a bulb, or indeed a fuse, looks ok visually its worth double checking it with a multimeter.