One of the LEDs may be bad, remove all of then and then see it the fuse blows when you turn un the instrument lights. If it still blows the fuse, you have wiring problems with the instrument cluster or dimmer switch.
If the fuse does not blow, then put the LEDs back in one at a time. When you find the one that blows the fuse, mark it and set it aside.
Replace the fuse and try another LED in the same socket. If it blows the fuse, the socket is bad, and the LED is probably OK.