I just noticed something that does not look right. The fuse holder for your fuse has much thicker leads compared to mine. This could mean that your fuse holder is for a much more amperage fuse than mine.
This could also mean you found a different fuse from mine. But you said it was blown.
Do you still have the old fuse? Can you read all the numbers and letters around the fuse, and post a photo of the blown fuse here?
Be sure to check if the new .315 amp fuse is blown. If it looks good, still test it on an ohmmeter.
-Don- Reno, NV