This subject seems to always causes much confusion during our PAT Training courses - so thought about covering this in our first post.
During the course our advise is:
In a working appliance, if you find a 3 Amp or 5 Amp fuse then there is no need to change this. Just leave this in place.
If you find a 13A fuse, then check the power rating. This is usually found marked in Watts on the rating plate.
