Lionel CW 80 Transformer Fuse Replacement

Most likely it is the problem if the green light does not come on when you plug in.

I would not recommend taking all apart just separate the wires and install a new fuse. The old one remove with razor blade the old shrunk heat tubing then unsolder old fuse.

Everyone has their opinion on if it should be fixed, but these are the fuses and link to buy the ones I used on Ebay

I installed it and they work perfectly on 2 CW-80 transformers.

You may have to extend the wires to the fuse so you can maneuver final soldering of fuse and you do need shrink tube.

Make sure you number or identify the wires when you separate and even take pictures with your phone so you know how it is supposed to be reassembled.

It works perfectly despite what some may say that it is not repairable or should not be.

I would also replace the tamper proof screws if you have to do again

You need just a small straight edge screwdriver head to remove them rather than spend money on special head.

cheers