I have been sewing for thirty years now, so for most a lifetime. When I was younger all of my machines were used. Professional service was a luxury, so I would take the machine apart and do my best. And it worked.
A few years back my Husqvarna Emerald Sewing machine blew a fuse, it wasn’t under warranty, so to replace the 3$ fuse cost me $89& taxes. Not cheap. So, when the fuse went a few months later I took the machine apart, replaced the fuses and repositioned the wires to make then next fuse replacement a snap. The whole machine had to come apart to get access. Well, in doing so, I flipped some wires in replacing the fuses. The consequence was that they light on the machine would only work when the pedal was in use. A nuisance but not broken.
So, I recently listed the machine on crags list and the one offer was incredibly low. So, last night I took it apart to fix the issue.
Now if I had looked at the bottom once the plate was off I should have notice that the fuses were yellow wire to white wire, but I didn’t. I was thinking that I had put the wrong wires to the machines computer board. So, I unscrewed all kinds of screw, coaxed the plastic bits apart and swapped the wires. Then I put it back enough to test, and the machine said no, they were fine the way they were before. I then went looking to see what was amiss and that was the moment that I realized I didn’t need to pull it all apart.
The picture below shows the correct fuse wiring. While I was in the machine, I cleaned and lubricated all the gears and moving parts. Now it should sell for closer to the asking price.
I just want to emphasize that this was only done on machines that were beyond the manufactures warranty. Never touch a machine under warranty – it will void it.