I have 2 Janomes and love them. The first one is 9000 and I have had it for 15 or 16 years. The foot pedal finally gave out. When I took the machine in for a cleaning, the repair man couldn't believe how much use this machine had gotten. It still sews like a dream. I ordered a new foot pedal and it's good as new. I was able to purchase a used 10000 a few years ago and that one is sewing along just fine, no problems at all.
If you have a new machine and it starts giving you trouble, be sure and take it back and I'm sure the place you bought it will get you what you need. If not, contact the company. I really don't think I would own any other machine.
Don't mess with wires, if your machine is still under warranty, doing that would end the warrant. It could do something to the rest of the machine and then you would really be stuck.
I guess they are having a problem kind of like Toyota. ;-)