Toyota 9000 gives me a Needle Case Error F1H at the start and comes to a dead stop.

Sounds like time for a service call.

Be sure that it's still plugged in and not on a plug in that is controlled by a switch that got accidentally turned off.

Other than that it is likely that a fuse got blown or the power supply died. In that case take it in for repair.

change the needle--
Correct needle insertion is mandatory for proper use of your sewing machine.
Raise the needle bar to the highest point, then loosen the needle clamp screw to remove the old needle.
Place the new needle in the needle clamp with the flat side of the needle facing the back, (round needle, the groove in the needle should face away from the shaft).
Push the needle all the way up as far as it will go. Then tighten the needle clamp screw.

rethread the top thread--top & bobbin
check the bobbin to make sure the bobbin is not damaged
reinsert the bobbin in the case correctly

Upper thread breaks
needle may be in backwards
Raise the needle bar to the highest point then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
upper tension may be to tight
the needle may be bent or damaged
thread may be hanging up in bobbin case--check area for loose threads or lint

Upper thread breaks
needle may be in backwards
Raise the needle bar to the highest point then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
upper tension may be to tight
the needle may be bent or damaged
thread may be hanging up in bobbin case--check area for loose threads or lint

probably damaged bobbin case...needle strikes are a common issue

From what I've read here, it could be one of two things: a blown motherboard or a scratched bobbin case.


Before you do anything else, I'd remove the bobbin case, clean it and the area around it thoroughly (and check it for scratches or dings -- perhaps a needle broke recently?) and then replace it and see if that fixes the error.

If not, unfortunately, I'll bet it's time for a check-up with a repairman. :(

Best of luck to you!!

I have a Janome 9000, was sewing and broke needle, replaced and broke another. I didn't have machine threaded, took out bobbin and would sew a little and stop saying thread broke. I took off top plate and started machine again, sew a little and stop saying thread broke. So I took out bobbin case and sewed again and stopped repeating the message. Everything looks OK, bobbin case and top plate. I guess I want to know if the timing could be off or do you think it is the computer part of the machine...Should I take it to the Sewing Machine Shop??

There are several possibilities, take a look at earlier solutions page for similar problem Here

I would also suggest a Q-tip or cotton bud dipped in metholated spirit to clean the bobbin case area, especially the recess track where the bobbin case spins.

If there are any needle strikes on your bobbin case which have spoiled the smooth surface required for efficient thread movement over the top, get a replacement for a few dollars.

For the record, Janome gives a 5 year warantee on circuit boards, so in the unlikely event that they fail, free replacement.

Cheers

Bargainbox

My Janome 9000 has always done that. I can prevent it by raising the needle when I first start the machine, getting it to sew quickly or raising the needle and letting the machine sit for a few minutes. I think my computer wants to warm up a minute. As you can see I.m not a technical person but it works for me.