20 Most Recent Janome 4623 Mechanical Sewing Machine - Page 5 Questions & Answers

Unfortunately that is the serial number not the model number. The videos in the link might help, but all the parts schematics work on Model Numbers. https://www.google.com/search?q=janome+upper+tensioner+replacement+parts ..

619 Janome Instruction Manual pdf format Janome New Home 619 Sewing Machine Instruction Manual ...

Try the manufacturer

Yes, you should use one drop of light machine oil on every joint or anything that slides.

This would be a problem with the foot control. It needs cleaning or replacing. This link says it has a maximum speed setting

Janome Horizon Memory Craft 8200 QCP Special Edition

https://www.sewingmachinesplus.com > j-8200qc-sp Other special features include an automatic needle threader, speed controller to set your maximum sewing speed and stop / start button if you choose not to use ... https://www.google.com/search?q=Janome+Secio+8200+over+speed ..

Hi, Please turn off your machine and raise the presser-foot and needle bar. Then, you can turn on your machine again. If that does not work, please test another design for your machine to see if the error occurs again. If not, you might need to recheck the programming that you've used for the first design. Thank you.

Hi, please apply oil to any troublesome parts before attempting to move forward again. Thank you.

You may need to rethread all the threads because most sergers need to be threaded in the right sequence. I looks like this one has to be threaded starting at the right and progressing left.

Possible password protection ... give Janome a call.

If Janome doesn't have them, you may be able to find one on web sites like eBay, Craigslist, Etsy...There are after-market vendors who sell extension tables cut to fit your machine. You just tell them the make and model of your machine and they make it for you.http://www.sewingmachinesplus.com/extension-tables.php

Service manual is available at modest cost. $12 USD or $5.50 AUD. https://www.google.com/search?q=janome+mb7+service+manual Adjusting needle bar height https://www.google.com/search?q=janome+mb7+adjust+needle+bar ..

Question edited for clarity. Question moved to category. It is hidden from view. This page of the manual refers. https://www.manualslib.com/manual/79034/Janome-Memory-Craft-4900-Qc.html?page=16 ..

we are USA< we are not a repair site we are just repair support help site in general. just words typed in text box. what country are you, located,first after all you do not want to send it 12,000 miles away and spend 10x what is worth. right. it is not a computer at all ,it is a SEWING MACHINE. so send it to the maker>? ask them. here they are, just ask them for support. and do not be so sure "not much wrong" as that can be wrong. only truth matters, not guessing. It can be replaced but at a cost of £1200 (ouch) at the web site, USA the service center are here. https://www.janome.com/find-a-dealer/?badge=34149 no country told the world is still huge. sorry, I can not guess.

Yes you should. One drop of light machine oil on moving parts and any joints that have a small hole in them. how often depends on how often you use the machine.

Various ideas in the link https://www.google.com/search?q=Janome+500E++bobbin+winding+issues ..

Question edited for make and model in the correct order. Question moved to Janome. It can only be three things. Belt is slack / worn out and slipping. Motor is faulty. Foot pedal needs cleaning and lubrication inside. https://www.google.com/search?q=Newhome+Janom+combi+10+running+slow ..

A Janome dealer might be able to help.

The only thing I can think of is that the needle is scratching it as it comes down, maybe the length of the needle? I think it best to go back to the service centre.

As I gather using a magnet is out of the question, here are a couple of links that may serve you: https://www.youtube.com/watch?v=M5lk1kvH9CY https://www.janomesewingcentre.com.au/shop/instruction-manuals/service-manual-pdf-janome-differential-overlockers/ You probably have the following but I don't expect it to include any disassembly. https://www.manualslib.com/products/Janome-Mylock-644d-2938297.html