Thanks again Carl.

Mine has started this. I plan to replace with a deans connector.

I just got a thin zip tie and run between the wires on each side of the connector and around it. Have never had an issue and I have a second generation 1.0 with the black connector which is the one known to be bad.

No white is the heater wire and the black two wires are thermistor. Your solution is depending on what your problem is....

Thanks for the info and tips.

If you solder the joint, you should still have enough play to remove the extruder assembly up to on top of the printer case.

Thanks. I expect I'll be doing the soldering within a few days/weeks, at the next 0011 failure!

I was able to do the optical sensor mod without cutting my wires a few days ago.

I would suggest that you pre-empt further issues by installing a more robust connector or soldering the wires. It's a real bummer to have your six hour print fail when your extruder suddenly gets cold near the end of the job...

I was going to do the solder job until I noticed the white connector was new.

Does soldering mean it is hard to take out the extruder head?

Anyway, I've now promised myself to solder when it next fails, hope it's ok for a few more prints...

You can buy a thermistor 100k cable with teflon insulating online for like 5$ Might be smart to pick one up. The small cable the thermistor uses is hard to solder.

Scuse my ignorance, that white textile covered cable is the thermistor, not the heater coil?

It eventually failed completely and I ended up soldering the wires together. Your connector, even though it may be a revised one that XYZ installed to mitigate the issue, is probably failing as well.

I would suggest that you pre-empt further issues by installing a more robust connector or soldering the wires. It's a real bummer to have your six hour print fail when your extruder suddenly gets cold near the end of the job...

https://www.youtube.com/watch?v=xyn6TOsemqI

but I noticed that the connector in the video is not the same as my one. I bought my DaVinci in Jan 2015, the video is dated Jan 2015, but maybe they've already changed the connector to a higher quality one?

The smaller image is from the video...

...my connector is white and seems a different shape. So should I remove it and solder the wires together or not?

I'm having doubts about the soldering because as I was probling the two connectors on the side of the extruder it started working again...

...which has happened to me before. So could it be a bad connection in the side connectors, or wiggling the white connector made it work again.