I started getting abnormal nozzle temperature errors several days ago. I tried everything in the Wiki and also replaced the entire hot end assembly with a spare I had.
Nothing fixed the issue so I believe I need a new TH board.
However I’m getting frustrated waiting for a reply from customer service so am tempted to just order the part myself to not have to wait any longer.
If that ends up fixing it will Bambu refund me?
I highly doubt it to be honest. I don’t know for sure, but no would be my guess.
That’s what I figured. But with the backlog after Chinese New Year, I really don’t want my printer not working for a month or however long it will take.
Especially given it’s less than a month old and already having parts failing.
They won’t refund. Sorry to say. I get all you’ve done but there’s one thing you could try just for giggles. Take off the toolhead cover, the top two plugs. Top and biggest is the TH board, unplug it and reseat it, and below it is the runnout sensor, do the same with that.
I’m not offering it as a 100% fix. Just that I had a very similar problem and replaced all you have, ordered a new board as well. i just happened to be looking very closely and realized the runnout was not plugged in correctly. It was really hard to tell it wasn’t. Just reseated and it solved the problem.
Good idea. I’d only followed the Wiki but hadn’t done as you suggested.
I’ll give that a try and see if that helps at all.
The problem started super inconsistent and now I can’t print at all. So the symptoms scream of a loose connection or solder join that slowly failed. Fingers crossed your fix is the one!
Well - I did as you suggested and I was at least able to complete the calibration process! So that’s an improvement. Starting a print now so we shall see.
thats fantastic, good luck
Spoke too soon. Abnormal nozzle temp error on the first layer.
Guess I’ll just wait for customer service to get back to me.
sorry. you’ve tried everything I would think to do. Good luck.
Appreciate it.
The ironic thing in all of this is I’ve spent as much time sorting kinks on this thing as I ever did with my Ender 3. Only had it a month and it’s been one issue after the other.
AMS jams, warped heat bed, nozzle temp malfunctions. I haven’t been able to get more than 3 prints without something futzing up.
howdy. sorry you had this problem. I have the exact same issue and tried all the wiki fixes, so I also think I need a new board. Made a tix, and waiting for customer service currently. How did you fix your situation? Did you end up buying a piece yourself or wait for bambu?
I’m now on my 4th toolhead board, still having issues. They’ve sent some new parts to try out, but have been traveling so haven’t had a chance to install.
The TH board fixed it for a few weeks at first. Then stopped working. Then one week. And now a brand new TH board did nothing.
I should add I specifically mentioned buying parts that didn’t fix the issue. They said they’d refund them if they’re deficient, but said they wanted to focus on getting my machine working. It’s been useless since April 17 now (though 1 week of that is me traveling so not futzing with it).
Damn that sucks. Hopefully you can get it sorted out. I reinstalled brand new Ceramic Heater & Thermistors and it didnt fix my issue. I narrowed the problem down to probably my TH board and customer service hooked me up with a new one. I replaced it and its been working fine for a few weeks. Hopefully it keeps on going. Thanks for your information about your situation. Hope it works out!
That’s awesome the TH board fixed yours.
My suspicion, based on pure hunch and zero data, is there was a short or loose connection somewhere else on the machine. The TH board fixed it a bit, but with continued use that loose connection continued to vibrate and is now completely broken, which is why a new TH board doesn’t fix it at all.
The latest parts I got are new thermosistor and hot end, but I’ve already tried brand new complete hot end assemblies with zero effect. Another example of them not reading what I wrote.
I’ll still try the new parts, but if they fix it, it would mean I purchased a defective TH board, and 2x defective complete hotend assemblies. Which is horrific luck or horrific QC. Or maybe both.