Burnt effector

Ulcast

Hi, i have a problem with my effector. Some days ago instarted having problems with heater faults.i checked the cables and they were ok. Yesterday the heater didn't work at all. I disassembled everything and found the effector as you can see in the picture. Why has this happened?

[url=https://postimg.cc/D4fdf36K][img]https://i.postimg.cc/HnXS2p7j/20220705-172305.jpg[/img][/url]

alt text

Thanks

jay_s_uk

@ulcast what heater are you using? voltage? wattage?

Ulcast

@jay_s_uk said in Burnt effector:

@ulcast what heater are you using? voltage? wattage?

Original e3d heater 12v 30w.

Phaedrux

What heater faults did you get?

What were you using for wiring?

When and where did you purchase the Smart Effector?

Ulcast

@phaedrux I bought it in 2018 on reprapworld.com,
I used the original wires of the heater.

While i was printing the temperature dropped down and it have me the fault heater message. It happened two times, i tried printing a third time, but it didn't heat up.

Phaedrux

Are you able to test the heater cartridge itself (carefully) to see if it's still functional?

Just to confirm that you are using a 12v PSU with your 12v heater cartridge? Had it been functioning correctly for some time before the fault?

Did the heater cable have strain relief? It's possible there was a weak crimp or cable causing a poor connection and increased resistance leading to the heat.

Ulcast

@phaedrux said in Burnt effector:

Are you able to test the heater cartridge itself (carefully) to see if it's still functional?

Just to confirm that you are using a 12v PSU with your 12v heater cartridge? Had it been functioning correctly for some time before the fault?

Did the heater cable have strain relief? It's possible there was a weak crimp or cable causing a poor connection and increased resistance leading to the heat.

Yes it is 12v, it has been working for 4 years, no problem.
Sonetimes the heater wire broke near the molex connector because i don't have strain relief (i don't know where to buy it). So i put some electrical tape around the wires.
This time the wire was ok.

Now i soldered the pin back and everything is working again, but I'm afraid it could hallen again... I'll buy a new molex connector and crimp again all the wires very carefully.

Phaedrux

We've added a note strain relief here: https://docs.duet3d.com/en/Duet3D_hardware/Accessories/Smart_Effector#warnings