Thermistor Failures on Volcano-fitted TEVO Little Monster?

Discussion in 'Printers with E3D inside' started by Adam van Bergeijk, Oct 1, 2019.

  1. Adam van Bergeijk

    Adam van Bergeijk New Member

    Oct 1, 2019
    Likes Received:
    Hello all,

    I own a TEVO Little Monster printer that's been quite happily pushing out print after print for about a year and a half now. As stock, it came fitted with a volcano knockoff hotend, which I replaced with a genuine E3D volcano when the first nozzle reached the end of its life. The printer's been running happily since then with one nozzle replacement, but has now hit a significant issue.

    After the printer stopped halfway through a print late in the evening, I shut it down to work out the issue later. Starting a print to observe in the morning, the hot end heating cycle went out of control, turning filament and whatnot else into fumes as I scrambled to turn of the heater. This indicates to me that there's a problem with the thermistor. I did some pre-heating to test it and it appears to work fine for the moment, but that leaves me none the wiser about what exactly the problem is/was. Thermistor failure would explain the stopped print from the previous night, but I don't know whether the thermistor itself or something in the wiring has gone awry.

    So, my question: do the thermistors supplied with volcano hotends have any record of wear or failure? I skimmed some forum sections here but didn't see much on the topic.

    Would it be recommended to replace the thermistor at certain intervals? The current one has logged well over a thousand hours of printing.

Share This Page