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min temp reached error

davidtriunedavidtriune Posts: 16Member
edited June 2018 in Getting Started & Troubleshooting
I just started printing and after about 500g of PETG I can't print anymore, stops after raft every time. I cleaned the nozzle and checked the 3 side connections and the heatbed connector.  where else do I check? for the A5 model.
Post edited by davidtriune on

Comments

  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    edited June 2018
    Can you please copy the error message from pronterface here?
    Post edited by Samuel Pinches on
  • davidtriunedavidtriune Posts: 16Member
    It just stopped when the temperature falls below the minimum temperature. It went like this:
    Error: MINTEMP triggered, system stopped!
    Error:Printer halted. kill() called!

    I found that cooling was on, so I turned it off and it seems to work now. Strange that it keeps turning it back on in CURA profile after I turn it off...
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    Cooling shouldn't trigger min-temp. Min temp is set at 5C... are you printing in a freezer???

    Even excessive cooling could only trigger "heater failure" where the printer is noticing no temperature rise after the heater has been switched on for a long time.
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    Heat up the bed, and nozzle, and then manually move the head and nozzle in X, Y, Z while watching the temperature measurements in pronterface. Wiggle all the cables. Try to find a drop in temperature which could indicate a broken cable or similar.
  • davidtriunedavidtriune Posts: 16Member
    edited June 2018
    ok ya it's been happening again. it said it was the bed.

    moving it around, I never noticed any drop in temperature. bed and mobo connections seem fine. decided to set mintemp value to 0 to bypass the error, then it seemed to be fine again. It's probably just a brief temp fluctuation.  

    then i ran into a new problem, that nothing sticks to bed unless I print a raft. So going to buy a bed sticker to see if it solves that.
    Post edited by davidtriune on
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    edited June 2018
    Regarding bed adhesion, it can be fussy if there are fingerprints or oils on the bed: http://jgaurorawiki.com/a5/bed-adhesion
    Post edited by Samuel Pinches on
  • vlangleyazvlangleyaz Posts: 1Member
    Hello, 
    I'm getting the mintemp error anytime I try to heat the bed over 70C.  It heats and prints fine up to about 50C bed temperature.  It just started doing this after I printed a few ABS prints that required the bed be heated above 100C.   Those prints were successful.   Now I can only print PLA (at least if I do it right) because I can't get the bed to heat above 70C without the printer shutting down.  I don't see any loose wires or burned connectors.    Could this be a power supply issue?  I live in Arizona so room temperature is not an issue.   
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    edited November 2019
    Welcome @vlangleyaz - min temp is typically a short circuit on thermistor wires for bed or nozzle. Check the wires on nozzle for thermistor are not broken. Check the bed wires are not damaged - its a chronic issue for some of the older A5 printers with the drag chain. Try heat both up to temperature, and then use the menu option to disable the stepper motors. Move the axis around by hand and wiggle wires and see if you get notice any issues with temp readings. It is definitely not a power supply issue.
    Post edited by Samuel Pinches on
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