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PREHEAT ERROR  

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thomas.s10
(@thomas-s10)
New Member
PREHEAT ERROR

The bed temperature comes up to 60 and holds.

When the Extruder temperature reaches 170 the heating process shuts down. I get a PREHEAT ERROR.

I’ve checked all the cables and they are in the correct locations.

The temperature reads fine in the display , until it reaches 170, then the target temperatures go to zero

and the Display reads the temperatures until they reach room temperature.

Questa discussione è stata modificata 5 years fa 2 tempo da thomas.s10
Postato : 12/08/2019 12:00 pm
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(@)
Illustrious Member
RE: PREHEAT ERROR

Sounds suspiciously like a bad thermistor: they heat up then fail open; hence temps rise then at some point drops to zero.  And, the failure is intermittent: when it cools down, everything is fine again.  But a closer inspection will usually reveal the 25c resistance is not correct.

Anyway - order a new thermistor from Prusa ... that way you get the proper cable length and termination. Or order from E3D, but you'll probably need to adjust lengths and connector.

 

Postato : 12/08/2019 5:55 pm
thomas.s10 hanno apprezzato
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(@)
Illustrious Member
RE: PREHEAT ERROR

Try PID calibration; if the issue persists then do the same thermistor tests.

Postato : 09/09/2019 2:02 pm
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