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Mad Doctor
(@mad-doctor)
Active Member
Bed preheat error

Hi everyone. I have a been unable to get my bed to heat over about 73-75 degrees. After looking on the forum, I replaced my bed thermistor with a new one. Every time I try heating the bed, I get the Bed preheat error message. I really have been struggling with the multi material upgrade-lots of plugging, and now this. I was printing in PLA, but thought I would try ABS. Temped to go back to the original single material version. Frustrated. I should mention, prior to the upgrade to MM, I replace the heated bed wires with 14 ga silicone wires after one of them broke. Thanks

Posted : 17/07/2017 9:39 pm
AJS
 AJS
(@ajs)
Noble Member
Re: Bed preheat error

There is a small potentiometer on the RAMBO board that controls the voltage to the heater. People on this forum have had luck adjusting it up slightly to attain higher bed temperatures. It is best to measure the voltage so you don't go too high.

Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…

Posted : 18/07/2017 2:16 am
Mad Doctor
(@mad-doctor)
Active Member
Topic starter answered:
Re: Bed preheat error

Thanks, I will give that a try.

Posted : 19/07/2017 9:37 pm
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