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Decoupling error

Posted by Norminal 
Decoupling error
January 28, 2018 10:26AM
I have a HE3D K280 printer and I printed out two prints (first prints too) when I ran into a decoupling error. I checked to see if there were any volts going through the place where the wire connected to the board (there were about 24v) and checked if the temp sensor was working; it did.

I got a hair dryer and blew hot air on the temp sensor as I told the heater to heat to 200C. So I basically tricked it to believe the heater was heating up, so it continued to heat itself instead of giving me an error (“dec” on the LED screen).. This should indicate that there isn’t anything physically wrong?

I am dumbfounded as to why. I did buy a spare one but I don’t know why it’s giving me this error. I have checked all connections as well
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