Hotbed does not heat anymore (no power)

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Liizok8u
Posts: 5
Joined: Tue Jan 21, 2020 10:49 pm

Hotbed does not heat anymore (no power)

Post by Liizok8u » Wed Jan 22, 2020 2:58 am

Hey,

from one print to another, my heatbed does not heat anymore. :/ I messured the voltage at the powercord and there is no 24v coming in. I opened up the printer and found this heatbed board. It has 24v coming in from the power supply (working) and it recieves 24v from the mainboard, when I set the bed temperature (also working). The red LED turns on. When I heat the bed with a fan, the temperature sensor reports a higher temperature, so everything seems fine here as well.
photo_2020-01-21_19-52-55.jpg
photo_2020-01-21_19-52-55.jpg (152.94 KiB) Viewed 21642 times
But there is no outgoing 24v to the bed. Any ideas?

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William
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Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: Hotbed does not heat anymore (no power)

Post by William » Wed Jan 22, 2020 9:54 am

:D Hi, Are you referring to the fact that the heated bed itself cannot be heated?
You can check the temperature indicator by unplugging the hot-bed wire from the motherboard.
If -14 is displayed, measure the thermistor on the hot bed.
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

Liizok8u
Posts: 5
Joined: Tue Jan 21, 2020 10:49 pm

Re: Hotbed does not heat anymore (no power)

Post by Liizok8u » Tue Feb 18, 2020 7:28 pm

William wrote:
Wed Jan 22, 2020 9:54 am
:D Hi, Are you referring to the fact that the heated bed itself cannot be heated?
Yes
William wrote:
Wed Jan 22, 2020 9:54 am
You can check the temperature indicator by unplugging the hot-bed wire from the motherboard.
If -14 is displayed, measure the thermistor on the hot bed.
It does say -14. How would I measure the thermistor?

regards

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William
Site Admin
Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: Hotbed does not heat anymore (no power)

Post by William » Wed Feb 19, 2020 9:21 am

Hi,you can measure the thermistor of the hot bed, generally about 80kΩ at 25 °
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

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