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A20T bed temp' error
Posted: Wed Jan 29, 2020 10:50 pm
by ksna
hi.
I contacted you by email but I have no answers here.
bed temperature rises. Only the display is fixed.
How can I apply for service if it is less than a month old?
Please answer fast.
youtube link :
https://youtu.be/yYFiP_PlFME
Re: A20T bed temp' error
Posted: Thu Jan 30, 2020 6:56 pm
by William
Hi,You can try to remove the hot bed line from the motherboard, view the temperature display, -14 display, the motherboard is normal, you can measure the hot bed's thermistor.
Re: A20T bed temp' error
Posted: Thu Jan 30, 2020 7:10 pm
by ksna
The LCD shows 47 temperatures even after the bed temperature sensor is removed.
What should I do?
Re: A20T bed temp' error
Posted: Thu Jan 30, 2020 11:26 pm
by ksna
1. Bed temperature increase.
2. Temperature sensor resistance measurement - gradually decreases
* Temperature sensor normal
3. Temperature measurement failed when connected to the control board- 47 degrees display
* Judging by a control board error
4. I want to replace the control board
5. Purchase date - Aliexpress 2020-01-10
6. Order ID: 8008360194811768
7. Please take action early.
Re: A20T bed temp' error
Posted: Fri Jan 31, 2020 3:58 pm
by William

Hi,If the display of the hotbed is stable and abnormal, you can contact the platform you purchased or your sales to explain the situation.
I hope this can help you.