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Bed not heating , control board issue  

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Noha Hani
(@noha-hani)
New Member
Bed not heating , control board issue

Bed isn't heating anymore , kept examining each part till I came to the issue as the board isn't sending any voltage to the bed heating port .
When I switched bed heater with nozzle heater , It worked perfectly 
And when I measured voltage from the back of the board "Red circle in second photo " It read 0.14 V instead of 12 V . 
does that mean I need to change the board or there might be a solution for that issue ?

Respondido : 08/11/2020 1:49 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Bed not heating , control board issue
Posted by: @brainygirl35

Bed isn't heating anymore , kept examining each part till I came to the issue as the board isn't sending any voltage to the bed heating port .
When I switched bed heater with nozzle heater , It worked perfectly 
And when I measured voltage from the back of the board "Red circle in second photo " It read 0.14 V instead of 12 V . 
does that mean I need to change the board or there might be a solution for that issue ?

Have you ever checked the fuses?
Maybe I would also check the bed thermistor.

Are the plug connections and all wires okay - no corrosion?

 

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Respondido : 08/11/2020 2:23 pm
Noha Hani
(@noha-hani)
New Member
Topic starter answered:
RE: Bed not heating , control board issue

@karl-herbert

Checked the fuses , they are good . 
The connections are also working as when I plug the bed heater in the nozzle heater port , it heats properly . 

Respondido : 09/11/2020 10:44 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Bed not heating , control board issue

Have you checked voltage between Heater + and incomming power -  ?  

the Fuse is in the +ve part of the circuit, And 
the Mosfet is in the -ve part of the circuit


regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Respondido : 09/11/2020 12:20 pm
Jo
 Jo
(@jo-3)
New Member
RE: Bed not heating , control board issue

@noha-hani

Probably I have the same problem with the bed heating

middle of the print the bed heating stopped.

Cables and thermister are ok, no volage on the clamps on the board

Could you repair the board or is it necessary to buy  a new one.

If you coud repair it please let me know how you fix it.

Thankx in advance.

Regards, jo

Respondido : 17/12/2020 6:45 pm
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