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urosv

Bedheater not working

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Posted (edited) · Bedheater not working
Heater impedance = ~4ohm
Voltage on heater cables: 24V (output at arduino side and voltage on heater)
Current: 0A (no current)
 
----------------------------
already
1. changed cables
2. resolder wires at bedheater
3. re-measure twice everything
 
Any suggestions ?
 
Edited by urosv

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Posted · Bedheater not working

Hi,

Is it possible to control the impedance of the sensor?

On my ultimaker2 i have 110 Ohm for the sensor.

 

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Posted · Bedheater not working

Okay.

maybe the other idea is to measure directly on your board (if you have not already done it ? 

 

A+

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Posted · Bedheater not working

I fixed the problem. Since all measurements indicated that everything is ok i tried last one thing. The junction part of the heater cable was overheated and contact ware overheated also, so i replace the wires and solder them directly to heatbed and on the main board at the opposite side. So bad junction was the problem !

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