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Only half of heated bed getting hot

Posted by bytemedwb 
Only half of heated bed getting hot
January 17, 2014 11:11PM
Wondering if anyone has seen this issue.
I just installed a new Mk2A dual voltage heated bed on my Prusa I2 (the solder pads on the old one were shot).
The first print went fine but it seemed that the bed took a long time to get to temp (90C for PLA). When
I tried to print again tonight it would not get to temp even after an hour.
I double checked by wiring and solder connections and they were fine.
But I did notice as I was trying to heat the bed the side closest to the solder pads was
actually cold while the far side was really hot. (Thermistor is in the middle).

I will unsolder the wires and test the resistance tomorrow.
I am wondering if I have a bad heated bed.
Re: Only half of heated bed getting hot
January 18, 2014 03:08PM
On mine for 12v you have to link two out of the three of the connections. For 24v you just use two.
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