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Hey guys need some help from those of you who are familiar with the diyinhk mod for DDC pumps

Grabbed a pcb from their site last week for the pump i had inherited from work went to do the mod today and it worked fine when i tested it

Webt to put it in my rig and it ran great filling the loop and then nothing i disassembled and found a broken coil wire which i resoldered back on and still nothing please help