Hello, I received the Geeetech MK8 dual extruder tonight, looks great. I wired it up to replace the dual extruder in my Makerbot Replicator 2x. I powered it up and the extruders do not heat up. After some time I would get an error message to check connections. I triple checked the wiring and everything matches the way it was with the makerbot extruder. Any ideas? Please help me troubleshoot this, burned an entire night trying to get this fixed. Thanks
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