I installed a TCG-6131P controller to regulate temperature on silicone rubber heating strip installed on my solvent printer to provide heat to help the ink dry fester as I print on vinyl. My problem is the the controller is over and under shooting quite a bit. I noticed if I unhook the heating wire from the controller first then start up the unit its seems stable, however as soon as I put the heater wire back on the controller terminal it starts over and under shooting. I uploaded here the wiring diagram and the spec for the controller showing default settings and also my settings. I am trying to achieve a setting of 33°C setting. All help welcome!!!
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