OpenSprinkler › Forums › Hardware Questions › DIY Kit Assembly Questions › Bad power supply voltages › Re: Re: Bad power supply voltages December 29, 2012 at 6:52 pm #23257 RayKeymaster 1. The front looks ok. Could you also post an image of the back of the PCB so I can see the solder joints? 2. Could you use a multimeter to check the AC (not DC) voltage of your sprinkler transformer? What’s the reading?
