Does anyone know where we can purchase just the circuit board for the power supply. Ours is 3 yrs old and the power supply just stopped working. Like 3 weeks out of warranty. Go figure. But my husband checked it with the meter and brought it in the house a plugged it to make sure and nothing. No power at all. And I have searched to try and find a replacement board with no luck. Or is there is a third party board that will work I will take that too. Thanks.