Hey everyone I've got a few door sensors but i've got one that stopped working. This isn't a surprise since this house has had slightly over 50% fail rate for those units replaced(Side note: switching to lithium batteries might be fixing them frying them at low volts, can't complain too much as SmartHome has been great so far). I have a new failure type not the typical unit doesn't power up or anything. This one if you press the button the LED does indeed light up but doesn't light up when you pass the magnet by the sensor even touching it to the unit. I would assume the magnet probably isn't bad but the sensor that reads the field might be? Is there much to test, the board looks pretty clean.