For the fridge doors, I’ve noticed I get quite a few failed statuses, where it would say my door is left open but actually isn’t. I mean the fridge door is opened probably hundreds of times a day, but wanted to know if this is a common thing for these contacts. I think I installed them correctly but here is a photo of them.
If they are opened and closed frequently (like multiple times within the span of the 3 minute status delay in ADC) you may not see all the notifications you would expect, although it shouldn’t really affect a left open notification.
That may be more likely due to the sensor attached directly to metal like that. Signal attenuation will be pretty high. Especially if the panel is somewhat far away, but even close by, the fridge is a lot to contend with.
You could try raising the sensor off the surface a bit with a spacer. This is often enough to help when attaching to a metal surface.
If you have persistent issues, a wired contact with a wireless transmitter installed nearby but not directly on the fridge may be better. The S-Line DW Extended is an option.