My Pyronix PIR (KX10DP-WE) has no sensitivity at low height so I would like to remove the pet filter (we have no pets) as they say you can do in the manual 'removing the pet mask in the lens'.
However, I can't work out how to remove the mask. The little screw is covered a transparent...
I have a Honeywell ST7100 central and hot water controller. It has worked fine for years, and still works fine if I select only hot water, or only heating.
But if I select heating and hot water then a loud rattling/vibrating noise instantly begins. Switching back to either ch or water stops...