52 minutes ago, datadiffusion said:

 

You trainspotter!

 

OP, what did you replace them with? A quick sketch of the place with placement of the PIRs would help a lot.

Replaced with scantronic PIR

8 minutes ago, sixwheeledbeast said:

That's the original one with the screw top centre,

 

Sold in pre nicotine stained yellow for the good old days when people smoked in doors....

it was crisp white inside, but yellow on the outside!

I tried the option 21 as said above and that has now cleared it but Ive now got this tamper error:

 

 

 

 

No I think you misunderstood. If you program the panel as eol then you need to fit the resistors in the devices. You are using it (it appears) in non eol mode which enables the common AT circuit. It is that circuit that has a fault you will have to trace it one by one to find it