I have a 9448 installed roughly 15 years ago - recently one PIR has started to glow red continuously
Can I simply replace the PIR with a new one (no obvious spiders etc infront of sensor) without opening the box? or is there likely to be another fault
I do not have the service manual only the basic user manual/instructions
any help appreciated
And
Can I simply replace the PIR with a new one (no obvious spiders etc infront of sensor) without opening the box? or is there likely to be another fault
I do not have the service manual only the basic user manual/instructions
any help appreciated
And