Hey GlendaleEngineer,
I’ve had the company out who investigated and were unsure themselves. Having phoned Risco Technical, they advised to just replace the sensor. Apparently their tolerance for instances are to not even mess about as they have had ones returned, spent a fair amount of time trying to diagnose and not found anything.
This particular sensor was the closest one to the main unit and was on a test running at 89% strength. So its not even as though it had a weak signal constantly trying to try and being a Shock Sensor should be in sleep
mode most of the time.
My other fault was the back door magnetic contact, when the back door was opened, it wouldn’t allow me to set the alarm for approx 15mins until the sensors talked back to the main unit again.
This was down to the back door having a shock as well as a mag contact and apparently when Risco investigated this scenario, the door closing would activate both at the same time to update the main unit.
To sort this out, on door contacts only, setting pin#4 allows the door contact to send a double poll to the main system to ensure that its signal gets there !
Anyway, the end of the story. My faults are now resolved.
Clarification on the £13 a month, that gets out of the £75+vat callouts that I had to pay but not chargable parts. Obviously if I get more frequent callouts, then I may take the £13 p/m contract out.