Hi,
Ha, was just looking at those suppressor in Farnells /CPC, seems they are the type that have the flying leads , not just the short pcb wires.
I have two valves, both newish ( 1 - 2 years) Honeywell v4043 2 port valves but had not been able to find if they had been fitted with suppressors at the factory, assume not.
The hot water thermostat is about the same age and all are quiet close together along with the heating wiring box so I can fit the suppessors in there with only a short cable run, if I cannot fit them onto the actual valves / stats.
All the door and window contacts and sensors are hard wired, no wireless at all , I'm not a wireless fan.
While I would have hoped the Honeywell alarm unit would have used some form of hardware and software filtering, seems probably not, hence my thoughts about using some form of signal filter on the incoming zone cables, not just for this problem, but to avoid and future noise problems; any sugestiong there ..?
Thanks