M
mitchellcook
Evening all. Had a bit of a head scratcher today. called out to a job and the boiler and pump were running when the programmer was off. It was a satchwell/sunvic wiring center, the one with the circuit board in the metal box. I disconnected the wires at the programmer, room stat and cylinder stat and there was still power down the switch live (orange) from the three port. I then disconnected the three port from the wiring center and the boiler and pump where still running. Phoned up a sparks and he reckons the live is back feeding through to the switch live through the wiring centers circuit board. Have any of you guys come across this or agree? Thanks, Mitchell.