Recent content by Rayscho

Thanks for the info. Simond right, problem was an earth fault on the switched live. A small nib of wire protruding from a row of Choc boxes earthing onto the metal patress box. Problem solved. Thanks to all who wrote in. Cheers Ray

Again thanks for the reply, the Pos live switched feed is from the zone controls, however the No4 terminal has a negative feed through the pcb. Therefore when the switched feed is connected to No4 there is a dead short and the rcd trips. Any help appreciated.

Thanks for the reply, however when connecting the switched live to the No 4 terminal, the House rcd tripped. Checked No 4 terminal and found that when meter connected to Line +Pos (Boiler) and No 4, meter read 230 Volts, therefore it appears that the No 4 terminal is getting a Negative feed...

Help required with the wiring of a Vaillant ecotec 418 Boiler. No 4 terminal on the PCB: should this be voltage free ie the switched live for the boiler, as this terminal has a negative feed when checked with a meter. can anyone help with this problem Thanks in anticiption