moving to a new house and am taking my salus wireless thermostat with me. the plumber quoted me for the new house install and included an EPH CP4 RF thermostat so I decided to remove the salus500 and fit the new one before leaving. connected everything up but the thermostat is not switching the boiler off and on when i power up the central heating comes on and stays on.
the back box wiring seems to be the same for both units and i connected the cables the same as the one i removed
seems simple enough
mains in and looped out to the boiler
link between live mains and terminal 2 on the unit
and a grey one on terminal 1 on the EPH to the RT block in the boiler
Any idea what i am doing wrong
photo attached
PS on the Salus the grey is from the NO terminal to the boiler
Thanks
the back box wiring seems to be the same for both units and i connected the cables the same as the one i removed
seems simple enough
mains in and looped out to the boiler
link between live mains and terminal 2 on the unit
and a grey one on terminal 1 on the EPH to the RT block in the boiler
Any idea what i am doing wrong
photo attached
PS on the Salus the grey is from the NO terminal to the boiler
Thanks
