I'm a bit stuck with the wiring.
I need to replace a Room thermostat.
Both have 4 terminals.
The old ones are numbered 1, 2, E, 4
the diagram inside the old case seems to suggest
The new one did not come with instructions so I'm hoping someone will know what's what.
In the new box the diagram shows 4 terminals numbered
1- remote switch L
The wires coming into the box are RED, BLACK, BLUE and Green/Yellow.
I relaise the Green yellow is probably the earth, and goes to the new terminal maked E on the new Stat, but I'm stuck on the other wires.
Any help will be very welcome.
With advanced Thanks !