I agree, that's how most time switches display. I just checked mine.
When there is a scheduled hot water event, the heat link sends a live to
my cylinder thermostat, and that, when closed (cold) sends the live to
my hot water coil pump (I have a dedi...
OK - just to clarify - I have the UK edition which uses a heat link box
and switches mains voltages. My thermostat is connected wirelessly to
the heat link. Mine definitely shows an orange status for the hot water
when it comes on, but it reverts to ...
I think that the heat link actually can detect if the cylinder
thermostat is open or closed - must be very clever current sensing? In
any event, mine seems to send a grey icon once the tank is hot - and I
am not using open therm.
