Hi. I have a problem in my new house. It's a 'standard' gas boiler
the heating and a DHW tank. There's a 3-way solenoid valve on
the exit from
boiler to control flow to DHW, CH or both.
There was a DHW tank thermostat fitted but no cable. The input for the
in the controller panel, has been bypassed so that DHW is
heated to the same
temp as CH water, ie too hot for me.
The problem is that, when I wired the DHW thermo back in, when it
set temp the hot water cuts off as expected but so does the
Is this down to the way the programmer and controller panel have been
The panel has a number of wires around the edge, some of
which have been
clipped. I assume they are left intact/clipped to
select various options during
installation. I don't have instructions
to decipher though.