Hi all...help!!

So I have a wirless drayton digistat scr connected to a valiant boiler. The
thermostat is working (new batteries) and is telling the receiver to turn on
and off the boiler. Relay seems to be working inside the unit as I can hear a
click and green light appears.

I can't overright the boiler to force on with the top over right button (does
nothing).

When the thermostat gets to optimum temperature the green light goes off but
the boiler stays on.

Problem is we moved in recently so we will never know if it used to work
correctly.

What's your thought?



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