there is a test button that scrolls through various elements
The pump - you hear it kick in
Relay - the boiler starts up and ignites
Then each actuator and although the ld illuminates to show which one there is nothing else - the boiler doesn’t start up
You then scroll back to the start.
The pump - you hear it kick in
Relay - the boiler starts up and ignites
Then each actuator and although the ld illuminates to show which one there is nothing else - the boiler doesn’t start up
You then scroll back to the start.