Hi there,
Got problems with a SIAMP overflowing, when I've had issues in the past they've continuously overflowed. The solution was a new diaphragm washer. This time it overflows for 10s then stops.
I've replaced the washer and tried to make adjustments when it was still doing it - moved...
Does anyone know what the white link cable is next to the EMS Bus connector - the manual states it's a "On/Off thermostat input" guessing it's closed so that the heating just comes on, but don't know if the EMS bus or a controller would over-ride that or if you fit a controller should you remove...