Hi all, please help a newbie out here...
I have had a new CH boiler and system installed. When it was fired up everything worked fine. Today I switch on the heating to find that I can get hot water and heating upstairs but the radiators downstairs are cold.
Why???
My heating system details are:
Boiler: Ideal Mexico HE24, located downstairs in the utility room with its controller.
The thermostat is in in the hall way.
The immersion is in the bathroom upstairs with the CH pump - Grundfos Alpha+ and a Honeywell Sundial Y Plan 3 position diverter valve.
There are no error codes on the boiler display, it shows everything is running fine.
Hot water-a-plenty, nice and hot radiators upstairs but cold (tepid) radiators downstairs.
Help... :x