Hi, hope someone can help. I'm in a 4 bedroom house. I have a Valiant boiler and it's recently been converted to a sealed system. It was losing pressure but this was fixed by a leak sealer. The problem is that when the heating comes on on a programme the upstairs get hot but downstairs stay cold.
However if I adjust the room thermostat downstairs then the downstairs rads all heat up properly, until the programme kicks in when they go cold again. Any suggestions appreciated
However if I adjust the room thermostat downstairs then the downstairs rads all heat up properly, until the programme kicks in when they go cold again. Any suggestions appreciated
