Blokes just emailed me, radiators cold upstairs, warm downstairs, boiler in garage. Any ideas guys? Guys thinks he needs it power flushing, any advice from you lovely people ?
Probably nothing to do with boiler to be honest. I'd check the ball valve in the header tank if the rads are cold upstairs, could be empty and not filling back up.
Blokes just emailed me, radiators cold upstairs, warm downstairs, boiler in garage. Any ideas guys? Guys thinks he needs it power flushing, any advice from you lovely people ?