Mother in Law had a visit from BG 3* cover people....
Her radiators upstairs are getting hot even though the CH is mos certainly off. Hw is on for a couple of hours in the AM and PM.
I was there for their visit - but they told her she urgently needs system flush and something about an "anti-gravity" valve........and th cost for the "repair"........£599 +VAT.
I had BG telling me I needed a system flush - but I did it myself afte hiring the necessary equipment for £100. Do the experts amongst yo agree that hot radiators upstairs is down to this - sounds fishy to m (but I really am not an expert!!!!)
Grateful for some advice pleas
-- alexbartman