hi my heatline vizo boiler isnt workin. light with BAR is flashin says pressure not working. i have 4 valves underneath the boiler (L-R) red yellow blue and blue there is a flexi hose but connects straight into the boiler and into wat looks like the waste?? but there is defo no valve on it like...
im having the same problem with my heatline vizo. no pressure. there is a flexi hose looks like its connettin into the waste?? no valve on it anyway for sure leads right into the boiler. 4 valves (l-r) red yellow blue and blue how do i fix the pressure???