worcester bosch heatslave 15/19 oil-fired combi

[g-force1967]

i keep finding puddles of water around the boiler. it is coming from a small cylinder which sits on top of the tank on the left hand side. the cylinder has a small black cap on it with a small hole in it. the pressure gage is currently reading 0 because i have drained the water off of the central heating . can anyone give me any info as to what the problem could be? many thanks.

 

[bripl]

sounds like you need to change the aav, auto air vent,do it now while you have it drained plus throw some inhibitor in now as well

 

[g-force1967]

is that a difficult thing to do. where can i get a new one from on a bank holiday weekend? many thanks.

 

[bripl]

try a plumbers merchant screw one out screw one in,failing that b&q

 

[g-force1967]

many thanks bripl.

 

[oilman]

Reduce the water pressure by operating the pressure relief valve, then you should be able to unscrew the old and screw in the new without too much water getting loose.