help need some info

[sstephen]

my boiler isn't working right i think its the air pressure in the small expansion tank its a worcester 9.24 electronic (very old) does anyone know what it should be as i haven't got a manual and cant find one on the net

 

[kevplumb]

first things first fella what's the prob

 

[namsag]

Simple kev its a 9.24

 

[kevplumb]

as in you twit what the OP thinks is not pertinent

 

[sstephen]

the air presure is going very high when the heatings on or using the hot water. a plumber friend said its the air presure but doesn't know what it should be for this type of boiler

 

[kevplumb]

the air presure is going very high when the heatings on or using the hot water

no the water pressure in the system is going high

you need to repressurise the expansion vessel

shrader valve as in car tyre on ex v

.8 to 1 bar with the boiler drained

 

[sstephen]

thanks for your help i will give it a try