Ask the Question

cooky5 · Joined: 01 Apr 2008 Posts: 3 Location: scunthorpe

The pressure dial on my combi boiler shows just above 0, how can the pressure be increased?

poolcorgi · Posted: Tue Apr 01, 2008 8:55 am Post subject:

make / model of boiler ??

cooky5 · Joined: 01 Apr 2008 Posts: 3 Location: scunthorpe

Worcester 24cdi

Also the hot water is ok when the heating is on but still runs very slow.

poolcorgi · Posted: Tue Apr 01, 2008 1:44 pm Post subject:

remove the bottom panel from the boiler insert the plastic filling key and open the grey knob watch the pressure gauge 1.2 cold

then reverse the procedure

if you need the book e mail me Very Happy

cooky5 · Joined: 01 Apr 2008 Posts: 3 Location: scunthorpe

Thanks for your advice, i bought my house at the end of last year, the previous owner did not leave the book or filling key, can this work be done witout the filling key? again thanks for your help

thescruff · Moderator Joined: 03 May 2003 Posts: 4164 Location: Bath

Yes you could attach an hose pipe to a draincock.

If the pressure has suddenly dropped, you will have to suspect the expansion vessel has gone or lost its charge.

PTS, Plumbase, Plumstop etc should have the key.