I have a Worcester Bosch 30cdi conventional boiler which as stopped working.All seems ok with no numerical faults displaying,but the display is flashing between boiler temp and 2 small zeros which is air purge mode, This stays in this mode continuously (left for over 1 hour) have checked pump this is ok, Can any one offer any advice
There's an automatic air valve inside the boiler somewhere - is its cap loose or removed to allow air out?
In message , rocky writes
RTFM ...
That is *so* UKRM ;-)
replying to rocky, Wirdy wrote: New answer to an old question, but maybe useful for anyone now searching for an answer. If your Worcester CDI stays in air purge mode, it's likely that the control value (2c in engineer mode) has been set to '2'=permanently on. You'll need to go into the service menu and check the stored value of the air purge mode . It is normal to set it to 1 on a brand new boiler or after maintenance, this causes a 8 minute purge cycle whereafter the value automatically reverts to a zero (air purge off). The procedure for going into the servicing menu is in the engineers manual for the CDI range of boilers and is available online if you search for it. If you're not confident reading an engineers manual and pressing buttons to control menus then best left to an engineer. Don't go changing other values apart from 2c or doing a factory reset as the other values stored are set up by your installing engineer for your particular installation.
2009 Post again.
read Geoff's comment made at the time
RTFM ......
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