While you wait for answers, we may have found some information which could help you.
Success
Message
hot water flow stopped?
why no hot water, when iv got heating ?
not fireing?
which way do I turn the pressure valve please?
how do i get pressure back up?
should my worcester junior have grey sand in DHW CAP? ?
Why am I getting a steady drip from my overflow pipe ?
Radiators cooling down?
No hot water?
Hot water ?
Treatment?
How can I reduce the pressure?