While you wait for answers, we may have found some information which could help you.
Success
Message
Leak on overflow pipe?
Constant rise of water pressure in valiant combi echo plus boiler?
Valiant timeswitch 130 control panel?
hot water on combi?
valient eco pro pressure gauge?
Valiant combi boiler 2005 installation?
water not getting really hot?
Valiant F22 low pressure problem?
Valiant combi compact boiler -low water pressure?
hot water on valiant combi does not run very hot?
How do I remove Valiant analogue 130 timer from Turbo max combi boiler ?
Hot water and Central Heating Not coming on?